Building retrofit data sheds light on energy efficiency: Harvard study

<!DOCTYPE html> <html class="no-js" dir="ltr" lang="en-US" prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb#"> <head> <meta charset="utf-8"> <meta http-equiv="x-ua-compatible" content="ie=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Building retrofit data sheds light on energy efficiency: Harvard study | Utility Dive</title> <meta name="description" content="Utility industry news and analysis for energy professionals."/> <meta name="sailthru.tags" content="utility,type-newspost,utility-electrification,utility-load-management,utility-tag-demand-side-manageme,utility-tag-energy-efficiency,utility-tag-solar"/> <meta property="fb:pages" content="511735792306612"> <script data-cfasync="false"> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('consent','default',{ 'ad_storage':'denied', 'analytics_storage':'denied', 'ad_user_data':'denied', 'ad_personalization':'denied', 'personalization_storage':'denied', 'functionality_storage':'granted', 'security_storage':'granted', 'wait_for_update': 500 }); gtag("set", "ads_data_redaction", true); </script> <script data-cfasync="false" src="https://cmp.osano.com/AzqdtLT8Mqkut2TZ/bdeb2f70-056f-4937-961a-e9db412e4c7a/osano.js"></script> <style> .osano-cm-widget{display: none;} </style> <script data-cfasync="false"> window.Osano.cm.addEventListener("osano-cm-script-blocked", function (item) { console.log("Script blocked: " + item); }); window.Osano.cm.addEventListener("osano-cm-cookie-blocked", function (item) { console.log("Cookie blocked: " + item); }); </script> <script> window.dive_location = "NonEU"; window.dive_limit_data_processing = false; </script>  <link rel="icon" type="image/x-icon" sizes="any" href="/favicon.ico?v=2" /> <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png?v=2"> <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png?v=2"> <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png?v=2"> <link rel="manifest" href="/site.webmanifest?v=2"> <link rel="mask-icon" href="/safari-pinned-tab.svg?v=2" color="#5bbad5"> <meta name="msapplication-TileImage" content="/mstile-150x150.png?v=2"> <meta name="msapplication-TileColor" content="#603cba"> <meta name="theme-color" content="#ffffff"> <link rel="alternate" type="application/rss+xml" title="Utility Dive - Latest News Feed" href="https://www.utilitydive.com/feeds/news/"/> <link rel="canonical" href="https://www.facilitiesdive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730588/"/> <meta name="title" content="Building retrofit data sheds light on energy efficiency: Harvard study" /> <meta name="medium" content="news" /> <meta name="date" content="2024-10-23" /> <meta name="twitter:card" content="summary_large_image"> <meta name="twitter:domain" content="Utility Dive"> <meta name="twitter:site" content="@UtilityDive"> <meta property="og:title" name="og:title" content="Building retrofit data sheds light on energy efficiency: Harvard study" /> <meta property="og:site_name" name="og:site_name" content="Utility Dive" /> <meta property="og:type" name="og:type" content="article" /> <meta name="article_date_original" content="Wednesday, October 23, 2024, 09:00 AM" /> <meta property="og:url" name="og:url" content="https://www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/" /> <meta property="og:image" name="og:image" content="https://imgproxy.divecdn.com/Q6gezbH1GCUBAGbGcs7CeQ_wy0SHFSMqXeG8cP5GZ-Y/g:ce/rs:fit:770:435/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp" /> <meta property="og:description" name="og:description" content="A two-year dataset on a residential-to-office building retrofit shows how low-energy and passive building systems can boost performance and sustainability in future projects, according to a paper published in Scientific Data." /> <meta name="sailthru.date" content="2024-10-23T09:00:00" /> <meta name="sailthru.expire_date" content="2034-10-11T09:00:00" /> <meta name="sailthru.author" content="Nish Amarnath" /> <meta name="sailthru.image.full" content="https://imgproxy.divecdn.com/Q6gezbH1GCUBAGbGcs7CeQ_wy0SHFSMqXeG8cP5GZ-Y/g:ce/rs:fit:770:435/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp" />  <meta name="sailthru.image.thumb" content="https://imgproxy.divecdn.com/cLOkL7JLw1Nj0ckPeezeyw20AGJWhzK0hj_-dTD0ODg/g:ce/rs:fit:106:60/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp" />  <meta name="sailthru.description" content="A two-year dataset on a residential-to-office building retrofit shows how low-energy and passive building systems can boost performance and sustainability in future projects, according to a paper published in Scientific Data." /> <link rel="stylesheet" href="/static/css/dive_app.css?510416050225"> <script> // Initialize dataLayer empty array for GTM events window.dataLayer = window.dataLayer || []; window.dataLayer.push({ 'site': 'Utility Dive', }); // wrapper function to push GTM events to dataLayer pushGTMEvent = (eventObject) => { // if window.datalayer is not defined, then set to an empty array window.dataLayer.push(eventObject); }; </script>  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-55G8WRR');</script>  <script> let eventParams = {}; eventParams.author = "Nish Amarnath"; eventParams.date_published_readable = "2024-10-23"; eventParams.post_type = "Brief"; eventParams.tags = "demand-side management, Energy Efficiency, solar"; eventParams.topics = "Building & Transportation Electrification, Load Management, Efficiency & Demand Response"; eventParams.clone = "True"; const gtmEventObject = { event: 'page.content', 'page.content': { v:11, // seer version ...eventParams } }; window.pushGTMEvent(gtmEventObject); </script> <script type="module" src="/static/js/dist/lyticsHelper.bundle.js?290716050225" ></script> <script type="text/javascript" src="/static/js/ad_blocker_recovery.js?160016291122"></script>  <script async src="https://fundingchoicesmessages.google.com/i/pub-8553262192892817?ers=1" nonce="RORABhIXgMhQdZXbks8fZQ"></script> <script nonce="RORABhIXgMhQdZXbks8fZQ">(function() {function signalGooglefcPresent() {if (!window.frames['googlefcPresent']) {if (document.body) {const iframe = document.createElement('iframe'); iframe.style = 'width: 0; height: 0; border: none; z-index: -1000; left: -1000px; top: -1000px;'; iframe.style.display = 'none'; iframe.name = 'googlefcPresent'; document.body.appendChild(iframe);} else {setTimeout(signalGooglefcPresent, 0);}}}signalGooglefcPresent();})();</script>  <script>(function(){/* Copyright The Closure Library Authors. SPDX-License-Identifier: Apache-2.0 */ 'use strict';var aa=function(a){var b=0;return function(){return b<a.length?{done:!1,value:a[b++]}:{done:!0}}},ba="function"==typeof Object.create?Object.create:function(a){var b=function(){};b.prototype=a;return new b},k;if("function"==typeof Object.setPrototypeOf)k=Object.setPrototypeOf;else{var m;a:{var ca={a:!0},n={};try{n.__proto__=ca;m=n.a;break a}catch(a){}m=!1}k=m?function(a,b){a.__proto__=b;if(a.__proto__!==b)throw new TypeError(a+" is not extensible");return a}:null} var p=k,q=function(a,b){a.prototype=ba(b.prototype);a.prototype.constructor=a;if(p)p(a,b);else for(var c in b)if("prototype"!=c)if(Object.defineProperties){var d=Object.getOwnPropertyDescriptor(b,c);d&&Object.defineProperty(a,c,d)}else a[c]=b[c];a.v=b.prototype},r=this||self,da=function(){},t=function(a){return a};var u;var w=function(a,b){this.g=b===v?a:""};w.prototype.toString=function(){return this.g+""};var v={},x=function(a){if(void 0===u){var b=null;var c=r.trustedTypes;if(c&&c.createPolicy){try{b=c.createPolicy("goog#html",{createHTML:t,createScript:t,createScriptURL:t})}catch(d){r.console&&r.console.error(d.message)}u=b}else u=b}a=(b=u)?b.createScriptURL(a):a;return new w(a,v)};var A=function(){return Math.floor(2147483648*Math.random()).toString(36)+Math.abs(Math.floor(2147483648*Math.random())^Date.now()).toString(36)};var B={},C=null;var D="function"===typeof Uint8Array;function E(a,b,c){return"object"===typeof a?D&&!Array.isArray(a)&&a instanceof Uint8Array?c(a):F(a,b,c):b(a)}function F(a,b,c){if(Array.isArray(a)){for(var d=Array(a.length),e=0;e<a.length;e++){var f=a[e];null!=f&&(d[e]=E(f,b,c))}Array.isArray(a)&&a.s&&G(d);return d}d={};for(e in a)Object.prototype.hasOwnProperty.call(a,e)&&(f=a[e],null!=f&&(d[e]=E(f,b,c)));return d} function ea(a){return F(a,function(b){return"number"===typeof b?isFinite(b)?b:String(b):b},function(b){var c;void 0===c&&(c=0);if(!C){C={};for(var d="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789".split(""),e=["+/=","+/","-_=","-_.","-_"],f=0;5>f;f++){var h=d.concat(e[f].split(""));B[f]=h;for(var g=0;g<h.length;g++){var l=h[g];void 0===C[l]&&(C[l]=g)}}}c=B[c];d=Array(Math.floor(b.length/3));e=c[64]||"";for(f=h=0;h<b.length-2;h+=3){var y=b[h],z=b[h+1];l=b[h+2];g=c[y>>2];y=c[(y&3)<< 4|z>>4];z=c[(z&15)<<2|l>>6];l=c[l&63];d[f++]=""+g+y+z+l}g=0;l=e;switch(b.length-h){case 2:g=b[h+1],l=c[(g&15)<<2]||e;case 1:b=b[h],d[f]=""+c[b>>2]+c[(b&3)<<4|g>>4]+l+e}return d.join("")})}var fa={s:{value:!0,configurable:!0}},G=function(a){Array.isArray(a)&&!Object.isFrozen(a)&&Object.defineProperties(a,fa);return a};var H;var J=function(a,b,c){var d=H;H=null;a||(a=d);d=this.constructor.u;a||(a=d?[d]:[]);this.j=d?0:-1;this.h=null;this.g=a;a:{d=this.g.length;a=d-1;if(d&&(d=this.g[a],!(null===d||"object"!=typeof d||Array.isArray(d)||D&&d instanceof Uint8Array))){this.l=a-this.j;this.i=d;break a}void 0!==b&&-1<b?(this.l=Math.max(b,a+1-this.j),this.i=null):this.l=Number.MAX_VALUE}if(c)for(b=0;b<c.length;b++)a=c[b],a<this.l?(a+=this.j,(d=this.g[a])?G(d):this.g[a]=I):(d=this.l+this.j,this.g[d]||(this.i=this.g[d]={}),(d=this.i[a])? G(d):this.i[a]=I)},I=Object.freeze(G([])),K=function(a,b){if(-1===b)return null;if(b<a.l){b+=a.j;var c=a.g[b];return c!==I?c:a.g[b]=G([])}if(a.i)return c=a.i[b],c!==I?c:a.i[b]=G([])},M=function(a,b){var c=L;if(-1===b)return null;a.h||(a.h={});if(!a.h[b]){var d=K(a,b);d&&(a.h[b]=new c(d))}return a.h[b]};J.prototype.toJSON=function(){var a=N(this,!1);return ea(a)}; var N=function(a,b){if(a.h)for(var c in a.h)if(Object.prototype.hasOwnProperty.call(a.h,c)){var d=a.h[c];if(Array.isArray(d))for(var e=0;e<d.length;e++)d[e]&&N(d[e],b);else d&&N(d,b)}return a.g},O=function(a,b){H=b=b?JSON.parse(b):null;a=new a(b);H=null;return a};J.prototype.toString=function(){return N(this,!1).toString()};var P=function(a){J.call(this,a)};q(P,J);function ha(a){var b,c=(a.ownerDocument&&a.ownerDocument.defaultView||window).document,d=null===(b=c.querySelector)||void 0===b?void 0:b.call(c,"script[nonce]");(b=d?d.nonce||d.getAttribute("nonce")||"":"")&&a.setAttribute("nonce",b)};var Q=function(a,b){b=String(b);"application/xhtml+xml"===a.contentType&&(b=b.toLowerCase());return a.createElement(b)},R=function(a){this.g=a||r.document||document};R.prototype.appendChild=function(a,b){a.appendChild(b)};var S=function(a,b,c,d,e,f){try{var h=a.g,g=Q(a.g,"SCRIPT");g.async=!0;g.src=b instanceof w&&b.constructor===w?b.g:"type_error:TrustedResourceUrl";ha(g);h.head.appendChild(g);g.addEventListener("load",function(){e();d&&h.head.removeChild(g)});g.addEventListener("error",function(){0<c?S(a,b,c-1,d,e,f):(d&&h.head.removeChild(g),f())})}catch(l){f()}};var ia=r.atob("aHR0cHM6Ly93d3cuZ3N0YXRpYy5jb20vaW1hZ2VzL2ljb25zL21hdGVyaWFsL3N5c3RlbS8xeC93YXJuaW5nX2FtYmVyXzI0ZHAucG5n"),ja=r.atob("WW91IGFyZSBzZWVpbmcgdGhpcyBtZXNzYWdlIGJlY2F1c2UgYWQgb3Igc2NyaXB0IGJsb2NraW5nIHNvZnR3YXJlIGlzIGludGVyZmVyaW5nIHdpdGggdGhpcyBwYWdlLg=="),ka=r.atob("RGlzYWJsZSBhbnkgYWQgb3Igc2NyaXB0IGJsb2NraW5nIHNvZnR3YXJlLCB0aGVuIHJlbG9hZCB0aGlzIHBhZ2Uu"),la=function(a,b,c){this.h=a;this.j=new R(this.h);this.g=null;this.i=[];this.l=!1;this.o=b;this.m=c},V=function(a){if(a.h.body&&!a.l){var b= function(){T(a);r.setTimeout(function(){return U(a,3)},50)};S(a.j,a.o,2,!0,function(){r[a.m]||b()},b);a.l=!0}},T=function(a){for(var b=W(1,5),c=0;c<b;c++){var d=X(a);a.h.body.appendChild(d);a.i.push(d)}b=X(a);b.style.bottom="0";b.style.left="0";b.style.position="fixed";b.style.width=W(100,110).toString()+"%";b.style.zIndex=W(2147483544,2147483644).toString();b.style["background-color"]=ma(249,259,242,252,219,229);b.style["box-shadow"]="0 0 12px #888";b.style.color=ma(0,10,0,10,0,10);b.style.display= "flex";b.style["justify-content"]="center";b.style["font-family"]="Roboto, Arial";c=X(a);c.style.width=W(80,85).toString()+"%";c.style.maxWidth=W(750,775).toString()+"px";c.style.margin="24px";c.style.display="flex";c.style["align-items"]="flex-start";c.style["justify-content"]="center";d=Q(a.j.g,"IMG");d.className=A();d.src=ia;d.style.height="24px";d.style.width="24px";d.style["padding-right"]="16px";var e=X(a),f=X(a);f.style["font-weight"]="bold";f.textContent=ja;var h=X(a);h.textContent=ka;Y(a, e,f);Y(a,e,h);Y(a,c,d);Y(a,c,e);Y(a,b,c);a.g=b;a.h.body.appendChild(a.g);b=W(1,5);for(c=0;c<b;c++)d=X(a),a.h.body.appendChild(d),a.i.push(d)},Y=function(a,b,c){for(var d=W(1,5),e=0;e<d;e++){var f=X(a);b.appendChild(f)}b.appendChild(c);c=W(1,5);for(d=0;d<c;d++)e=X(a),b.appendChild(e)},W=function(a,b){return Math.floor(a+Math.random()*(b-a))},ma=function(a,b,c,d,e,f){return"rgb("+W(Math.max(a,0),Math.min(b,255)).toString()+","+W(Math.max(c,0),Math.min(d,255)).toString()+","+W(Math.max(e,0),Math.min(f, 255)).toString()+")"},X=function(a){a=Q(a.j.g,"DIV");a.className=A();return a},U=function(a,b){0>=b||null!=a.g&&0!=a.g.offsetHeight&&0!=a.g.offsetWidth||(na(a),T(a),r.setTimeout(function(){return U(a,b-1)},50))},na=function(a){var b=a.i;var c="undefined"!=typeof Symbol&&Symbol.iterator&&b[Symbol.iterator];b=c?c.call(b):{next:aa(b)};for(c=b.next();!c.done;c=b.next())(c=c.value)&&c.parentNode&&c.parentNode.removeChild(c);a.i=[];(b=a.g)&&b.parentNode&&b.parentNode.removeChild(b);a.g=null};var pa=function(a,b,c,d,e){var f=oa(c),h=function(l){l.appendChild(f);r.setTimeout(function(){f?(0!==f.offsetHeight&&0!==f.offsetWidth?b():a(),f.parentNode&&f.parentNode.removeChild(f)):a()},d)},g=function(l){document.body?h(document.body):0<l?r.setTimeout(function(){g(l-1)},e):b()};g(3)},oa=function(a){var b=document.createElement("div");b.className=a;b.style.width="1px";b.style.height="1px";b.style.position="absolute";b.style.left="-10000px";b.style.top="-10000px";b.style.zIndex="-10000";return b};var L=function(a){J.call(this,a)};q(L,J);var qa=function(a){J.call(this,a)};q(qa,J);var ra=function(a,b){this.l=a;this.m=new R(a.document);this.g=b;this.i=K(this.g,1);b=M(this.g,2);this.o=x(K(b,4)||"");this.h=!1;b=M(this.g,13);b=x(K(b,4)||"");this.j=new la(a.document,b,K(this.g,12))};ra.prototype.start=function(){sa(this)}; var sa=function(a){ta(a);S(a.m,a.o,3,!1,function(){a:{var b=a.i;var c=r.btoa(b);if(c=r[c]){try{var d=O(P,r.atob(c))}catch(e){b=!1;break a}b=b===K(d,1)}else b=!1}b?Z(a,K(a.g,14)):(Z(a,K(a.g,8)),V(a.j))},function(){pa(function(){Z(a,K(a.g,7));V(a.j)},function(){return Z(a,K(a.g,6))},K(a.g,9),K(a.g,10),K(a.g,11))})},Z=function(a,b){a.h||(a.h=!0,a=new a.l.XMLHttpRequest,a.open("GET",b,!0),a.send())},ta=function(a){var b=r.btoa(a.i);a.l[b]&&Z(a,K(a.g,5))};(function(a,b){r[a]=function(c){for(var d=[],e=0;e<arguments.length;++e)d[e-0]=arguments[e];r[a]=da;b.apply(null,d)}})("__h82AlnkH6D91__",function(a){"function"===typeof window.atob&&(new ra(window,O(qa,window.atob(a)))).start()});}).call(this); window.__h82AlnkH6D91__("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"); </script> <script src="/static/js/jquery_360.min.js?543516150322"></script> <script> // waitForTriggerHandler() is library for queuing up javascript to be stored and then executed when a trigger // function is called. You can push() any number of functions which will be stored unless and until trigger() // is called. Once trigger() is called any future functions that you push() in will be executed immediately. // It is safe to call .trigger() multiple times. Any arguments passed to .trigger() will also be passed along // to the associated function function waitForTriggerHandler() { var function_queue = []; var trigger_arguments = []; this._triggered = false; this.push = function(fn) { if (this._triggered) { // just run it immediately if handler has already been triggered fn.apply(null, trigger_arguments); } else { // otherwise add to the queue to run later function_queue.push(fn); } }; this.trigger = function() { // any arguments passed to trigger(foo, bar, baz) will also be passed along to functions in the queue // first convert any arguments to an array trigger_arguments = Array.prototype.slice.call(arguments); while (function_queue.length){ // for each function in the queue, pop it off and then execute it while passing in any // args that may have been passed to trigger(). function_queue.pop().apply(null, trigger_arguments); // The "null" above is for the value of "this". // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/apply#Parameters } this._triggered = true; } } // set up waitToLoadAds handler window.waitToLoadAds = new waitForTriggerHandler(); // We set up the triggers for this below, they depend on whether we're loading lytics on the page </script> <script type="text/javascript"> // This token is here for test_lytics_snippet.py test: lytics-is-enabled window.googletag = window.googletag || {}; googletag.cmd = googletag.cmd || []; // initialize callback (source: https://learn.lytics.com/product-docs/lytics-javascript-tag/receiving-data-from-lytics) !function(){"use strict";var o=window.jstag||(window.jstag={}),r=[];function n(e){o[e]=function(){for(var n=arguments.length,t=new Array(n),i=0;i<n;i++)t[i]=arguments[i];r.push([e,t])}}n("send"),n("mock"),n("identify"),n("pageView"),n("unblock"),n("getid"),n("setid"),n("loadEntity"),n("getEntity"),n("on"),n("once"),n("call"),o.loadScript=function(n,t,i){var e=document.createElement("script");e.async=!0,e.src=n,e.onload=t,e.onerror=i;var o=document.getElementsByTagName("script")[0],r=o&&o.parentNode||document.head||document.body,c=o||r.lastChild;return null!=c?r.insertBefore(e,c):r.appendChild(e),this},o.init=function n(t){return this.config=t,this.loadScript(t.src,function(){if(o.init===n)throw new Error("Load error!");o.init(o.config),function(){for(var n=0;n<r.length;n++){var t=r[n][0],i=r[n][1];o[t].apply(o,i)}r=void 0}()}),this}}(); // custom init + lytics default install tag from https://activate.getlytics.com/connect?aid=2751 // see https://learn.lytics.com/understanding/product-docs/lytics-javascript-tag/configuration#configuration-options var lyticsCid = '44fda7674f94228540d8fba6786f9770'; console.log('You are using the Lytics Prod account'); jstag.init({ src: `https://c.lytics.io/api/tag/${lyticsCid}/latest.min.js`, pageAnalysis: { dataLayerPull: { disabled: true } } }); jstag.pageView(); (function(){ var sailthru_cookie, sailthru_user_id; function read_cookie(cookieName) { var re = new RegExp('[; ]'+cookieName+'=([^\\s;]*)'); var sMatch = (' '+document.cookie).match(re); if (cookieName && sMatch) return unescape(sMatch[1]); return ''; } sailthru_cookie = read_cookie('sailthru_hid'); if (sailthru_cookie.length > 56) { sailthru_user_id = sailthru_cookie.slice(32,56); jstag.send({ st_profile_id: sailthru_user_id }); } })(); jstag.call('entityReady', waitToLoadAds.trigger); setTimeout(waitToLoadAds.trigger, 1000); // also trigger lytics if it's taking too long waitToLoadAds.push(function (lytics_data) { // lytics_data won't be defined if lytics failed to load correctly. In that case // we don't need to set any segments. if (lytics_data && lytics_data.segments) { googletag.cmd.push(function() { googletag.pubads().setTargeting("LyticsSegments", lytics_data.segments); }); } }); function getUID(id) { window.dataLayer.push({'user_id': id}); }; jstag.getid(getUID); </script> <script type="text/javascript" src="/static/js/mailcheck.min.js?192616240919"></script> <script type="text/javascript" src="/static/js/dive_mailcheck.js?192616240919"></script> <script src="/static/js/app.js?262317060225"></script> <script type="text/javascript"> var divecounter_settings = {}; divecounter_settings.showSignupAd = true; </script> <script type="text/javascript" src="/static/js/divecounter.js?261616040423"></script> <script type="text/javascript"> // Special unbounce signup thing for google traffic. Test with ?test_unbounce in the URL // Note: divecounter must already be loaded. Only enabled on pages that would normally have signup ads // Note: showSignupAd is always off if prestitial is enabled! if ((typeof divecounter !== "undefined") && ($(window).width() > 640)) { var test_unbounce = (window.location.href.indexOf("?test_unbounce")>=0); var force_unbounce = (window.location.href.indexOf("signupbounce=1")>=0) || (window.location.href.indexOf("utm_campaign=Linked-HR")>=0) || (window.location.href.indexOf("utm_source=outbrain")>=0); if (test_unbounce || force_unbounce || (document.referrer.match(/^https?:\/\/(www\.google\.|news\.google\.|t\.co|twitter\.com|www\.facebook\.com)/i) && divecounter.getOption('showSignupAd') && divecounter.canShow(1,1)) ) { // dyanmically load ouibounce.js only on pages where its needed $.getScript("/static/js/ouibounce.min.js?102717100918", function(){ // Once ouibounce.js loads, call the script // We're reusing divecounter's modal instead of OuiBounce's modal code (that's why we pass it 'false') var _ouibounce = ouibounce(false, { aggressive: test_unbounce, // ignore cookie in test mode cookieName: '_viewedOuiBounce', // underscored cookies should be ignored by Varnish callback: function() { divecounter_open_ad(); } }); }); } // end should show unbounce } // end divecounter defined </script> <script type="module" src="/static/js/dist/googleAnalyticsHelper.bundle.js?290716050225" ></script> <script type="text/javascript"> function read_cookie(cookieName) { var re = new RegExp('[; ]'+cookieName+'=([^\\s;]*)'); var sMatch = (' '+document.cookie).match(re); if (cookieName && sMatch) return unescape(sMatch[1]); return ''; } var script = document.createElement('script'); script.type = 'text/javascript'; script.async = true; script.addEventListener('load', function(e) { // we only pass the template this context variable on newsposts let informaData = false; informaData = {"canonicalUrl": "https://www.facilitiesdive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730588/", "pageIsSponsored": false, "pageSponsor": "", "contentAuthor": "Nish Amarnath", "contentPubDate": "2024-10-23 09:00:00", "pageID": "newspost 730613", "pageTitle": "Building retrofit data sheds light on energy efficiency: Harvard study", "pageType": "brief", "primaryTerm": "Building & Transportation Electrification, Load Management, Efficiency & Demand Response", "secondaryTerm": "demand-side management, Energy Efficiency, solar"}; if (window.IIRISTracker) { var sailthru_id = read_cookie('sailthru_hid'); if (sailthru_id.length > 56) { sailthru_id = sailthru_id.slice(32,56); } var notProduction = 'False' === 'True'; var domain = 'www.utilitydive.com'.split('.')[1]; // on non-prod environment, there is specific collector domain to send the data to. var cDomain = notProduction ? 'com-informa-prod1.mini.snplow.net' : 'c.' + domain + '.com' // removed .com previous line var cfg = { config: { td: {}, snowplow: { context: {} } } }; cfg.config.idsource = 'sailthruid'; cfg.config.snowplow.appId = domain; cfg.config.snowplow.cDomain = cDomain; cfg.config.td.lob = 'it'; cfg.config.td.domain = domain; cfg.config.snowplow.contentTagEnabled = !!informaData cfg.config.snowplow.context = informaData window.IIRISTracker.initConfig(cfg); window.IIRISTracker.setTrackingUID(sailthru_id); var irisEvt = new Event('trackerLoaded'); window.dispatchEvent(irisEvt); } else { window.addEventListener('trackerLoaded', function(evt) { if(window.IIRISTracker) { window.IIRISTracker.setTrackingUID(sailthru_id); } }); } }); script.src = 'https://static.iris.informa.com/widgets/v3.0/iris-t.js'; document.getElementsByTagName('head')[0].appendChild(script); </script> <script type="text/javascript"> jQuery.browser = {}; (function () { jQuery.browser.msie = false; jQuery.browser.version = 0; if (navigator.userAgent.match(/MSIE ([0-9]+)\./)) { jQuery.browser.msie = true; jQuery.browser.version = RegExp.$1; } })(); </script>  <script type="text/javascript" src="/static/js/jquery.simplemodal.divefork.min.js?093716120922"></script> <style> /* dynamic style overrides based on DB go here*/ </style> <meta name="sailthru.title" content="Building retrofit data sheds light on energy efficiency: Harvard study" /> <meta name="sailthru.post_type" content="Brief" /> <meta name="sailthru.dive_awards" content="False" /> <meta name="sailthru.post_updated" content="False" /> <meta name="lytics:topics" content="Electrification, solar, Energy Efficiency, Load Management, demand-side management" /> <meta name="robots" content="max-image-preview:large"> <meta name="news_keywords" content="Building & Transportation Electrification,building-transportation-electrification,Electrification,Load Management, Efficiency & Demand Response,demand-response,Load Management"/> <script type="text/javascript"> /** Stolen from http://stackoverflow.com/questions/24816/escaping-html-strings-with-jquery **/ $(document).ready(function () { //"Tweet this" pullquote sections // This is used in the processing of 'tweet this' pull quotes function escapeHtml(string) { var entityMap = { "&": "&", "<": "<", ">": ">", '"': '"', "'": ''', "/": '/' }; return String(string).replace(/[&<>"'\/]/g, function (s) { return entityMap[s]; }); } // Process the twitter pullquote sections: // * create the link // * create the text ('tweet this quote') for the link $(".pquote").each(function (index) { var j_words; if ($(this).data('twitter-text') != 'undefined') { j_words = $(this).children('.tweetwords').first(); } else { j_words = $(this).data('twitter-text'); } var j_replace = $(this).children('.tweetquote').first(); var clean_text = escapeHtml(j_words.text()); var link_attributes = 'href="https://twitter.com/intent/tweet?text=' + clean_text + '%20https%3A//www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/' + '" class="popup button twitter" data-sharebutton="tweet_quote" data-shareusing="twitter"'; var img = '<img src="/static/img/social_icons/twitter-follow-icon.png?102717100918" alt="Share on Twitter" loading="lazy">'; var link = '<a ' + link_attributes + '>Tweet this quote' + img + '</a>'; j_replace.html(link); }); }); </script> <script type="module" src="/static/js/dist/signupReferrer.bundle.js?290716050225" ></script> <script data-cfasync="false" type="text/javascript" src="/static/js/prestitial.js?270116210524"></script> <script async src="https://securepubads.g.doubleclick.net/tag/js/gpt.js"></script> <script src="/static/js/dist/signupDataGam.bundle.js?290716050225"></script> <script type="text/javascript" src="/static/js/dist/adTemplates.bundle.js?290716050225"></script> <script> var eventMethod = window.addEventListener ? "addEventListener" : "attachEvent"; var eventer = window[eventMethod]; var messageEvent = eventMethod == "attachEvent" ? "onmessage" : "message"; // Build the site_logos object to be later referenced in house ads const site_logos = {}; site_logos['diveapi'] = { domain: 'diveapi', site_name: "API Site", alt_text: "API Site logo", is_current_site: false, white: { png: "None", svg: "None", }, black: { png: "None", svg: "None", } }; site_logos['agriculturedive'] = { domain: 'agriculturedive', site_name: "Agriculture Dive", alt_text: "Agriculture Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/agriculture_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/agriculture_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/agriculture_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/agriculture_black.svg", } }; site_logos['automotivedive'] = { domain: 'automotivedive', site_name: "Automotive Dive", alt_text: "Automotive Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/automotive_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/automotive_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/automotive_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/automotive_black.svg", } }; site_logos['bankingdive'] = { domain: 'bankingdive', site_name: "Banking Dive", alt_text: "Banking Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/banking_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/banking_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/banking_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/banking_black.svg", } }; site_logos['biopharmadive'] = { domain: 'biopharmadive', site_name: "BioPharma Dive", alt_text: "BioPharma Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/biopharma_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/biopharma_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/biopharma_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/biopharma_black.svg", } }; site_logos['cfo'] = { domain: 'cfo', site_name: "CFO.com", alt_text: "CFO.com logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cfodotcom_white.svg", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cfodotcom_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cfodotcom_black.svg", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cfodotcom_black.svg", } }; site_logos['cfodive'] = { domain: 'cfodive', site_name: "CFO Dive", alt_text: "CFO Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cfo_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cfo_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cfo_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cfo_black.svg", } }; site_logos['ciodive'] = { domain: 'ciodive', site_name: "CIO Dive", alt_text: "CIO Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cio_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cio_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cio_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cio_black.svg", } }; site_logos['constructiondive'] = { domain: 'constructiondive', site_name: "Construction Dive", alt_text: "Construction Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/construction_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/construction_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/construction_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/construction_black.svg", } }; site_logos['cstoredive'] = { domain: 'cstoredive', site_name: "C-Store Dive", alt_text: "C-Store Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cstore_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cstore_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cstore_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cstore_black.svg", } }; site_logos['customerexperiencedive'] = { domain: 'customerexperiencedive', site_name: "CX Dive", alt_text: "CX Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cx_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cx_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cx_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cx_black.svg", } }; site_logos['cybersecuritydive'] = { domain: 'cybersecuritydive', site_name: "Cybersecurity Dive", alt_text: "Cybersecurity Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cybersecurity_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cybersecurity_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cybersecurity_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/cybersecurity_black.svg", } }; site_logos['educationdive'] = { domain: 'educationdive', site_name: "Education Dive", alt_text: "Education Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/education_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/education_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/education_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/education_black.svg", } }; site_logos['esgdive'] = { domain: 'esgdive', site_name: "ESG Dive", alt_text: "ESG Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/esg_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/esg_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/esg_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/esg_black.svg", } }; site_logos['facilitiesdive'] = { domain: 'facilitiesdive', site_name: "Facilities Dive", alt_text: "Facilities Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/facilities_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/facilities_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/facilities_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/facilities_black.svg", } }; site_logos['fashiondive'] = { domain: 'fashiondive', site_name: "Fashion Dive", alt_text: "Fashion Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/fashion_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/fashion_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/fashion_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/fashion_black.svg", } }; site_logos['fooddive'] = { domain: 'fooddive', site_name: "Food Dive", alt_text: "Food Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/food_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/food_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/food_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/food_black.svg", } }; site_logos['grocerydive'] = { domain: 'grocerydive', site_name: "Grocery Dive", alt_text: "Grocery Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/grocery_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/grocery_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/grocery_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/grocery_black.svg", } }; site_logos['healthcaredive'] = { domain: 'healthcaredive', site_name: "Healthcare Dive", alt_text: "Healthcare Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/healthcare_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/healthcare_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/healthcare_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/healthcare_black.svg", } }; site_logos['highereddive'] = { domain: 'highereddive', site_name: "Higher Ed Dive", alt_text: "Higher Ed Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/highered_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/highered_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/highered_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/highered_black.svg", } }; site_logos['hoteldive'] = { domain: 'hoteldive', site_name: "Hotel Dive", alt_text: "Hotel Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/hotel_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/hotel_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/hotel_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/hotel_black.svg", } }; site_logos['hrdive'] = { domain: 'hrdive', site_name: "HR Dive", alt_text: "HR Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/hr_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/hr_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/hr_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/hr_black.svg", } }; site_logos['k12dive'] = { domain: 'k12dive', site_name: "K-12 Dive", alt_text: "K-12 Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/k12_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/k12_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/k12_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/k12_black.svg", } }; site_logos['legaldive'] = { domain: 'legaldive', site_name: "Legal Dive", alt_text: "Legal Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/legal_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/legal_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/legal_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/legal_black.svg", } }; site_logos['manufacturingdive'] = { domain: 'manufacturingdive', site_name: "Manufacturing Dive", alt_text: "Manufacturing Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/manufacturing_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/manufacturing_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/manufacturing_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/manufacturing_black.svg", } }; site_logos['marketingdive'] = { domain: 'marketingdive', site_name: "Marketing Dive", alt_text: "Marketing Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/marketing_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/marketing_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/marketing_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/marketing_black.svg", } }; site_logos['medtechdive'] = { domain: 'medtechdive', site_name: "MedTech Dive", alt_text: "MedTech Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/medtech_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/medtech_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/medtech_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/medtech_black.svg", } }; site_logos['mobilemarketer'] = { domain: 'mobilemarketer', site_name: "Mobile Marketer", alt_text: "Mobile Marketer logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/mobilemarketer_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/mobilemarketer_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/mobilemarketer_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/mobilemarketer_black.svg", } }; site_logos['multifamilydive'] = { domain: 'multifamilydive', site_name: "Multifamily Dive", alt_text: "Multifamily Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/multifamily_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/multifamily_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/multifamily_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/multifamily_black.svg", } }; site_logos['packagingdive'] = { domain: 'packagingdive', site_name: "Packaging Dive", alt_text: "Packaging Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/packaging_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/packaging_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/packaging_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/packaging_black.svg", } }; site_logos['paymentsdive'] = { domain: 'paymentsdive', site_name: "Payments Dive", alt_text: "Payments Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/payments_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/payments_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/payments_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/payments_black.svg", } }; site_logos['pharmavoice'] = { domain: 'pharmavoice', site_name: "PharmaVoice", alt_text: "PharmaVoice logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/pharmavoice_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/pharmavoice_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/pharmavoice_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/pharmavoice_black.svg", } }; site_logos['proformative'] = { domain: 'proformative', site_name: "Proformative", alt_text: "Proformative logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/proformative_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/proformative_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/proformative_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/proformative_black.svg", } }; site_logos['restaurantdive'] = { domain: 'restaurantdive', site_name: "Restaurant Dive", alt_text: "Restaurant Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/restaurant_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/restaurant_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/restaurant_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/restaurant_black.svg", } }; site_logos['retaildive'] = { domain: 'retaildive', site_name: "Retail Dive", alt_text: "Retail Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/retail_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/retail_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/retail_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/retail_black.svg", } }; site_logos['smartcitiesdive'] = { domain: 'smartcitiesdive', site_name: "Smart Cities Dive", alt_text: "Smart Cities Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/smartcities_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/smartcities_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/smartcities_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/smartcities_black.svg", } }; site_logos['socialmediatoday'] = { domain: 'socialmediatoday', site_name: "Social Media Today", alt_text: "Social Media Today logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/smt_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/smt_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/smt_color.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/smt_color.svg", } }; site_logos['supplychaindive'] = { domain: 'supplychaindive', site_name: "Supply Chain Dive", alt_text: "Supply Chain Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/supplychain_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/supplychain_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/supplychain_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/supplychain_black.svg", } }; site_logos['truckingdive'] = { domain: 'truckingdive', site_name: "Trucking Dive", alt_text: "Trucking Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/trucking_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/trucking_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/trucking_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/trucking_black.svg", } }; site_logos['utilitydive'] = { domain: 'utilitydive', site_name: "Utility Dive", alt_text: "Utility Dive logo", is_current_site: true, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/utility_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/utility_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/utility_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/utility_black.svg", } }; site_logos['wastedive'] = { domain: 'wastedive', site_name: "Waste Dive", alt_text: "Waste Dive logo", is_current_site: false, white: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/waste_white.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/waste_white.svg", }, black: { png: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/waste_black.png", svg: "https://d12v9rtnomnebu.cloudfront.net/logo/publications/waste_black.svg", } }; // Get the dive domain and return the dive logo object, or null if it doesn't exist in site_logos function getDivesiteLogoObject(link_url, alt_domain='') { let dive_domain; // Split link URL on 'adurl=' and take what comes after as the ad url const ad_url = decodeURIComponent(link_url.split('adurl=')[1]); // Split on . to get an array of hostname segments const dive_domain_array = new URL(ad_url).hostname.split('.'); // Retrieve the second to last element of the hostname array, which should always be the domain dive_domain = dive_domain_array[dive_domain_array.length - 2] if (alt_domain) { // If alt_domain has been specified, normalize it. i.e. "HR Dive", "http://hrdive.com", etc. => "hrdive" // This will override the link url's domain. dive_domain = alt_domain.replace(/\s+/g, '').replace(/^(https?:\/\/)?(www\.)?|\.com.*|\?.*|#.*/gi, '').toLowerCase(); } // Return the site logos object for this domain if it exists, or null if it does not if (site_logos[dive_domain]) { return site_logos[dive_domain]; } else { // Fallback logo const url_prefix = "https://d12v9rtnomnebu.cloudfront.net/divesite/responsive_ad_assets/small_logos/"; return { domain: 'industrydive', site_name: 'Industry Dive', alt_text: 'Industry Dive logo', white: { svg: url_prefix + 'industrydive-small-white.svg', png: url_prefix + 'industrydive-small-white.png', }, black: { svg: url_prefix + 'industrydive-small-black.svg', png: url_prefix + 'industrydive-small-black.png', } } } } eventer(messageEvent, function (e) { var key = e.message ? "message" : "data"; var data = e[key]; var eventName = data.message || 'ignore'; if (eventName == 'adContentAvailable') { var $ad_element; $ad_element = $('div').filter('[data-container-ad-unit-id="' + data.adUnit + '-' + window.dfp_visibility + '"]'); $ad_element.hide() var nativeAdEditorialSelector = '.sidebar .hybrid-ad-wrapper .native-ad-editorial'; var nativeAdEditorialExists = $(nativeAdEditorialSelector).length > 0; if ( nativeAdEditorialExists ) { $(nativeAdEditorialSelector).closest('.hybrid-ad-wrapper').addClass('native-ad-editorial-sidebar-border'); } // Inline homepage ad $('.feed-item-ad .hybrid-ad-wrapper a').each(function (index, element) { window.updateGamAdUrl(element, 'inline'); }); // Editorial native ad sidebar // NOTE: must go before inline native ad to ensure correct location added $('.sidebar .native-ad.editorial a').each(function (index, element) { window.updateGamAdUrl(element, 'sidebar'); }); // Editorial native ad inline $('.native-ad.editorial a').each(function (index, element) { window.updateGamAdUrl(element, 'inline'); }); // Sidebar ad $('.sidebar .hybrid-ad-wrapper a').each(function (index, element) { window.updateGamAdUrl(element, 'sidebar'); }); } }, false); var googletag = googletag || {}; googletag.cmd = googletag.cmd || []; googletag.cmd.push(function () { var desktopWidth = 1024; if (window.innerWidth >= desktopWidth) { window.dfp_visibility = 'desktop'; } else { window.dfp_visibility = 'mobile'; } var dfpDisplayConfiguration = { "prestitialEnabled": true, "leaderboardEnabled": true, "sidebarAdsEnabled": true, "visibility": window.dfp_visibility }; if (window.dfp_visibility == 'desktop') { if (typeof prestitialAds == 'object' && prestitialAds.pageIsPrestitialEligible()) { googletag.defineSlot('/21662595662/utilitydive/utilitydiveprestitial', [[500, 300], [640, 480]], 'paychekgoeshere').addService(googletag.pubads()); } if (dfpDisplayConfiguration.leaderboardEnabled) { googletag.defineSlot('/21662595662/utilitydive/utilitydiveleaderboard', [[970, 180], [728, 90], [970, 90]], 'dfp-leaderboard-desktop').addService(googletag.pubads()); googletag.pubads().addEventListener('slotRenderEnded', function (event) { if ((event.slot.getAdUnitPath() === '/21662595662/utilitydive/utilitydiveleaderboard' || event.slot.getAdUnitPath() === '/21662595662/utilitydive/utilitydiveleaderboard') && !event.isEmpty ) { $(window).blur(function () { if (document.activeElement === $('#dfp-leaderboard-desktop iframe')[0] || document.activeElement === $('#dfp-leaderboard-desktop iframe')[0]) { try { localStorage.setItem('leaderboard_signup_path', document.location.pathname); } catch (e) { // local storage could not be available due to privacy settings or something } } }); } }); } if (dfpDisplayConfiguration.sidebarAdsEnabled) { googletag.defineSlot('/21662595662/utilitydive/utilitydivehybrid1', [[300, 250], 'fluid', [160, 600]], 'dfp-hybrid1-desktop').addService(googletag.pubads()); } googletag.defineSlot('/21662595662/utilitydive/utilitydivehybrid2', [[300, 250], 'fluid'], 'dfp-hybrid2-desktop').addService(googletag.pubads()); googletag.defineSlot('/21662595662/utilitydive/utilitydivehybrid3', [[300, 250], 'fluid'], 'dfp-hybrid3-desktop').addService(googletag.pubads()); googletag.defineSlot('/21662595662/utilitydive/utilitydivehybrid4', [[300, 250], 'fluid'], 'dfp-hybrid4-desktop').addService(googletag.pubads()); googletag.defineSlot('/21662595662/utilitydive/utilitydivethankyouhybrid1', ['fluid'], 'dfp-thankyouhybrid1-desktop').addService(googletag.pubads()); googletag.defineSlot('/21662595662/utilitydive/utilitydivethankyouhybrid2', ['fluid'], 'dfp-thankyouhybrid2-desktop').addService(googletag.pubads()); } else { googletag.defineSlot('/21662595662/utilitydive/utilitydivehybrid1', [[300, 250], 'fluid'], 'dfp-hybrid1-mobile').addService(googletag.pubads()); googletag.defineSlot('/21662595662/utilitydive/utilitydivehybrid2', [[300, 250], 'fluid'], 'dfp-hybrid2-mobile').addService(googletag.pubads()); googletag.defineSlot('/21662595662/utilitydive/utilitydivehybrid3', [[300, 250], 'fluid'], 'dfp-hybrid3-mobile').addService(googletag.pubads()); googletag.defineSlot('/21662595662/utilitydive/utilitydivehybrid4', [[300, 250], 'fluid'], 'dfp-hybrid4-mobile').addService(googletag.pubads()); googletag.defineSlot('/21662595662/utilitydive/utilitydivethankyouhybrid1', ['fluid'], 'dfp-thankyouhybrid1-mobile').addService(googletag.pubads()); googletag.defineSlot('/21662595662/utilitydive/utilitydivethankyouhybrid2', ['fluid'], 'dfp-thankyouhybrid2-mobile').addService(googletag.pubads()); } googletag.pubads().setTargeting("topics", ["Building & Transportation Electrification","building-transportation-electrification","Electrification","Load Management, Efficiency & Demand Response","demand-response","Load Management"]); googletag.pubads().setTargeting("tags", ["utility-tag-demand-side-manageme","utility-tag-energy-efficiency","utility-tag-solar"]); if ((typeof divecounter !== "undefined") && (divecounter.getData().is_subscriber)) { googletag.pubads().setTargeting("is_subscriber", "yes"); } var site = window.location.host; googletag.pubads().setTargeting("site", site); var first_path = window.location.pathname.split( '/' )[1]; googletag.pubads().setTargeting("first_path", first_path); googletag.pubads().setTargeting("newspost_type", "Brief"); googletag.pubads().setTargeting("articleID", "730613"); googletag.pubads().setTargeting("slug", "building retrofit data sheds light on energy efficiency harvard study"); googletag.pubads().setTargeting("is_sponsored", "false" ); // Don't show skyscraper ads on full-width articles googletag.pubads().setTargeting("show_skyscraper", "true"); // Set ad targeting on the trendline to show the ads designated for it var isTopicPage = window.location.pathname.indexOf('/topic/') !== -1; if(isTopicPage) { googletag.pubads().setTargeting('is_topics_page', 'true'); } googletag.pubads().setCentering(true); googletag.pubads().collapseEmptyDivs(false); // Whether to collapse the slots even before the ads are fetched. googletag.pubads().enableSingleRequest(); googletag.enableServices(); }); </script> <script>window.fallbackAds = '[{\u0022adType\u0022: \u0022editorial_native_ad\u0022, \u0022link\u0022: \u0022/trendline/sustainability/179/?utm_source\u003DUD\u0026utm_medium\u003DNativeFB\u0026utm_campaign\u003DTrendlineFB\u0022, \u0022label\u0022: \u0022Trendline\u0022, \u0022image\u0022: \u0022https://imgproxy.divecdn.com/\u002DaXAO18Hig6E7tiO3bzPXW2sKPQovIshSFOoO9TgDBQ/g:ce/rs:fit:212:100/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNjQ3NzA1MjkuanBn.webp\u0022, \u0022attribution\u0022: \u0022\u0022, \u0022headline\u0022: \u0022How utilities are prioritizing sustainability efforts in 2025\u0022, \u0022ctaText\u0022: \u0022Access now\u0022, \u0022description\u0022: \u0022Companies are pursuing increasingly ambitous sustainability goals around clean energy, but integrating rising amounts of renewables, minimizing environmental impacts, and achieving carbon reduction targets can be challenging.\u0022}, {\u0022adType\u0022: \u0022editorial_native_ad\u0022, \u0022link\u0022: \u0022/trendline/virtual\u002Dpower\u002Dplants/519/?utm_source\u003DUD\u0026utm_medium\u003DNativeFB\u0026utm_campaign\u003DTrendlineFB\u0022, \u0022label\u0022: \u0022Trendline\u0022, \u0022image\u0022: \u0022https://imgproxy.divecdn.com/Sc88XUy48zsVoRfCeCzlmMleFBNfzLtjYfo2D62RiD0/g:ce/rs:fit:212:100/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNDU1ODY5Njk2LmpwZw\u003D\u003D.webp\u0022, \u0022attribution\u0022: \u0022\u0022, \u0022headline\u0022: \u0022Inside the rise of virtual power plants\u0022, \u0022ctaText\u0022: \u0022Access now\u0022, \u0022description\u0022: \u0022Virtual power plants and their ability to balance energy supply and demand are increasingly sought by utilities as electricity demand increases, but their lack of standardization remains a barrier.\u0022}]'</script> <script type="module" src="/static/js/dist/onBoardDiagnostics.bundle.js?290716050225" ></script>   <script src="https://d12v9rtnomnebu.cloudfront.net/informa_banner/techtarget-informa-banner.min.js"></script> </head> <body class=" flush-top article-page news topic- building-transportation-electrification topic- demand-response "> <techtarget-informa-banner theme="light" language="en" class="no-print"></techtarget-informa-banner>  <a href="#skip-link-target" class="button button--loud skip-nav-link" tabindex="1">Skip to main content</a>  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-55G8WRR" height="0" width="0" style="display:none;visibility:hidden"> </iframe></noscript>  <div id="prestitial-init" style="display: none;" class="prestitial-init"></div> <div id="prestitial-outer" class="prestitial content-overlay" style="display:none;"> <section class="site-menu" aria-label="Site menu"> <div class="site-menu-inner"> <img src="https://d12v9rtnomnebu.cloudfront.net/logo/publications/utility_black.svg" alt="Utility Dive" class="pub-logo"> </div> </section> <section class="paychek-page-wrapper row"> <div class="paychek-button large-4 large-push-8 columns"> <div> CONTINUE TO SITE ➞ </div> </div> <div class="paychek large-8 large-pull-4 columns"> <div id="paychekgoeshere"></div> <script data-cfasync="false" type="text/javascript"> if (typeof prestitialAds !== 'undefined' && prestitialAds.pageIsPrestitialEligible()) { prestitialAds.showOverlay(); } </script> <script type="text/javascript"> if (typeof prestitialAds !== 'undefined' && prestitialAds.pageIsPrestitialEligible()) { prestitialAds.initialize(7); prestitialAds.setPrestitialPossibleCookie(); var prestitial_ad_is_loaded = false; var prestitial_ad_is_empty = false; googletag.cmd.push(function () { googletag.pubads().addEventListener('slotRenderEnded', function (event) { if (event.slot.getAdUnitPath() == '/21662595662/utilitydive/utilitydiveprestitial') { if (event.isEmpty || prestitialAds.testingNoAd()) { prestitial_ad_is_empty = true; prestitialAds.closePrestitial(); } else { prestitial_ad_is_loaded = true; $.modal.close(); $('div#prestitial-init').hide(); // hide the all white overlay prestitialAds.setCookie( "_prestitialViewed", (new Date()).getTime(), prestitialAds.daysBetweenPrestitial ); } } }); }); if (prestitialAds.testingNoAd()) { } else { waitToLoadAds.push(function() { googletag.cmd.push(function () { googletag.display('paychekgoeshere'); }); }); } setTimeout( function () { if (!prestitial_ad_is_loaded && !prestitialAds.overrideTimeout()) { if (!prestitial_ad_is_empty) { // if the prestitial is already hidden, then don't hide it again. if (!prestitialAds.prestitialAdIsClosed()) { prestitialAds.closePrestitial(); prestitialAds.logClosePrestitialAdBy('failed'); } } } else if (!prestitialAds.overrideTimeout()) { setTimeout( function () { // if the prestitial is already hidden, then don't hide it again. if (!prestitialAds.prestitialAdIsClosed()) { prestitialAds.closePrestitial(); prestitialAds.logClosePrestitialAdBy('timeout'); } }, prestitialAds.timeoutSeconds() ); } else { } }, 2900 ); prestitialAds.sentPrestitialEligibleEvent(); } else if (typeof prestitialAds !== 'undefined' && !prestitialAds.pageIsPrestitialEligible()){ prestitialAds.closePrestitial(); } </script> </div> </section> </div> <div id="signup-inter" class="modal_dialog" style="display:none;"> <form id="signup-inter-form" class="form-basic" name="signup-inter-form" action="/signup/" method="POST"> <input type="hidden" name="signup_box_location" value="interstitial"> <input type="hidden" name="signup_initial_url_path" value=""> <h1> Don't miss tomorrow's electric utility industry news </h1> <p class="interstitial-text"> Let Utility Dive's free newsletter keep you informed, straight from your inbox. </p> <p class="form-error__message" id="interstitial-error"></p> <div id="form-interstitial"> <input type="email" name="email" placeholder="Work email address" class="email" required id="id_3a86c2_email"> <div id="newsletter-list-section"> <ul id="id_3a86c2_site_newsletters" class="list-no-bullets"> <li><label for="id_3a86c2_site_newsletters_0"><input type="checkbox" name="site_newsletters" value="2" class="list-no-bullets" id="id_3a86c2_site_newsletters_0"> Daily Dive <span class="secondary-label">M-F</span></label> </li> <li><label for="id_3a86c2_site_newsletters_1"><input type="checkbox" name="site_newsletters" value="41" class="list-no-bullets" id="id_3a86c2_site_newsletters_1"> Storage Weekly <span class="secondary-label">Every Tuesday</span></label> </li> <li><label for="id_3a86c2_site_newsletters_2"><input type="checkbox" name="site_newsletters" value="13" class="list-no-bullets" id="id_3a86c2_site_newsletters_2"> Load Management Weekly <span class="secondary-label">Every Wednesday</span> <p class="newsletter-partner">In partnership with</p><img class="newsletter-partner" loading="lazy" src="https://imgproxy.divecdn.com/HKJu6uVJPTX-d4gNw7YugKLYlbufnSe1qe3AQsV_fzc/raw:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL3RodW1ibmFpbHMvbmV3c2xldHRlcl9saXN0cy9QTE1BX2xvZ28ucG5n"></label> </li> <li><label for="id_3a86c2_site_newsletters_3"><input type="checkbox" name="site_newsletters" value="25" class="list-no-bullets" id="id_3a86c2_site_newsletters_3"> Renewable Energy Weekly <span class="secondary-label">Every Thursday</span> <p class="newsletter-partner">In partnership with</p><img class="newsletter-partner" loading="lazy" src="https://imgproxy.divecdn.com/1hVbXLb-Spzm3NFCLfhzZiKL8f7i8_ELUv7ZmwPTSYc/raw:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL3RodW1ibmFpbHMvbmV3c2xldHRlcl9saXN0cy9zZXBhX2xvZ28uanBn"></label> </li> </ul> </div> <div id="interstitial-consent-container"> <input name="user_consent" value="1" id="id_user_consent" type="checkbox"> <span> By signing up to receive our newsletter, you agree to our <a href="https://www.techtarget.com/terms-of-use/" target="_blank">Terms of Use</a> and <a href="https://www.techtarget.com/privacy-policy/" target="_blank">Privacy Policy</a>. You can unsubscribe at anytime. </span> </div> </div> <input id="signup-inter-submit" class="email_submit submit button" type="submit" data-role="none" value="Subscribe today"> </form> </div>  <div class="leaderboard-wrap"> <div class="hide-small show-large"> <div data-container-ad-unit-id="/21662595662/utilitydive/utilitydiveleaderboard-desktop"></div> <div id='dfp-leaderboard-desktop' style="min-height: 90px"> <script> waitToLoadAds.push(function() { googletag.cmd.push(function() { if (window.dfp_visibility == 'desktop') { googletag.display('dfp-leaderboard-desktop'); } }) }); </script> </div> </div> </div> <div class="page-container"> <header role="banner"> <nav id="top" class="site-menu" aria-label="Site menu"> <div class="site-menu-inner">  <div class="pub-logo-wrapper"> <a href="/" class="analytics t-dash-navigation"> <img class="pub-logo" src="https://d12v9rtnomnebu.cloudfront.net/logo/publications/utility_black.svg" alt="Utility Dive" height="28"> </a> </div>  <div class="menu-content-wrapper"> <ul class="desktop-menu-main"> <li> <a href="/deep-dive/" class="nav-menu-item analytics t-deepdive-navigation">Deep Dive</a> </li> <li> <a href="/opinion/" class="nav-menu-item analytics t-opinion-navigation">Opinion</a> </li> <li> <a href="/library/" class="nav-menu-item analytics t-library-navigation">Library</a> </li> <li> <a href="/events/" class="nav-menu-item analytics t-events-navigation">Events</a> </li> <li> <a href="/press-release/" class="nav-menu-item analytics t-press-releases-navigation">Press Releases</a> </li> <li class="topics top-nav-dropdown-item"> <button class="nav-menu-item topics-dropdown-item"> Topics <span class="dropdown-toggle-arrow"></span> </button> </li> </ul>  <a href="/signup/?signup_location=header" class="nav-menu-item nav-signup-button mobile-nav-signup-button analytics t-signup-navigation button"> Sign up </a> <button class="mobile-menu-toggle"> <img src="/static/img/menu_icons/menu.svg?273117231121" alt="menu" loading="lazy"> </button>  <ul class="desktop-menu-sub list-no-bullets"> <li> <button class="search-toggle search-button-front analytics t-search-navigation-top"> <img src="/static/img/menu_icons/search.svg?320116291121" alt="search" width="16" height="16" loading="lazy"> <span class="sub-link">Search</span> </button> </li> <li> <a href="/signup/?signup_location=header" class="nav-menu-item nav-signup-button desktop-nav-signup-button analytics t-signup-navigation button"> <img src="/static/img/email_icons/mail.svg?273117231121" width="16" height="11" loading="lazy" alt=""> Sign up </a> </li> </ul> </div> </div> </nav> </header> <div class="menu-search js-search-hide"> <div class="menu-search-inner-wrapper row"> <form action="/search/" method="GET" data-ajax="false"> <label for="search-desktop"> <span class="screen-reader-text search">Search</span> </label> <input id="search-desktop" type="search" name="q" placeholder="Search" data-role="none"> <button type="submit" value="" data-role="none" class="search-button-front analytics t-search-navigation-drawer"> <img src="/static/img/menu_icons/search.svg?320116291121" alt="search" height="16" width="16" loading="lazy"> </button> <img class="close" src="/static/img/menu_icons/close.svg?273117231121" width="16" height="16" alt="close search" loading="lazy"> </form> </div> </div> <nav class="topics menu-bar" aria-label="Menu bar"> <ul class="list-no-bullets"> <li> <a class="analytics t-topic-navigation-Generation" href="/topic/Generation/">Generation</a> </li> <li> <a class="analytics t-topic-navigation-transmission-distribution" href="/topic/transmission-distribution/">T&D</a> </li> <li> <a class="analytics t-topic-navigation-grid-security-reliability" href="/topic/grid-security-reliability/">Grid Reliability</a> </li> <li> <a class="analytics t-topic-navigation-building-transportation-electrification" href="/topic/building-transportation-electrification/">Electrification</a> </li> <li> <a class="analytics t-topic-navigation-demand-response" href="/topic/demand-response/">Load Management</a> </li> <li> <a class="analytics t-topic-navigation-solar" href="/topic/solar/">Renewables</a> </li> <li> <a class="analytics t-topic-navigation-storage" href="/topic/storage/">Storage</a> </li> <li> <a class="analytics t-topic-navigation-distributed-energy" href="/topic/distributed-energy/">DER</a> </li> <li> <a class="analytics t-topic-navigation-policy" href="/topic/policy/">Regs</a> </li> <li> <a class="analytics t-topic-navigation-market-news" href="/topic/market-news/">Corp News</a> </li> </ul> </nav> <script type="module" src="/static/js/dist/navSignupHelper.bundle.js?290716050225" ></script> <script> window.siteName = 'Utility Dive'; </script> <div class="search-overlay"></div> <div class="page-wrapper"> <div class="page-inner-wrapper" id="skip-link-target"> <div class="row"> <div class="medium-10 medium-centered large-12"> <section id="main-content" class="main-content large-8 columns"> <link rel="preload" as="image" href="https://imgproxy.divecdn.com/qUOHIHOZIBvc9A3ZA9umQn9XyxzqQDYxeEcYxwVNghA/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp" imagesrcset="https://imgproxy.divecdn.com/2lMxmdfvi0FhW7uI5dqFrVqIu0z23FJLVYBCzARU6Jw/g:ce/rs:fill:400:225:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp 400w, https://imgproxy.divecdn.com/oyiAiwt2GUv9Lvu8c1CEzmBwFvPnklVKnQydeu_txCk/g:ce/rs:fill:800:450:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp 800w, https://imgproxy.divecdn.com/qUOHIHOZIBvc9A3ZA9umQn9XyxzqQDYxeEcYxwVNghA/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp 1200w, https://imgproxy.divecdn.com/DLU5trvxo2S0KWPdyAUBYJ8nQZ-aRZoVLJCUzXoGHIk/g:ce/rs:fill:1600:900:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp 1600w" imagesizes="(min-width: 64em) 60vw, 100vw" alt=""> <article class="brief"> <div class="first-page-pdf">  <div class="printed-branding"> <span class="promoted-branded-copy">An article from</span> <img src="https://d12v9rtnomnebu.cloudfront.net/logo/printer_friendly/utilitydive.jpg" alt="site logo"> </div> <div class="article-title-wrapper"> <div class="post-label-wrapper"> <span class="post-label post-label--medium "> Dive Brief </span> </div> <h1 class="display-heading-04"> Building retrofit data sheds light on energy efficiency: Harvard study </h1> <p>A two-year dataset on a residential-to-office retrofit shows how low-energy and passive building systems can enhance performance in future projects, according to a paper published in Scientific Data.</p> </div> <div class="byline"> <div class="article-byline"> <div class="date date-bottom-border"> <span class="published-info"> Published Oct. 23, 2024 </span> </div> <div class="byline-row "> <div class="author "> <div class="author-row author-row-flex"> <a href="https://www.facilitiesdive.com/editors/namarnath/"> <img class="author-img-round analytics t-article-byline-author" src="https://d1b6lhn2ymmy1x.cloudfront.net/journalist-headshots/amarnath-nish-circle-150x150.png" alt="Nish Amarnath's headshot"> </a> <div class="author-name author-name-with-headshot"> <a rel="author" href="https://www.facilitiesdive.com/editors/namarnath/" class="analytics t-article-byline-author">Nish Amarnath</a> <span class="author-title">Editor</span> </div> </div> </div> <div class="social-share"> <ul class="social-icon-list"> <li> <a href="http://www.linkedin.com/shareArticle?mini=true&url=https%3A//www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/&title=Building%20retrofit%20data%20sheds%20light%20on%20energy%20efficiency%3A%20Harvard%20study" aria-label="Share article to Linkedin" class="social-icon analytics t-article-byline-social-linkedin"> <img src="/static/img/social_icons/article_page/linkedin.svg?092716141024" alt="Post to LinkedIn"> <span class="social-icon__text">post</span> </a> </li> <li> <a href="https://www.facebook.com/sharer/sharer.php?u=https%3A//www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/" aria-label="Share article to Facebook" class="social-icon analytics t-article-byline-social-facebook"> <img src="/static/img/social_icons/article_page/facebook.svg?440116200824" alt="Share on Facebook"> <span class="social-icon__text">share</span> </a> </li> <li> <a href="https://twitter.com/intent/tweet?text=Building%20retrofit%20data%20sheds%20light%20on%20energy%20efficiency%3A%20Harvard%20study%20https%3A//www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/%20via%20@UtilityDive" aria-label="Share article to X/Twitter" class="social-icon analytics t-article-byline-social-twitter"> <img src="/static/img/social_icons/article_page/x.svg?092716141024" alt="Post on X"> <span class="social-icon__text">post</span> </a> </li> <li> <a href="javascript:window.print()" aria-label="Print article" class="social-icon js-social-icon-print"> <img src="/static/img/social_icons/article_page/print.svg?440116200824" alt="Print this page"> <span class="social-icon__text">print</span> </a> </li> <li> <a href="/cdn-cgi/l/email-protection#f3cca0869199969087ceb1869a9f979a9d94d6c1c3819687819c959a87d6c1c397928792d6c1c3809b969780d6c1c39f9a949b87d6c1c39c9dd6c1c3969d9681948ad6c1c39695959a909a969d908ad6c0b2d6c1c3bb928185928197d6c1c3808786978ad5929e83c8b19c978ace9b87878380d6c0b2dcdc848484dd86879a9f9a878a979a8596dd909c9edc9d968480dc91869a9f979a9d94de819687819c959a87de97928792de809b969780de9f9a949b87de9c9dde969d9681948ade9695959a909a969d908ade9b928185928197de808786978adcc4c0c3c5c2c0dc" aria-label="Share article with email" class="social-icon analytics t-article-byline-social-email"> <img src="/static/img/social_icons/article_page/email.svg?092716141024" alt="Email this page"> <span class="social-icon__text">email</span> </a> </li> <li> <a href="/selfservice/article-licensing/submit/?newspostUrl=https://www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/" aria-label="License article" class="social-icon js-social-icon-license analytics t-article-byline-social-licensing"> <img src="/static/img/social_icons/article_page/cart.svg?092716141024" alt="License this article"> <span class="social-icon__text">license</span> </a> </li> </ul> </div> </div> </div> </div> <figure class="inside_story"> <div class="figure_content article-hero-img"> <img class="" src="https://imgproxy.divecdn.com/qUOHIHOZIBvc9A3ZA9umQn9XyxzqQDYxeEcYxwVNghA/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp" width="1200" height="675" srcset="https://imgproxy.divecdn.com/2lMxmdfvi0FhW7uI5dqFrVqIu0z23FJLVYBCzARU6Jw/g:ce/rs:fill:400:225:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp 400w, https://imgproxy.divecdn.com/oyiAiwt2GUv9Lvu8c1CEzmBwFvPnklVKnQydeu_txCk/g:ce/rs:fill:800:450:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp 800w, https://imgproxy.divecdn.com/qUOHIHOZIBvc9A3ZA9umQn9XyxzqQDYxeEcYxwVNghA/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp 1200w, https://imgproxy.divecdn.com/DLU5trvxo2S0KWPdyAUBYJ8nQZ-aRZoVLJCUzXoGHIk/g:ce/rs:fill:1600:900:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp 1600w" sizes="(min-width: 64em) 60vw, 100vw" alt="A facade of HouseZero retrofitted from a pre-1940s house into a prototype office building." > </div> <figcaption class="inside_story_caption"> <span class="caption_text"> A facade of HouseZero, a prototype office building retrofitted from a pre-1940s house. The study focuses on data from 189 sensors and meters closely related to the building’s main operational performance. Photo credit: Michael Grimm </span> <span class="source_text"> Retrieved from <a href="https://www.google.com/url?sa=i&url=https%3A%2F%2Fharvardcgbc.org%2Fhousezero%2F&psig=AOvVaw3nLO_yQlHZTXg3N5_lGVZR&ust=1729698063452000&source=images&cd=vfe&opi=89978449&ved=0CBcQjhxqFwoTCNiqpcqpookDF" target="_blank">Harvard Center for Green Buildings and Cities</a> on October 22, 2024 </span> </figcaption> </figure> </div> <div class="row"> <div class="article-large-12 columns article-wrapper"> <div class="print-wrapper"> <div class="cloned-story"> <p>First published on</p> <a href='http://www.facilitiesdive.com' class="analytics t-article-byline-cloned" target="_blank"> <img class="cloned-image" src="https://d12v9rtnomnebu.cloudfront.net/logo/publications/facilities_black.png" alt="Facilities Dive"> </a> </div> <div class=" large medium article-body"> <h3>Dive Brief:</h3> <ul> <li><span><span><span><span><span><span>Retrofitting buildings with low-energy and passive technologies can help the building sector </span></span></span></span></span></span><a href="https://www.nature.com/articles/s41597-024-03770-7#Tab3"><span><span><span><span><span><span><span><span>achieve carbon neutrality</span></span></span></span></span></span></span></span></a><span><span><span><span><span><span>, according to a research paper authored by eight researchers from Harvard University. Their study presents a two-year dataset on an ultra-low energy office building retrofitted from a pre-1940s house. </span></span></span></span></span></span></li> <li><span><span><span><span><span>The 356-square-meter building, known as HouseZero, features systems like automated natural ventilation, a ground-source heat pump and activated building systems, per the paper published in Scientific Data on Aug. 28. The building’s annual energy consumption dropped <span>5.7%</span> from 38.5 kWh/square meter in the first year to 36.3 kWh/square meter in the second year.</span></span></span></span></span></li> <li><span><span><span><span><span><span>With this high-fidelity dataset, users can enhance their understanding of how such integrated low-energy and passive building technologies operate in a real building and develop advanced methods and algorithms to improve the design and operation of these systems, the study suggests. </span></span></span></span></span></span></li> </ul> <div class="hybrid-ad-wrapper show-small hide-large"> <div class="hybrid-ad-inner-wrapper"> <div class="show-small hide-large"> <div data-container-ad-unit-id="/21662595662/utilitydive/utilitydivehybrid1-mobile"></div> <div id="dfp-hybrid1-mobile"> <script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script> waitToLoadAds.push(function() { googletag.cmd.push(function() { if (window.dfp_visibility == 'mobile' ) { googletag.display('dfp-hybrid1-mobile'); googletag.pubads().addEventListener('slotRenderEnded', function (event) { var adUnitPath = '/21662595662/utilitydive/utilitydivehybrid1'; var onProformative = false; if (onProformative && event.slot.getAdUnitPath() === adUnitPath && !event.isEmpty ) { var adUnitPathWithVisibility = adUnitPath + '-mobile'; var selector = '.pf-comments__ad-wrapper [data-container-ad-unit-id="' + adUnitPathWithVisibility + '"]'; if (!$(selector).closest('.pf-comments__ad-wrapper').hasClass('borders')) { $(selector).closest('.pf-comments__ad-wrapper').addClass('borders') } } }); } }); }); </script> </div> </div> </div> </div> <div class="hybrid-ad-wrapper hide-small show-large"> <div class="hybrid-ad-inner-wrapper"> <div class="hide-small show-large"> <div data-container-ad-unit-id="/21662595662/utilitydive/utilitydivehybrid2-desktop"></div> <div id="dfp-hybrid2-desktop"> <script> waitToLoadAds.push(function() { googletag.cmd.push(function() { if (window.dfp_visibility == 'desktop' ) { googletag.display('dfp-hybrid2-desktop'); googletag.pubads().addEventListener('slotRenderEnded', function (event) { var adUnitPath = '/21662595662/utilitydive/utilitydivehybrid2'; var onProformative = false; if (onProformative && event.slot.getAdUnitPath() === adUnitPath && !event.isEmpty ) { var adUnitPathWithVisibility = adUnitPath + '-desktop'; var selector = '.pf-comments__ad-wrapper [data-container-ad-unit-id="' + adUnitPathWithVisibility + '"]'; if (!$(selector).closest('.pf-comments__ad-wrapper').hasClass('borders')) { $(selector).closest('.pf-comments__ad-wrapper').addClass('borders') } } }); } }); }); </script> </div> </div> </div> </div> <h3>Dive Insight:</h3> <p><span><span><span><span><span><span>While comprehensive datasets consisting of factors such as energy consumption, occupancy, HVAC operations and indoor environment have been proposed, a very limited number of datasets is reported for ultra-low energy buildings with low-energy and passive technologies, the researchers said.</span></span></span></span></span></span></p> <p><span><span><span><span><span><span>HouseZero has four stories, including a ground-floor basement with a large conference room, a first floor with semi-open spaces and a second floor with an open workspace designed for 16 occupants, per the paper. The third floor has one laboratory designed to conduct room-scale experiments with a functionality that represents the building’s systems and operation, as well as the capability to experiment with different facade systems, the researchers said. </span></span></span></span></span></span></p> <p><span><span><span><span><span><span>The study focuses on data from 189 sensors and meters closely related to the building’s main operational performance. Outdoor sensors include two localized weather stations and nine facade temperature sensors on the building’s facades and measure key metrics such as air temperature, relative humidity, CO2 levels and facade temperatures. Indoor sensors monitor zone-level air temperature, CO2, relative humidity and slab temperature, while a net meter validated both photovoltaic production and loads, they said. </span></span></span></span></span></span></p> <p><span><span><span><span><span><span>IT loads were the most dominant energy users in both years, followed by heating and plug loads, the paper says. During summer, IT and plug loads contributed the most to total energy demand, while cooling and other loads remained stable. During winter, heating energy consumption was the highest and varied according to slab temperatures, with IT loads as the second largest contributor, the researchers said. </span></span></span></span></span></span></p> <p><span><span><span><span><span><span>Indoor CO2 levels followed a diurnal cycle, rising during office hours and peaking in the afternoon, indicating a correlation with occupancy. Relative humidity remained stable with minor fluctuations, potentially linked to the building’s occupancy patterns, according to the study.</span></span></span></span></span></span></p> <p><span><span><span><span><span><span>While monthly PV production and solar radiation followed the same trend throughout 2023, a new inverter with higher efficiency installed in early 2023 contributed to improved PV efficiency, the study noted. </span></span></span></span></span></span></p> <p><span><span><span><span><span><span>The dataset “contributes to the development of sustainable building practices,” the researchers said. Their dataset, however, is tied to unique features of the HouseZero building such as its occupancy, design and construction materials, as well as local weather conditions and sensor-specific limitations, including their location and the accuracy of their readings, the researchers noted. </span></span></span></span></span></span><span><span><span><span><span><span><span>They cautioned that these factors could limit the generalizability of the study’s findings to other contexts, including buildings with different designs or usage patterns.</span></span></span></span></span></span></span></p> <p><em>Interested in more facilities management news? </em><em><a href="https://www.facilitiesdive.com/link/6320/?utm_campaign=Facilities-Dive-Clones-In-Article-Promo08082024" rel="noopener noreferrer" target="_blank">Sign up for Facilities Dive’s newsletter today</a></em><em>.</em></p> </div> <div class="reading-list recommended-reading"> <h3 class="sidebar-box__header reading-list__header">Recommended Reading</h3> <ul class="list-no-bullets"> <li class="reading-list__item"> <a href="https://www.facilitiesdive.com/news/retrofits-buildings-operational-embodied-carbon-emissions-new-construction/726596/" target="_blank" class="reading-list__link analytics t-article-end-recommended"> Retrofits more effective in cutting operational, embodied carbon emissions than new builds: study </a> <span class="label label--soft"> <img src="/static/img/offsite_black.png?102717100918" class="off-site-link" alt="offsite link" width="12" height="12" /> <span>Facilities Dive</span> </span> </li> <li class="reading-list__item"> <a href="https://www.facilitiesdive.com/news/thermal-energy-networks-water-use-buildings-heating-cooling-study/723452/" target="_blank" class="reading-list__link analytics t-article-end-recommended"> Thermal energy networks can slash water use in buildings, study shows </a> <span class="label label--soft"> <img src="/static/img/offsite_black.png?102717100918" class="off-site-link" alt="offsite link" width="12" height="12" /> <span>Facilities Dive</span> </span> </li> </ul> </div> <div class="post-article-wrapper"> <div class="share-buttons"> <ul class="social-button-list"> <li> <a href="http://www.linkedin.com/shareArticle?mini=true&url=https%3A//www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/&title=Building%20retrofit%20data%20sheds%20light%20on%20energy%20efficiency%3A%20Harvard%20study" class="social-button analytics t-article-end-social-linkedin" title="Post"> <img src="/static/img/social_icons/article_page/linkedin.svg?092716141024" alt="Post to LinkedIn"> </a> </li> <li> <a href="https://www.facebook.com/sharer/sharer.php?u=https%3A//www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/" class="social-button analytics t-article-end-social-facebook" title="Share"> <img src="/static/img/social_icons/article_page/facebook.svg?440116200824" alt="Share on Facebook"> </a> </li> <li> <a href="https://twitter.com/intent/tweet?text=Building%20retrofit%20data%20sheds%20light%20on%20energy%20efficiency%3A%20Harvard%20study%20https%3A//www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/%20via%20@UtilityDive" class="social-button analytics t-article-end-social-twitter" title="Post"> <img src="/static/img/social_icons/article_page/x.svg?092716141024" alt="Post to X"> </a> </li> <li> <a href="javascript:window.print()" class="social-button js-social-button-print" title="Print"> <img src="/static/img/social_icons/article_page/print.svg?440116200824" alt="Print this page"> </a> </li> <li> <a href="/cdn-cgi/l/email-protection#f9c6aa8c9b939c9a8dc4bb8c90959d90979edccbc98b9c8d8b969f908ddccbc99d988d98dccbc98a919c9d8adccbc995909e918ddccbc99697dccbc99c979c8b9e80dccbc99c9f9f909a909c979a80dccab8dccbc9b1988b8f988b9ddccbc98a8d8c9d80df989489c2bb969d80c4918d8d898adccab8d6d68e8e8ed78c8d9095908d809d908f9cd79a9694d6979c8e8ad69b8c90959d90979ed48b9c8d8b969f908dd49d988d98d48a919c9d8ad495909e918dd49697d49c979c8b9e80d49c9f9f909a909c979a80d491988b8f988b9dd48a8d8c9d80d6cecac9cfc8cad6" class="social-button analytics t-article-end-social-email" title="Email"> <img src="/static/img/social_icons/article_page/email.svg?092716141024" alt="Email this page"> </a> </li> <li class="article-licensing-item"> <a href="/selfservice/article-licensing/submit/?newspostUrl=https://www.utilitydive.com/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/" class="article-licensing-button js-social-button-license analytics t-article-end-social-licensing" title="License"> <img src="/static/img/social_icons/article_page/cart.svg?092716141024" alt="License this article"> <span class="social-button__text">purchase licensing rights</span> </a> </li> </ul> </div> <div class="post-article-topics"> <div> <span>Filed Under:</span> <span><a class="topic analytics t-article-end-topic" href="/topic/building-transportation-electrification/">Building & Transportation Electrification, </a></span> <span><a class="topic analytics t-article-end-topic" href="/topic/demand-response/">Load Management, Efficiency & Demand Response</a></span> </div> </div> </div> </div> </div> </div> </article> <section class="signup call-out elevated-footer standard-newspost-mobile show-small show-medium hide-large"> <div class="row"> <div class="large-11 medium-11 medium-centered columns footer-signup" style="display: flex"> <div class="footer-signup__content"> <h3>Utility Dive news delivered to your inbox</h3> <p class="subhead">Get the free daily newsletter read by industry experts</p> <form class="form js-form-email-validate" name="signup" action="/signup/" method="POST"> <label for="id_af72a5_email" class="email-input js-email-input"> <span class="screen-reader-text">Email:</span> <input type="email" name="email" placeholder="Work email address" class="email" required id="id_af72a5_email"> </label> <input type="hidden" name="signup_box_location" value="elevated_footer"> <input type="hidden" name="signup_initial_url_path" value="/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/"> <input type="hidden" name="signup_internal_referrer"> <input type="hidden" name="signup_external_referrer"> <input type="hidden" name="referral_url"> <input type="hidden" name="js_enabled" value="0" id="id_af72a5_js_enabled"> <ul class="signup-list list-no-bullets"> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-elevated_footer-checkbox-2" type="checkbox" name="site_newsletters" value="2" class="checkbox" /> <label for="newsletter-elevated_footer-checkbox-2"> <span class="newsletter-title">Daily Dive</span> <span class="secondary-label">M-F</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-elevated_footer-checkbox-41" type="checkbox" name="site_newsletters" value="41" class="checkbox" /> <label for="newsletter-elevated_footer-checkbox-41"> <span class="newsletter-title">Storage Weekly</span> <span class="secondary-label">Every Tuesday</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-elevated_footer-checkbox-13" type="checkbox" name="site_newsletters" value="13" class="checkbox" /> <label for="newsletter-elevated_footer-checkbox-13"> <span class="newsletter-title">Load Management Weekly</span> <span class="secondary-label">Every Wednesday</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-elevated_footer-checkbox-25" type="checkbox" name="site_newsletters" value="25" class="checkbox" /> <label for="newsletter-elevated_footer-checkbox-25"> <span class="newsletter-title">Renewable Energy Weekly</span> <span class="secondary-label">Every Thursday</span> </label> </li> <li> <label><span class="screen-reader-text">Select user consent:</span></label> <input type="checkbox" name="user_consent" id="id_user_consent-elevated_footer" value="1" class="checkbox"/> <label for="id_user_consent-elevated_footer"> <span class="signup-user-consent_box"> <span> By signing up to receive our newsletter, you agree to our <a href="https://www.techtarget.com/terms-of-use/" target="_blank">Terms of Use</a> and <a href="https://www.techtarget.com/privacy-policy/" target="_blank">Privacy Policy</a>. You can unsubscribe at anytime. </span> </span> </label> </li> </ul> <button class="button button--medium signup-button" type="submit" value="Sign up">Sign up</button> <script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script type="module" src="/static/js/dist/sendEmailToLytics.bundle.js?290716050225" ></script> <label class="error email_error" style="display:none;">A valid email address is required.</label> <label class="error newsletter-error" style="display:none;">Please select at least one newsletter.</label> </form> </div> <div class="footer-signup__image"> <img class="desktop-image" src="/static/img/article-signup.png?320916100822" width="275" height="275" loading="lazy" alt="Daily Dive newsletter example"> </div> </div> </div> </section> <div class="sidebar-box hide-large editors-pick-footer-mobile"> <h3 class="sidebar-box__header"> Editors' picks </h3> <ul class="feed"> <li class="row feed__item"> <div class="medium-5 columns"> <figure class="feed__image-container"> <a class="feed__image analytics t-edfooter-edpicks-1" href="/news/dot-suspends-ev-electric-vehicle-charging-network/739521/"> <img class="" src="https://imgproxy.divecdn.com/CNrNPtvJ49HyKVg3ZnSdmWLLODmp6OuQ4L7YXijhit0/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzMwNDIwOTMtc21hbGwuanBn.webp" width="1200" height="675" srcset="https://imgproxy.divecdn.com/j7DspzLFmlif7tdS9KI5PB_h-_-X1ODX7owmVtX7LGw/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzMwNDIwOTMtc21hbGwuanBn.webp 300w, https://imgproxy.divecdn.com/bcH35ei1URqZCHsqz5iUKmRuodDGUHTi2-f_YkBt_pw/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzMwNDIwOTMtc21hbGwuanBn.webp 600w, https://imgproxy.divecdn.com/CNrNPtvJ49HyKVg3ZnSdmWLLODmp6OuQ4L7YXijhit0/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzMwNDIwOTMtc21hbGwuanBn.webp 1200w" sizes="(min-width: 40em ) 25vw, 100vw" alt="Image of a dusty road." loading="lazy" > </a> <figcaption> <img class="feed__attribution-icon" src="/static/images/info-icon.png?234917240220" width="16" height="16" alt="Image attribution tooltip" tabindex="0"> <div class="feed__attribution">Hal Bergman via Getty Images</div> <img class="feed__attribution-icon" src="/static/images/info-icon.png?234917240220" width="16" height="16" alt="Image attribution tooltip" tabindex="-1"> </figcaption> </figure> </div> <div class="medium-7 columns"> <h3 class="feed__title feed__title--display"> <a href="/news/dot-suspends-ev-electric-vehicle-charging-network/739521/" class="analytics t-edfooter-edpicks-1"> DOT suspends Biden’s $5B electric vehicle charging network effort </a> </h3> <p class="feed__description hide-small show-large">Most of the National Electric Vehicle Infrastructure funds have already been awarded to states, however, and some observers say the Trump administration cannot end the program with just a memo.</p> <div class="secondary-label"> By Robert Walton • <span class="secondary-label">Feb. 7, 2025</span> </div> </div> </li> <li class="row feed__item"> <div class="medium-5 columns"> <figure class="feed__image-container"> <a class="feed__image analytics t-edfooter-edpicks-2" href="/news/fast-track-grid-interconnection-ferc-pjm-house-senate-bill/739523/"> <img class="" src="https://imgproxy.divecdn.com/blXaGfho7KhwFsw6ZFi5ozbDMzWRwvGTEyGM3Y6ezMA/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9ndWVybnNleV9wb3dlcl9wbGFudC5qcGc=.webp" width="1200" height="675" srcset="https://imgproxy.divecdn.com/T_cNdQPD4o3f5OgVwY6fkztwlfGBwoSoyFz9aR2QID8/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9ndWVybnNleV9wb3dlcl9wbGFudC5qcGc=.webp 300w, https://imgproxy.divecdn.com/Yh6HHIZb5M2AIUXDWhhrQl5jIWOvQ7XMrw93461OE4s/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9ndWVybnNleV9wb3dlcl9wbGFudC5qcGc=.webp 600w, https://imgproxy.divecdn.com/blXaGfho7KhwFsw6ZFi5ozbDMzWRwvGTEyGM3Y6ezMA/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9ndWVybnNleV9wb3dlcl9wbGFudC5qcGc=.webp 1200w" sizes="(min-width: 40em ) 25vw, 100vw" alt="An industrial complex with three smokestacks in a rural setting." loading="lazy" > </a> <figcaption> <img class="feed__attribution-icon" src="/static/images/info-icon.png?234917240220" width="16" height="16" alt="Image attribution tooltip" tabindex="0"> <div class="feed__attribution">Courtesy of GE Vernova</div> <img class="feed__attribution-icon" src="/static/images/info-icon.png?234917240220" width="16" height="16" alt="Image attribution tooltip" tabindex="-1"> </figcaption> </figure> </div> <div class="medium-7 columns"> <h3 class="feed__title feed__title--display"> <a href="/news/fast-track-grid-interconnection-ferc-pjm-house-senate-bill/739523/" class="analytics t-edfooter-edpicks-2"> RTOs could fast-track dispatchable generation under House, Senate bills </a> </h3> <p class="feed__description hide-small show-large">The legislation would let dispatchable generation jump ahead in interconnection queues after a review by the Federal Energy Regulatory Commission.</p> <div class="secondary-label"> By Ethan Howland • <span class="secondary-label">Feb. 7, 2025</span> </div> </div> </li> </ul> </div> </section> <aside class="sidebar large-4 columns"> <div class="hybrid-ad-wrapper hide-small show-large"> <div class="hybrid-ad-inner-wrapper"> <div class="hide-small show-large"> <div data-container-ad-unit-id="/21662595662/utilitydive/utilitydivehybrid1-desktop"></div> <div id='dfp-hybrid1-desktop'> <script> waitToLoadAds.push(function() { googletag.cmd.push(function() { if (window.dfp_visibility == 'desktop' ) { googletag.display('dfp-hybrid1-desktop'); googletag.pubads().addEventListener('slotRenderEnded', function (event) { var adUnitPath = '/21662595662/utilitydive/utilitydivehybrid1'; var onProformative = false; if (onProformative && event.slot.getAdUnitPath() === adUnitPath && !event.isEmpty ) { var adUnitPathWithVisibility = adUnitPath + '-desktop'; var selector = '.pf-comments__ad-wrapper [data-container-ad-unit-id="' + adUnitPathWithVisibility + '"]'; if (!$(selector).closest('.pf-comments__ad-wrapper').hasClass('borders')) { $(selector).closest('.pf-comments__ad-wrapper').addClass('borders') } } }); } }); }); </script> </div> </div> </div> </div> <div class="signup sidebar-signup-box hide-small show-large" data-box-priority="0"> <h3 class="sidebar-signup-box__header">Get the free newsletter</h3> <p class="sidebar-signup-box__description">Subscribe to Utility Dive for top news, trends & analysis</p> <form class="form js-form-email-validate" name="signup" action="/signup/" method="POST"> <label for="id_b4e4b8_email" class="email-input js-email-input"> <span class="screen-reader-text">Email:</span> <input type="email" name="email" placeholder="Work email address" class="email" required id="id_b4e4b8_email"> </label> <input type="hidden" name="signup_box_location" value="sidebar"> <input type="hidden" name="signup_initial_url_path" value="/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/"> <input type="hidden" name="signup_internal_referrer"> <input type="hidden" name="signup_external_referrer"> <input type="hidden" name="referral_url"> <input type="hidden" name="js_enabled" value="0" id="id_b4e4b8_js_enabled"> <ul class="signup-list list-no-bullets"> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-sidebar-checkbox-2" type="checkbox" name="site_newsletters" value="2" class="checkbox" /> <label for="newsletter-sidebar-checkbox-2"> <span class="newsletter-title">Daily Dive</span> <span class="secondary-label">M-F</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-sidebar-checkbox-41" type="checkbox" name="site_newsletters" value="41" class="checkbox" /> <label for="newsletter-sidebar-checkbox-41"> <span class="newsletter-title">Storage Weekly</span> <span class="secondary-label">Every Tuesday</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-sidebar-checkbox-13" type="checkbox" name="site_newsletters" value="13" class="checkbox" /> <label for="newsletter-sidebar-checkbox-13"> <span class="newsletter-title">Load Management Weekly</span> <span class="secondary-label">Every Wednesday</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-sidebar-checkbox-25" type="checkbox" name="site_newsletters" value="25" class="checkbox" /> <label for="newsletter-sidebar-checkbox-25"> <span class="newsletter-title">Renewable Energy Weekly</span> <span class="secondary-label">Every Thursday</span> </label> </li> <li> <label><span class="screen-reader-text">Select user consent:</span></label> <input type="checkbox" name="user_consent" id="id_user_consent-sidebar" value="1" class="checkbox"/> <label for="id_user_consent-sidebar"> <span class="signup-user-consent_box"> <span> By signing up to receive our newsletter, you agree to our <a href="https://www.techtarget.com/terms-of-use/" target="_blank">Terms of Use</a> and <a href="https://www.techtarget.com/privacy-policy/" target="_blank">Privacy Policy</a>. You can unsubscribe at anytime. </span> </span> </label> </li> </ul> <button class="button button--medium signup-button" type="submit" value="Sign up">Sign up</button> <script type="module" src="/static/js/dist/sendEmailToLytics.bundle.js?290716050225" ></script> <label class="error email_error" style="display:none;">A valid email address is required.</label> <label class="error newsletter-error" style="display:none;">Please select at least one newsletter.</label> </form> </div> <div class="subscriber-demographics demographics-form" id="demographics-box-sidebar"></div> <script src="/static/js/subscriberDemographicsForm.js?450216090125"></script> <script> var siteName = 'Utility Dive' || null; if (siteName) { setupFormCallbackAndCreateFormIfSub(siteName, 'sidebar'); } </script> <div class="sidebar-box" data-box-priority="2"> <h3 class="sidebar-box__header sidebar-box__header--loud"> Most Popular </h3> <ol class="sidebar-box-list sidebar-box-list--ordered"> <li class="sidebar-box-list__item sidebar-box-list__item--ordered flex">  <div class="sidebar-box-list__image-container"> <a class="analytics t-most-popular-sidebar-item-1 hide-small show-large" href="/news/electric-transformer-shortage-nrel-niac/738947/"> <img class="sidebar-box-list__image" src="https://imgproxy.divecdn.com/33OjhugdRJJNJ2mphsMjsJUCxCjAN60i4fih1DJAV7g/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0yNDA3NzkxLmpwZw==.webp" width="600" height="338" srcset="https://imgproxy.divecdn.com/5GDaxTu_AmXL9dtqI_zmOSkDlBFj1CNnPTxqX0wDYa4/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0yNDA3NzkxLmpwZw==.webp 300w, https://imgproxy.divecdn.com/33OjhugdRJJNJ2mphsMjsJUCxCjAN60i4fih1DJAV7g/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0yNDA3NzkxLmpwZw==.webp 600w" sizes="25vw" alt="Transformers and power transmission lines at a power distribution yard August 18, 2003 in Des Plaines, Illinois." loading="lazy" > </a> </div> <div class="sidebar-box-title-container"> <div class="label label--medium"> Deep Dive </div> <a class="analytics t-most-popular-sidebar-item-1 sidebar-box-list__item-title" href="/news/electric-transformer-shortage-nrel-niac/738947/">Transformer supply bottleneck threatens power system stability as load grows </a>  </div> </li> <li class="sidebar-box-list__item sidebar-box-list__item--ordered flex">  <div class="sidebar-box-list__image-container"> <a class="analytics t-most-popular-sidebar-item-2 hide-small show-large" href="/news/us-grid-headroom-flexible-load-data-center-ai-ev-duke-report/739767/"> <img class="sidebar-box-list__image" src="https://imgproxy.divecdn.com/4KJoyBMrAzCEIMbhwzKrmwwtXodkkA41qFYo90lJQu0/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0yMTYwNjA5MDY3LmpwZw==.webp" width="600" height="338" srcset="https://imgproxy.divecdn.com/YMM43qLGD2fu2Z8nl7DDVZEWALwr4rC-0Lp4iP8zwEg/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0yMTYwNjA5MDY3LmpwZw==.webp 300w, https://imgproxy.divecdn.com/4KJoyBMrAzCEIMbhwzKrmwwtXodkkA41qFYo90lJQu0/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0yMTYwNjA5MDY3LmpwZw==.webp 600w" sizes="25vw" alt="A red crane in front of large concrete buildings." loading="lazy" > </a> </div> <div class="sidebar-box-title-container"> <a class="analytics t-most-popular-sidebar-item-2 sidebar-box-list__item-title" href="/news/us-grid-headroom-flexible-load-data-center-ai-ev-duke-report/739767/">Existing US grid can handle ‘significant’ new flexible load: report </a>  </div> </li> <li class="sidebar-box-list__item sidebar-box-list__item--ordered flex">  <div class="sidebar-box-list__image-container"> <a class="analytics t-most-popular-sidebar-item-3 hide-small show-large" href="/news/northern-united-states-energy-grids-canada-tariff-threat/739801/"> <img class="sidebar-box-list__image" src="https://imgproxy.divecdn.com/r9rH82VnqYFwYmukamPM0f_qIOMuFtSmTLp73_HNitQ/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy00NjUwMjA1NTAuanBn.webp" width="600" height="338" srcset="https://imgproxy.divecdn.com/K8D-2eAFptMxVvkoB2UQPO_cHUXw-2yr3JjWInhjfJ4/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy00NjUwMjA1NTAuanBn.webp 300w, https://imgproxy.divecdn.com/r9rH82VnqYFwYmukamPM0f_qIOMuFtSmTLp73_HNitQ/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy00NjUwMjA1NTAuanBn.webp 600w" sizes="25vw" alt="Electric transmission lines crossing Colorado's Eagles Nest Wilderness." loading="lazy" > </a> </div> <div class="sidebar-box-title-container"> <a class="analytics t-most-popular-sidebar-item-3 sidebar-box-list__item-title" href="/news/northern-united-states-energy-grids-canada-tariff-threat/739801/">Uncertainty clouds northern US grids amid Canada tariff threat </a>  </div> </li> <li class="sidebar-box-list__item sidebar-box-list__item--ordered flex">  <div class="sidebar-box-list__image-container"> <a class="analytics t-most-popular-sidebar-item-4 hide-small show-large" href="/news/shapiro-sues-trump-administration-frozen-funding-inflation-reduction/740101/"> <img class="sidebar-box-list__image" src="https://imgproxy.divecdn.com/63oK89tKYlrU95KtJM3Aq1YiFfLCxCI5oaAzj7wwnwM/g:nowe:540:851/c:4851:2740/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzIzMTA2MDQzLmpwZw==.webp" width="600" height="338" srcset="https://imgproxy.divecdn.com/xtwRykFh3268e4RZMFhHXik4NmiyxmcSmY-zgyP9wsI/g:nowe:540:851/c:4851:2740/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzIzMTA2MDQzLmpwZw==.webp 300w, https://imgproxy.divecdn.com/63oK89tKYlrU95KtJM3Aq1YiFfLCxCI5oaAzj7wwnwM/g:nowe:540:851/c:4851:2740/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzIzMTA2MDQzLmpwZw==.webp 600w" sizes="25vw" alt="Pennsylvania Gov. Josh Shapiro speaks at a podium." loading="lazy" > </a> </div> <div class="sidebar-box-title-container"> <a class="analytics t-most-popular-sidebar-item-4 sidebar-box-list__item-title" href="/news/shapiro-sues-trump-administration-frozen-funding-inflation-reduction/740101/">Pennsylvania Gov. Shapiro sues Trump administration, citing frozen IRA funding </a>  </div> </li> </ol> </div> <div class="sidebar-box hide-small show-large" data-box-priority="4"> <h3 class="sidebar-box__header">Library resources</h3> <ul class="sidebar-box-list"> <li class="sidebar-box-list__item flex"> <div class='sidebar-box-list__icon sidebar-box-list__icon--loud'> <img src="/static/img/lib_icons/whitepaper.svg?102717100918" height="25" width="25" alt="editorial resource icon" loading="lazy"> </div> <div> <a class="analytics t-library-sidebar-item-1 sidebar-box-list__item-title" target="_blank" href="https://www.utilitydive.com/news/2025-electric-utility-trends-outlook-2025/738845/"> The Utility Dive Outlook on 2025 </a> </div> </li> <li class="sidebar-box-list__item flex"> <div class='sidebar-box-list__icon sidebar-box-list__icon--loud'> <img src="/static/img/lib_icons/trendline.svg?353714160519" height="25" width="25" alt="editorial resource icon" loading="lazy"> </div> <div> <div class="label label--soft">Trendline</div> <a class="analytics t-library-sidebar-item-2 sidebar-box-list__item-title" target="_blank" href="https://www.utilitydive.com/trendline/virtual-power-plants/519/?utm_source=UD&utm_medium=Library&utm_campaign=VirtualPeaker"> Inside the rise of virtual power plants </a> <span class="sponsor-label__leading-text secondary-label">Supported by </span> <span class="sponsor-label__name secondary-label">Virtual Peaker</span> </div> </li> <li class="sidebar-box-list__item flex"> <div class='sidebar-box-list__icon sidebar-box-list__icon--loud'> <img src="/static/img/lib_icons/trendline.svg?353714160519" height="25" width="25" alt="editorial resource icon" loading="lazy"> </div> <div> <div class="label label--soft">Trendline</div> <a class="analytics t-library-sidebar-item-3 sidebar-box-list__item-title" target="_blank" href="https://www.utilitydive.com/trendline/sustainability/179/?utm_source=UD&utm_medium=Library&utm_campaign=ProcoreTechnologies"> How utilities are prioritizing sustainability efforts in 2025 </a> <span class="sponsor-label__leading-text secondary-label">Supported by </span> <span class="sponsor-label__name secondary-label">Procore Technologies</span> </div> </li> </ul> <a class="analytics t-library-sidebar-all sidebar-box__cta" aria-label="View all library items" href="/library/">View all</a> </div> <div class="sidebar-box js-pressrelease-sidebar-box" data-box-priority=" 6 "> <h3 class="sidebar-box__header">Company Announcements</h3> <ul class="sidebar-box-list"> <li class="sidebar-box-list__item flex js-pressrelease" data-pressrelease-full-url="https://www.utilitydive.com/press-release/20250130-nv5-and-usgs-release-high-resolution-lidar-data-of-palisades-fire-and-eaton/"> <div class="sidebar-box-list__thumbnail-container"> <img alt="NV5 logo" height="48" loading="lazy" src="https://res.cloudinary.com/dmgi9movl/image/upload/dpr_2.0,h_48,w_48/v1738262103/press_release/assets/company_logos/NV5_Geospatial_Logo_250x250_rpfwsr.png" width="48"/> </div> <div class="sidebar-box-title-container"> <a class="sidebar-box-list__item-title analytics t-pr-sidebar-item" href="/press-release/20250130-nv5-and-usgs-release-high-resolution-lidar-data-of-palisades-fire-and-eaton/">NV5 and USGS Release High Resolution Lidar Data of Palisades Fire and Eaton Fire Burn Areas to…</a> <span class="secondary-label"> From NV5 </span> </div> </li> <li class="sidebar-box-list__item flex js-pressrelease" data-pressrelease-full-url="https://www.utilitydive.com/press-release/20250212-ascend-analytics-launches-next-generation-power-asset-valuation-product-po/"> <div class="sidebar-box-list__thumbnail-container"> <img alt="Ascend Analytics logo" height="48" loading="lazy" src="https://res.cloudinary.com/dmgi9movl/image/upload/dpr_2.0,h_48,w_48/v1739396361/press_release/assets/company_logos/Ascend_logo_blue_pif9hc.png" width="48"/> </div> <div class="sidebar-box-title-container"> <a class="sidebar-box-list__item-title analytics t-pr-sidebar-item" href="/press-release/20250212-ascend-analytics-launches-next-generation-power-asset-valuation-product-po/">Ascend Analytics Launches Next Generation Power Asset Valuation Product, PowerVAL</a> <span class="secondary-label"> From Ascend Analytics </span> </div> </li> <li class="sidebar-box-list__item flex js-pressrelease" data-pressrelease-full-url="https://www.utilitydive.com/press-release/20250127-renewable-energy-technology-leader-gary-meyers-joins-raptor-maps-board-of-d/"> <div class="sidebar-box-title-container"> <a class="sidebar-box-list__item-title analytics t-pr-sidebar-item" href="/press-release/20250127-renewable-energy-technology-leader-gary-meyers-joins-raptor-maps-board-of-d/">Renewable Energy Technology Leader Gary Meyers Joins Raptor Maps Board of Directors</a> <span class="secondary-label"> From Raptor Maps </span> </div> </li> <li class="sidebar-box-list__item flex js-pressrelease" data-pressrelease-full-url="https://www.utilitydive.com/press-release/20250129-weavegrid-secures-strategic-investment-from-hyundai-motor-and-kia-reinforc-1/"> <div class="sidebar-box-list__thumbnail-container"> <img alt="WeaveGrid logo" height="48" loading="lazy" src="https://res.cloudinary.com/dmgi9movl/image/upload/dpr_2.0,h_48,w_48/v1738132972/press_release/assets/company_logos/Logomark_on_Deep_Teal_ngyzwy.png" width="48"/> </div> <div class="sidebar-box-title-container"> <a class="sidebar-box-list__item-title analytics t-pr-sidebar-item" href="/press-release/20250129-weavegrid-secures-strategic-investment-from-hyundai-motor-and-kia-reinforc-1/">WeaveGrid Secures Strategic Investment from Hyundai Motor and Kia, Reinforcing Leadership in E…</a> <span class="secondary-label"> From WeaveGrid </span> </div> </li> </ul> <span class="sidebar-box__cta"> <a class="analytics t-pr-sidebar-all" aria-label="View all press release items" href="/press-release/">View all</a> | <a class="analytics t-pr-sidebar-start" href="/press-release/get-started/">Post a press release</a> </span> </div> <div class="sidebar-box hide-small show-large" data-box-priority="8"> <h3 class="sidebar-box__header">What We're Reading</h3> <ul class="sidebar-box-list"> <li class="sidebar-box-list__item"> <img src="https://www.google.com/s2/favicons?domain=https%3A//utahnewsdispatch.com/2025/02/13/competing-senate-bills-how-should-utah-power-new-data-centers/" height="16" width="16" alt="" loading="lazy"> <span class="label label--soft">Utah News Dispatch</span> <a class="analytics t-wwr-sidebar-item sidebar-box-list__item-title" href="https://utahnewsdispatch.com/2025/02/13/competing-senate-bills-how-should-utah-power-new-data-centers/" target="_blank"> Competing Senate bills try to answer the question, how should Utah power new data centers? <img src="/static/img/offsite.svg?141716111021" class="off-site-link" alt="offsite link" height="12" width="12" loading="lazy"> </a> </li> <li class="sidebar-box-list__item"> <img src="https://www.google.com/s2/favicons?domain=https%3A//oilprice.com/Latest-Energy-News/World-News/Chevron-Set-to-Lay-Off-20-of-Global-Workforce.html" height="16" width="16" alt="" loading="lazy"> <span class="label label--soft">Oil Price</span> <a class="analytics t-wwr-sidebar-item sidebar-box-list__item-title" href="https://oilprice.com/Latest-Energy-News/World-News/Chevron-Set-to-Lay-Off-20-of-Global-Workforce.html" target="_blank"> Chevron Set to Lay Off 20% of Global Workforce <img src="/static/img/offsite.svg?141716111021" class="off-site-link" alt="offsite link" height="12" width="12" loading="lazy"> </a> </li> <li class="sidebar-box-list__item"> <img src="https://www.google.com/s2/favicons?domain=https%3A//finance.yahoo.com/news/trump-hostility-us-offshore-wind-120847467.html" height="16" width="16" alt="" loading="lazy"> <span class="label label--soft">Reuters</span> <a class="analytics t-wwr-sidebar-item sidebar-box-list__item-title" href="https://finance.yahoo.com/news/trump-hostility-us-offshore-wind-120847467.html" target="_blank"> Trump hostility to US offshore wind reverberates through supply chain <img src="/static/img/offsite.svg?141716111021" class="off-site-link" alt="offsite link" height="12" width="12" loading="lazy"> </a> </li> </ul> <a class="analytics t-wwr-sidebar-all sidebar-box__cta" aria-label="View all what we are reading items" href="/what-we-are-reading">View all</a> </div> <div class="sidebar-box hide-small show-large" data-box-priority="10"> <h3 class="sidebar-box__header">Events</h3> <ul class="sidebar-box-list"> <li class="sidebar-box-list__item flex"> <div class="sidebar-box-list__events-date "> <span class="sidebar-box-list__events-date__day "> 24 </span> <span class="sidebar-box-list__events-date__month "> MAR </span> </div> <div class="sidebar-box-title-container__events"> <span class="label label--soft"> Forum | 10 a.m. ET </span> <a class="analytics t-events-sidebar-item sidebar-box-list__item-title sidebar-box-list__item-title--spaced" href="https://smartenergycc.org/2025-annual-consumer-symposium/" target="_blank" rel="noopener noreferrer">SECC's 2025 Consumer Symposium </a> <span class="label label--weak">Dallas, Texas </span><br> <span class="label label--weak-italic">Presented by Smart Energy Consumer Collaborative (SECC)</span> </div> </li> <li class="sidebar-box-list__item flex"> <div class="sidebar-box-list__events-date "> <span class="sidebar-box-list__events-date__day "> 23 </span> <span class="sidebar-box-list__events-date__month "> APR </span> </div> <div class="sidebar-box-title-container__events"> <span class="label label--soft"> Conference </span> <a class="analytics t-events-sidebar-item sidebar-box-list__item-title sidebar-box-list__item-title--spaced" href="https://www.woodmac.com/events/solar-energy-storage-summit/?utm_campaign=pandr-amer-solar-storage-summit-25&utm_medium=cpc&utm_source=utility-dive&utm_content=utility-dive-calendar-listing" target="_blank" rel="noopener noreferrer">Solar & Energy Storage Summit </a> <span class="label label--weak">Denver, CO </span><br> <span class="label label--weak-italic">Presented by Wood Mackenzie Power & Renewables</span> </div> </li> </ul> <div class="sidebar-box__cta"> <a class="analytics t-events-sidebar-start " href="/selfservice/event-listings/contact">Promote an event</a> </div> </div> <div class="sidebar-box hide-small show-large" data-box-priority="8"> <h3 class="sidebar-box__header">Industry Intel</h3> <ul class="sidebar-box-list"> <li class="sidebar-box-list__item"> <a class="analytics t-intel-sidebar-item sidebar-box-list__item-title" target="_blank" href="http://resources.industrydive.com/geospatial-data-analytics?utm_source=UD&utm_medium=Library&utm_campaign=Korem"> Integrating Geospatial Data and Analytics Into Your Cloud Strategy: A Game Changer For Utilities </a> <span class="secondary-label secondary-label--all-caps">Webinar - on demand</span> <span class="secondary-label">•</span> <span class="secondary-label">Provided by Korem</span> </li> <li class="sidebar-box-list__item"> <a class="analytics t-intel-sidebar-item sidebar-box-list__item-title" target="_blank" href="https://resources.industrydive.com/reducing-grid-strain-with-automated-energy-management-for-ev-charging"> Reducing Grid Strain With Automated Energy Management for EV Charging </a> <span class="secondary-label secondary-label--all-caps">Webinar - on demand</span> <span class="secondary-label">•</span> <span class="secondary-label">Provided by Amply</span> </li> </ul> </div> <div class="hybrid-ad-wrapper hide-small show-large"> <div class="hybrid-ad-inner-wrapper"> <div class="hide-small show-large"> <div data-container-ad-unit-id="/21662595662/utilitydive/utilitydivehybrid3-desktop"></div> <div id='dfp-hybrid3-desktop'> <script> waitToLoadAds.push(function() { googletag.cmd.push(function() { if (window.dfp_visibility == 'desktop' ) { googletag.display('dfp-hybrid3-desktop'); googletag.pubads().addEventListener('slotRenderEnded', function (event) { var adUnitPath = '/21662595662/utilitydive/utilitydivehybrid3'; var onProformative = false; if (onProformative && event.slot.getAdUnitPath() === adUnitPath && !event.isEmpty ) { var adUnitPathWithVisibility = adUnitPath + '-desktop'; var selector = '.pf-comments__ad-wrapper [data-container-ad-unit-id="' + adUnitPathWithVisibility + '"]'; if (!$(selector).closest('.pf-comments__ad-wrapper').hasClass('borders')) { $(selector).closest('.pf-comments__ad-wrapper').addClass('borders') } } }); } }); }); </script> </div> </div> </div> </div> </aside> </div> </div> </div>  <section class="pre-footer"> <section class="signup call-out elevated-footer hide-small hide-medium show-large"> <div class="row"> <div class="large-11 medium-11 medium-centered columns footer-signup" style="display: flex"> <div class="footer-signup__content"> <h3>Utility Dive news delivered to your inbox</h3> <p class="subhead">Get the free daily newsletter read by industry experts</p> <form class="form js-form-email-validate" name="signup" action="/signup/" method="POST"> <label for="id_248493_email" class="email-input js-email-input"> <span class="screen-reader-text">Email:</span> <input type="email" name="email" placeholder="Work email address" class="email" required id="id_248493_email"> </label> <input type="hidden" name="signup_box_location" value="elevated_footer"> <input type="hidden" name="signup_initial_url_path" value="/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/"> <input type="hidden" name="signup_internal_referrer"> <input type="hidden" name="signup_external_referrer"> <input type="hidden" name="referral_url"> <input type="hidden" name="js_enabled" value="0" id="id_248493_js_enabled"> <ul class="signup-list list-no-bullets"> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-elevated_footer-checkbox-2" type="checkbox" name="site_newsletters" value="2" class="checkbox" /> <label for="newsletter-elevated_footer-checkbox-2"> <span class="newsletter-title">Daily Dive</span> <span class="secondary-label">M-F</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-elevated_footer-checkbox-41" type="checkbox" name="site_newsletters" value="41" class="checkbox" /> <label for="newsletter-elevated_footer-checkbox-41"> <span class="newsletter-title">Storage Weekly</span> <span class="secondary-label">Every Tuesday</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-elevated_footer-checkbox-13" type="checkbox" name="site_newsletters" value="13" class="checkbox" /> <label for="newsletter-elevated_footer-checkbox-13"> <span class="newsletter-title">Load Management Weekly</span> <span class="secondary-label">Every Wednesday</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-elevated_footer-checkbox-25" type="checkbox" name="site_newsletters" value="25" class="checkbox" /> <label for="newsletter-elevated_footer-checkbox-25"> <span class="newsletter-title">Renewable Energy Weekly</span> <span class="secondary-label">Every Thursday</span> </label> </li> <li> <label><span class="screen-reader-text">Select user consent:</span></label> <input type="checkbox" name="user_consent" id="id_user_consent-elevated_footer" value="1" class="checkbox"/> <label for="id_user_consent-elevated_footer"> <span class="signup-user-consent_box"> <span> By signing up to receive our newsletter, you agree to our <a href="https://www.techtarget.com/terms-of-use/" target="_blank">Terms of Use</a> and <a href="https://www.techtarget.com/privacy-policy/" target="_blank">Privacy Policy</a>. You can unsubscribe at anytime. </span> </span> </label> </li> </ul> <button class="button button--medium signup-button" type="submit" value="Sign up">Sign up</button> <script type="module" src="/static/js/dist/sendEmailToLytics.bundle.js?290716050225" ></script> <label class="error email_error" style="display:none;">A valid email address is required.</label> <label class="error newsletter-error" style="display:none;">Please select at least one newsletter.</label> </form> </div> <div class="footer-signup__image"> <img class="desktop-image" src="/static/img/article-signup.png?320916100822" width="275" height="275" loading="lazy" alt="Daily Dive newsletter example"> </div> </div> </div> </section> <section class="hide-small hide-medium show-large pressrelease-section"> <div class="row pressrelease-footer-box js-pressrelease-footer-box"> <div class="large-12 columns"> <div class="row"> <div class="large-12 columns pressrelease-footer-header"> <h2 class="uppercase-heading-02 pressrelease-footer__heading">Company Announcements</h2> </div> </div> <div class="row"> <div class="large-12 columns pressrelease-footer__cta-links"> <a class="analytics t-pr-edfooter-all" aria-label="View all press release items" href="/press-release/">View all</a> | <a class="analytics t-pr-edfooter-start" href="/press-release/get-started/">Post a press release</a> </div> </div> <div class="row pressrelease-footer__item-list"> <a class="pressrelease-footer-item__anchor analytics t-pr-edfooter-item" href="/press-release/20250130-nv5-and-usgs-release-high-resolution-lidar-data-of-palisades-fire-and-eaton/"> <div class="large-3 columns pressrelease-footer-item js-pressrelease" data-pressrelease-full-url="https://www.utilitydive.com/press-release/20250130-nv5-and-usgs-release-high-resolution-lidar-data-of-palisades-fire-and-eaton/"> <div class="pressrelease-footer-item__title"> NV5 and USGS Release High Resolution Lidar Data of Palisades Fire and Eaton Fire Burn Areas to… </div> <div class="pressrelease-footer-item__description"> <div class="pressrelease-footer-item__company"> <div>From NV5</div> <div class="press-release-date">January 30, 2025</div> </div> <span> <img alt="NV5 logo" class="pressrelease-footer-item__logo" height="50" loading="lazy" src="https://res.cloudinary.com/dmgi9movl/image/upload/dpr_2.0,h_50,w_50/v1738262103/press_release/assets/company_logos/NV5_Geospatial_Logo_250x250_rpfwsr.png" width="50"/> </span> </div> </div> </a> <a class="pressrelease-footer-item__anchor analytics t-pr-edfooter-item" href="/press-release/20250212-ascend-analytics-launches-next-generation-power-asset-valuation-product-po/"> <div class="large-3 columns pressrelease-footer-item js-pressrelease" data-pressrelease-full-url="https://www.utilitydive.com/press-release/20250212-ascend-analytics-launches-next-generation-power-asset-valuation-product-po/"> <div class="pressrelease-footer-item__title"> Ascend Analytics Launches Next Generation Power Asset Valuation Product, PowerVAL </div> <div class="pressrelease-footer-item__description"> <div class="pressrelease-footer-item__company"> <div>From Ascend Analytics</div> <div class="press-release-date">February 13, 2025</div> </div> <span> <img alt="Ascend Analytics logo" class="pressrelease-footer-item__logo" height="50" loading="lazy" src="https://res.cloudinary.com/dmgi9movl/image/upload/dpr_2.0,h_50,w_50/v1739396361/press_release/assets/company_logos/Ascend_logo_blue_pif9hc.png" width="50"/> </span> </div> </div> </a> <a class="pressrelease-footer-item__anchor analytics t-pr-edfooter-item" href="/press-release/20250127-renewable-energy-technology-leader-gary-meyers-joins-raptor-maps-board-of-d/"> <div class="large-3 columns pressrelease-footer-item js-pressrelease" data-pressrelease-full-url="https://www.utilitydive.com/press-release/20250127-renewable-energy-technology-leader-gary-meyers-joins-raptor-maps-board-of-d/"> <div class="pressrelease-footer-item__title"> Renewable Energy Technology Leader Gary Meyers Joins Raptor Maps Board of Directors </div> <div class="pressrelease-footer-item__description"> <div class="pressrelease-footer-item__company"> <div>From Raptor Maps</div> <div class="press-release-date">January 28, 2025</div> </div> </div> </div> </a> <a class="pressrelease-footer-item__anchor analytics t-pr-edfooter-item" href="/press-release/20250129-weavegrid-secures-strategic-investment-from-hyundai-motor-and-kia-reinforc-1/"> <div class="large-3 columns pressrelease-footer-item js-pressrelease" data-pressrelease-full-url="https://www.utilitydive.com/press-release/20250129-weavegrid-secures-strategic-investment-from-hyundai-motor-and-kia-reinforc-1/"> <div class="pressrelease-footer-item__title"> WeaveGrid Secures Strategic Investment from Hyundai Motor and Kia, Reinforcing Leadership in E… </div> <div class="pressrelease-footer-item__description"> <div class="pressrelease-footer-item__company"> <div>From WeaveGrid</div> <div class="press-release-date">January 29, 2025</div> </div> <span> <img alt="WeaveGrid logo" class="pressrelease-footer-item__logo" height="50" loading="lazy" src="https://res.cloudinary.com/dmgi9movl/image/upload/dpr_2.0,h_50,w_50/v1738132972/press_release/assets/company_logos/Logomark_on_Deep_Teal_ngyzwy.png" width="50"/> </span> </div> </div> </a> </div> </div> </div> </section> <div class="row editors-pick-footer hide-small show-large"> <div class="columns medium-7"> <div class="row"> <div class="columns medium-12"> <div class="editors-pick-footer__title"> Editors' picks </div> <ul class="feed"> <li class="row feed__item"> <div class="medium-5 columns"> <figure class="feed__image-container"> <a class="feed__image analytics t-edfooter-edpicks-1" href="/news/dot-suspends-ev-electric-vehicle-charging-network/739521/"> <img class="" src="https://imgproxy.divecdn.com/CNrNPtvJ49HyKVg3ZnSdmWLLODmp6OuQ4L7YXijhit0/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzMwNDIwOTMtc21hbGwuanBn.webp" width="1200" height="675" srcset="https://imgproxy.divecdn.com/j7DspzLFmlif7tdS9KI5PB_h-_-X1ODX7owmVtX7LGw/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzMwNDIwOTMtc21hbGwuanBn.webp 300w, https://imgproxy.divecdn.com/bcH35ei1URqZCHsqz5iUKmRuodDGUHTi2-f_YkBt_pw/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzMwNDIwOTMtc21hbGwuanBn.webp 600w, https://imgproxy.divecdn.com/CNrNPtvJ49HyKVg3ZnSdmWLLODmp6OuQ4L7YXijhit0/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0xNzMwNDIwOTMtc21hbGwuanBn.webp 1200w" sizes="(min-width: 40em ) 25vw, 100vw" alt="Image of a dusty road." loading="lazy" > </a> <figcaption> <img class="feed__attribution-icon" src="/static/images/info-icon.png?234917240220" width="16" height="16" alt="Image attribution tooltip" tabindex="0"> <div class="feed__attribution">Hal Bergman via Getty Images</div> <img class="feed__attribution-icon" src="/static/images/info-icon.png?234917240220" width="16" height="16" alt="Image attribution tooltip" tabindex="-1"> </figcaption> </figure> </div> <div class="medium-7 columns"> <h3 class="feed__title feed__title--display"> <a href="/news/dot-suspends-ev-electric-vehicle-charging-network/739521/" class="analytics t-edfooter-edpicks-1"> DOT suspends Biden’s $5B electric vehicle charging network effort </a> </h3> <p class="feed__description hide-small show-large">Most of the National Electric Vehicle Infrastructure funds have already been awarded to states, however, and some observers say the Trump administration cannot end the program with just a memo.</p> <div class="secondary-label"> By Robert Walton • <span class="secondary-label">Feb. 7, 2025</span> </div> </div> </li> <li class="row feed__item"> <div class="medium-5 columns"> <figure class="feed__image-container"> <a class="feed__image analytics t-edfooter-edpicks-2" href="/news/fast-track-grid-interconnection-ferc-pjm-house-senate-bill/739523/"> <img class="" src="https://imgproxy.divecdn.com/blXaGfho7KhwFsw6ZFi5ozbDMzWRwvGTEyGM3Y6ezMA/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9ndWVybnNleV9wb3dlcl9wbGFudC5qcGc=.webp" width="1200" height="675" srcset="https://imgproxy.divecdn.com/T_cNdQPD4o3f5OgVwY6fkztwlfGBwoSoyFz9aR2QID8/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9ndWVybnNleV9wb3dlcl9wbGFudC5qcGc=.webp 300w, https://imgproxy.divecdn.com/Yh6HHIZb5M2AIUXDWhhrQl5jIWOvQ7XMrw93461OE4s/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9ndWVybnNleV9wb3dlcl9wbGFudC5qcGc=.webp 600w, https://imgproxy.divecdn.com/blXaGfho7KhwFsw6ZFi5ozbDMzWRwvGTEyGM3Y6ezMA/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9ndWVybnNleV9wb3dlcl9wbGFudC5qcGc=.webp 1200w" sizes="(min-width: 40em ) 25vw, 100vw" alt="An industrial complex with three smokestacks in a rural setting." loading="lazy" > </a> <figcaption> <img class="feed__attribution-icon" src="/static/images/info-icon.png?234917240220" width="16" height="16" alt="Image attribution tooltip" tabindex="0"> <div class="feed__attribution">Courtesy of GE Vernova</div> <img class="feed__attribution-icon" src="/static/images/info-icon.png?234917240220" width="16" height="16" alt="Image attribution tooltip" tabindex="-1"> </figcaption> </figure> </div> <div class="medium-7 columns"> <h3 class="feed__title feed__title--display"> <a href="/news/fast-track-grid-interconnection-ferc-pjm-house-senate-bill/739523/" class="analytics t-edfooter-edpicks-2"> RTOs could fast-track dispatchable generation under House, Senate bills </a> </h3> <p class="feed__description hide-small show-large">The legislation would let dispatchable generation jump ahead in interconnection queues after a review by the Federal Energy Regulatory Commission.</p> <div class="secondary-label"> By Ethan Howland • <span class="secondary-label">Feb. 7, 2025</span> </div> </div> </li> </ul> </div> </div> </div> <div class="columns medium-4"> <div class="row newsposts-by-topic"> <div class="columns medium-12"> <div class="editors-pick-footer__title"> Latest in Building & Transportation Electrification </div> <div class="newsposts-by-topic-section"> <ul class="feed"> <li class="row feed__item"> <div class="medium-4 columns"> <div class="feed__image-container"> <a class="feed__image analytics t-edfooter-topics-1" href="/news/electric-transformer-shortage-nrel-niac/738947/"> <img class="" src="https://imgproxy.divecdn.com/33OjhugdRJJNJ2mphsMjsJUCxCjAN60i4fih1DJAV7g/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0yNDA3NzkxLmpwZw==.webp" width="600" height="338" srcset="https://imgproxy.divecdn.com/5GDaxTu_AmXL9dtqI_zmOSkDlBFj1CNnPTxqX0wDYa4/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0yNDA3NzkxLmpwZw==.webp 300w, https://imgproxy.divecdn.com/33OjhugdRJJNJ2mphsMjsJUCxCjAN60i4fih1DJAV7g/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9HZXR0eUltYWdlcy0yNDA3NzkxLmpwZw==.webp 600w" sizes="25vw" alt="Transformers and power transmission lines at a power distribution yard August 18, 2003 in Des Plaines, Illinois." loading="lazy" > </a> </div> </div> <div class="medium-8 columns latest-copy"> <div class="display-heading-01"> <a class="analytics t-edfooter-topics-1" href="/news/electric-transformer-shortage-nrel-niac/738947/"> Transformer supply bottleneck threatens power system stability as load grows </a> </div> <div class="secondary-label"> By Herman K. Trabish </div> </div> </li> <li class="row feed__item"> <div class="medium-4 columns"> <div class="feed__image-container"> <a class="feed__image analytics t-edfooter-topics-2" href="/news/carrier-unveils-data-center-strategy-growth-hvac-sales-q4-quantum-leap/740038/"> <img class="" src="https://imgproxy.divecdn.com/o8NpN2wvBA2zMyonfrMRP7wU3B1ZE8rjm0bb-yJm6uc/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9BQy5qcGc=.webp" width="600" height="338" srcset="https://imgproxy.divecdn.com/UR2Cuk0Sd1I6Mz2WHvALifkxIbj_MKs-QM96_1ljS-0/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9BQy5qcGc=.webp 300w, https://imgproxy.divecdn.com/o8NpN2wvBA2zMyonfrMRP7wU3B1ZE8rjm0bb-yJm6uc/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9BQy5qcGc=.webp 600w" sizes="25vw" alt="Carrier Corp., 4Q24 earnings" loading="lazy" > </a> </div> </div> <div class="medium-8 columns latest-copy"> <div class="display-heading-01"> <a class="analytics t-edfooter-topics-2" href="/news/carrier-unveils-data-center-strategy-growth-hvac-sales-q4-quantum-leap/740038/"> Carrier unveils data center strategy, growth in Q4 HVAC sales </a> </div> <div class="secondary-label"> By Joe Burns </div> </div> </li> <li class="row feed__item"> <div class="medium-4 columns"> <div class="feed__image-container"> <a class="feed__image analytics t-edfooter-topics-3" href="/news/abb-samsung-user-friendly-energy-management-insite-smartthings-commercial-platform/739941/"> <img class="" src="https://imgproxy.divecdn.com/_l0ljsTVlon9DHK5sAjblyWRvhu-1TnvTA30sEn8EI0/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9JblNpdGVfeF9TbWFydFRoaW5nc19ib2R5LmpwZw==.webp" width="600" height="338" srcset="https://imgproxy.divecdn.com/OE6lj4-J_W6RV-vT8Hrd0sVtKGvOA2oCtgjgGSVZ_C0/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9JblNpdGVfeF9TbWFydFRoaW5nc19ib2R5LmpwZw==.webp 300w, https://imgproxy.divecdn.com/_l0ljsTVlon9DHK5sAjblyWRvhu-1TnvTA30sEn8EI0/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9JblNpdGVfeF9TbWFydFRoaW5nc19ib2R5LmpwZw==.webp 600w" sizes="25vw" alt="ABB, InSite, Samsung, Smartthings, energy management" loading="lazy" > </a> </div> </div> <div class="medium-8 columns latest-copy"> <div class="display-heading-01"> <a class="analytics t-edfooter-topics-3" href="/news/abb-samsung-user-friendly-energy-management-insite-smartthings-commercial-platform/739941/"> ABB and Samsung offer user-friendly energy management platform </a> </div> <div class="secondary-label"> By Robert Freedman </div> </div> </li> <li class="row feed__item"> <div class="medium-4 columns"> <div class="feed__image-container"> <a class="feed__image analytics t-edfooter-topics-4" href="/news/ionna-charging-network-expansion-2025/739788/"> <img class="" src="https://imgproxy.divecdn.com/fCcRdaik4C9tydTVp7HOV6IBoaMk8fK3u2GkEerpynY/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9FVl9nYXNfc3RhdGlvbi5wbmc=.webp" width="600" height="338" srcset="https://imgproxy.divecdn.com/MvKP714XyOdaxOEW_ycRbMDAFZNYMYbGax1DRKAKflg/g:ce/rs:fill:300:169:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9FVl9nYXNfc3RhdGlvbi5wbmc=.webp 300w, https://imgproxy.divecdn.com/fCcRdaik4C9tydTVp7HOV6IBoaMk8fK3u2GkEerpynY/g:ce/rs:fill:600:338:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9FVl9nYXNfc3RhdGlvbi5wbmc=.webp 600w" sizes="25vw" alt="Ionna rechargery apex north carolina" loading="lazy" > </a> </div> </div> <div class="medium-8 columns latest-copy"> <div class="display-heading-01"> <a class="analytics t-edfooter-topics-4" href="/news/ionna-charging-network-expansion-2025/739788/"> Ionna EV charging network moving forward </a> </div> <div class="secondary-label"> By Larry Avila </div> </div> </li> </ul> </div> </div> </div> </div> </div> </section> <hr class="footer-hr"> <footer> <div class="custom-article-footer"> <div class="row columns"> <div class="footer-grid"> <div class="footer-links"> <a href="https://www.industrydive.com"> <img class="pub-logo-footer" src="https://d12v9rtnomnebu.cloudfront.net/logo/corporate/ID_black.svg" alt="Industry Dive Logo" height="28" loading="lazy"/> </a> <ul class="social-icon-list social-icon-list__footer"> <li> <a href="https://www.linkedin.com/company/utility-dive-energy-and-utility-news" aria-label="Industry Dive LinkedIn" class="social-icon-footer analytics t-sitefooter-linkedin"> <img src="/static/img/social_icons/article_page/linkedin.svg?092716141024"> </a> </li> <li> <a href="https://www.facebook.com/utilitydive/" aria-label="Industry Dive Facebook" class="social-icon-footer analytics t-sitefooter-facebook"> <img src="/static/img/social_icons/article_page/facebook.svg?440116200824"> </a> </li> <li> <a href="https://twitter.com/UtilityDive" aria-label="Industry Dive X/Twitter" class="social-icon-footer analytics t-sitefooter-twitter"> <img src="/static/img/social_icons/article_page/x.svg?092716141024"> </a> </li> <li> <a href="https://www.utilitydive.com/feeds/news/" aria-label="Industry Dive RSS feed" class="social-icon-footer analytics t-sitefooter-rss"> <img src="/static/img/social_icons/article_page/rss.svg?440116200824"> </a> </li> </ul> </div> <div class="link-wrapper"> <div class="footer-links"> <h4 class="uppercase-heading-01">Explore</h4> <ul class="list-no-bullets"> <li> <a href="/about/" class="analytics t-about-sitefooter">About</a> </li> <li> <a href="/editors/" class="analytics t-editors-sitefooter">Editorial Team</a> </li> <li> <a href="/contact/" class="analytics t-feedback-sitefooter">Contact Us</a> </li> <li> <a href="/signup/?signup_location=footer-list&signup_path=/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/" class="analytics t-signup-sitefooter">Newsletter</a> </li> <li> <a href="/selfservice/article-licensing/submit/" class="analytics t-licensing-sitefooter">Purchase Licensing Rights</a> </li> <li> <a class="analytics t-pr-sitefooter-all" href="/press-release/">Press Releases</a> </li> <li> <a href="/what-we-are-reading/" class="analytics t-wwr-sitefooter">What We're Reading</a> </li> </ul> </div> <div class="second-column"> <div class="footer-links"> <h4 class="uppercase-heading-01">Reach our audience</h4> <ul class="list-no-bullets"> <li> <a href="/advertise/" class="analytics t-advertising-sitefooter">Advertising</a> </li> <li> <a class="analytics t-pr-sitefooter-all" href="/press-release/get-started/">Post a press release</a> </li> <li> <a class="analytics t-pr-sitefooter-all" href="/opinion/">Submit an opinion piece</a> </li> <li> <a class="analytics t-events-sitefooter-start" href="/selfservice/event-listings/contact">Promote an event</a> </li> </ul> </div> <div class="footer-links"> <h4 class="uppercase-heading-01">Related Publications</h4> <ul class="list-no-bullets"> <li> <a href="https://www.smartcitiesdive.com/" class="analytics t-sitefooter-related-smart-cities-dive">Smart Cities Dive</a> </li> <li> <a href="https://www.wastedive.com/" class="analytics t-sitefooter-related-waste-dive">Waste Dive</a> </li> </ul> </div> </div> </div> </div> </div> </div> </footer> <hr class="footer-hr"> <div class="baseline-footer-wrapper"> <div> <div> Industry Dive is an Informa TechTarget business. </div> </div> <div class="baseline-footer"> © 2025 TechTarget, Inc. or its subsidiaries. All rights reserved. | View our <a href="https://www.industrydive.com/industries/">other publications</a> | <a href="https://www.techtarget.com/privacy-policy/">Privacy policy</a> | <a href="https://www.techtarget.com/terms-of-use/">Terms of use</a> | <a href="https://www.industrydive.com/takedown-policy/">Take down policy</a>. <br> <a href="#" onclick="Osano.cm.showDrawer('osano-cm-dom-info-dialog-open')">Cookie Preferences / Do Not Sell</a> </div> <div class="informa-legal-notice"> This website is owned and operated by Informa TechTarget, part of a global network that informs, influences and connects the world's technology buyers and sellers. All copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. TechTarget, Inc.'s registered office is 275 Grove St. Newton, MA 02466. </div> </div> </div> </div>  <nav class="mobile-menu"> <div class="mm-top-bar"> <button class="mobile-menu-toggle"> <img src="/static/img/menu_icons/close.svg?273117231121" width="20" height="20" alt="close menu"/> </button> <div class="mm-search"> <form action="/search/" method="GET" data-ajax="false"> <label for="search-mobile"> <span class="screen-reader-text">Search</span> <input id="search-mobile" type="search" name="q" placeholder="Search" data-role="none"> </label> <button type="submit" value="" data-role="none" class="search-button-front analytics t-search-navigation-mobile"> <img src="/static/img/menu_icons/search.svg?320116291121" width="15" height="15" alt="search"> </button> </form> </div> </div> <ul class="mm-list list-no-bullets"> <li> <a href="/" class="analytics t-dash-navigation-mobile"> <span>Home</span> </a> </li> <li class="mm-accordion"> <button> <span>Topics</span> <span class="accordion-toggle-arrow"> <img src="/static/img/menu_icons/chevron_down.svg?102717100918" width="16" height="9" alt="down arrow" loading="lazy"> </span> </button> <ul class="list-no-bullets"> <li> <a class="analytics t-topic-navigation-mobile-Generation" href="/topic/Generation/">Generation</a> </li> <li> <a class="analytics t-topic-navigation-mobile-transmission-distribution" href="/topic/transmission-distribution/">T&D</a> </li> <li> <a class="analytics t-topic-navigation-mobile-grid-security-reliability" href="/topic/grid-security-reliability/">Grid Reliability</a> </li> <li> <a class="analytics t-topic-navigation-mobile-building-transportation-electrification" href="/topic/building-transportation-electrification/">Electrification</a> </li> <li> <a class="analytics t-topic-navigation-mobile-demand-response" href="/topic/demand-response/">Load Management</a> </li> <li> <a class="analytics t-topic-navigation-mobile-solar" href="/topic/solar/">Renewables</a> </li> <li> <a class="analytics t-topic-navigation-mobile-storage" href="/topic/storage/">Storage</a> </li> <li> <a class="analytics t-topic-navigation-mobile-distributed-energy" href="/topic/distributed-energy/">DER</a> </li> <li> <a class="analytics t-topic-navigation-mobile-policy" href="/topic/policy/">Regs</a> </li> <li> <a class="analytics t-topic-navigation-mobile-market-news" href="/topic/market-news/">Corp News</a> </li> </ul> </li> <li> <a href="/deep-dive/" class="analytics t-deepdive-navigation-mobile"> <span>Deep Dive</span> </a> </li> <li> <a href="/opinion/" class="analytics t-opinion-navigation-mobile"> <span>Opinion</span> </a> </li> <li> <a href="/library/" class="analytics t-library-navigation-mobile"> <span>Library</span> </a> </li> <li> <a href="/events/" class="analytics t-events-navigation-mobile"> <span>Events</span> </a> </li> <li> <a href="/press-release/" class="analytics t-press-releases-navigation-mobile"> <span>Press Releases</span> </a> </li> </ul> <section class="signup mm-signup"> <div class="row"> <div class="large-9 medium-10 medium-centered columns"> <h3 class="display-heading-03 display-heading-03--loud">Get Utility Dive in your inbox</h3> <p class="subhead">The free newsletter covering the top industry headlines</p> <form class="form js-form-email-validate" name="signup" action="/signup/" method="POST"> <label for="id_43c516_email" class="email-input js-email-input"> <span class="screen-reader-text">Email:</span> <input type="email" name="email" placeholder="Work email address" class="email" required id="id_43c516_email"> </label> <input type="hidden" name="signup_box_location" value="integrated_menu"> <input type="hidden" name="signup_initial_url_path" value="/news/building-retrofit-data-sheds-light-on-energy-efficiency-harvard-study/730613/"> <input type="hidden" name="signup_internal_referrer"> <input type="hidden" name="signup_external_referrer"> <input type="hidden" name="referral_url"> <input type="hidden" name="js_enabled" value="0" id="id_43c516_js_enabled"> <ul class="signup-list list-no-bullets"> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-integrated_menu-checkbox-2" type="checkbox" name="site_newsletters" value="2" class="checkbox" /> <label for="newsletter-integrated_menu-checkbox-2"> <span class="newsletter-title">Daily Dive</span> <span class="secondary-label">M-F</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-integrated_menu-checkbox-41" type="checkbox" name="site_newsletters" value="41" class="checkbox" /> <label for="newsletter-integrated_menu-checkbox-41"> <span class="newsletter-title">Storage Weekly</span> <span class="secondary-label">Every Tuesday</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-integrated_menu-checkbox-13" type="checkbox" name="site_newsletters" value="13" class="checkbox" /> <label for="newsletter-integrated_menu-checkbox-13"> <span class="newsletter-title">Load Management Weekly</span> <span class="secondary-label">Every Wednesday</span> </label> </li> <li> <label><span class="screen-reader-text">Select Newsletter:</span></label> <input id="newsletter-integrated_menu-checkbox-25" type="checkbox" name="site_newsletters" value="25" class="checkbox" /> <label for="newsletter-integrated_menu-checkbox-25"> <span class="newsletter-title">Renewable Energy Weekly</span> <span class="secondary-label">Every Thursday</span> </label> </li> <li> <label><span class="screen-reader-text">Select user consent:</span></label> <input type="checkbox" name="user_consent" id="id_user_consent-integrated_menu" value="1" class="checkbox"/> <label for="id_user_consent-integrated_menu"> <span class="signup-user-consent_box"> <span> By signing up to receive our newsletter, you agree to our <a href="https://www.techtarget.com/terms-of-use/" target="_blank">Terms of Use</a> and <a href="https://www.techtarget.com/privacy-policy/" target="_blank">Privacy Policy</a>. You can unsubscribe at anytime. </span> </span> </label> </li> </ul> <button class="button button--medium signup-button" type="submit" value="Sign up">Sign up</button> <script type="module" src="/static/js/dist/sendEmailToLytics.bundle.js?290716050225" ></script> <label class="error email_error" style="display:none;">A valid email address is required.</label> <label class="error newsletter-error" style="display:none;">Please select at least one newsletter.</label> </form> </div> </div> </section> </nav> <script src="/static/js/news.js?543416080722" async></script> <script> //Add styling for pdf only if admin button is clicked $(".download-promoted-story-button").click(function(){ $("body").addClass("admin-pdf-styling"); }); $(".js-social-button-print, .js-social-icon-print").click(function(){ if ($("body").hasClass("admin-pdf-styling")){ $("body").removeClass("admin-pdf-styling"); } }); </script> <script type="application/ld+json"> { "@context": "https://schema.org", "@type": "NewsArticle", "headline": "Building retrofit data sheds light on energy efficiency: Harvard study", "image": [ "https://imgproxy.divecdn.com/FRVW4o9EcwFHJ2imR21lI-vnkresOoE1QaKexOrLMMg/g:ce/rs:fill:1200:1200:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp", "https://imgproxy.divecdn.com/MOEVPKpQbjbvcOUC5tli1LtnM4zULBqXTzcwbOdi_vE/g:ce/rs:fill:1200:900:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp", "https://imgproxy.divecdn.com/qUOHIHOZIBvc9A3ZA9umQn9XyxzqQDYxeEcYxwVNghA/g:ce/rs:fill:1200:675:1/Z3M6Ly9kaXZlc2l0ZS1zdG9yYWdlL2RpdmVpbWFnZS9Ib3VzZVplcm9fLV9yZXNpemVkLmpwZw==.webp" ], "datePublished": "2024-10-23T09:00:00", "dateModified": "", "author": [ { "@type": "Person", "name": "Nish Amarnath", "url": "www.utilitydive.comhttps://www.facilitiesdive.com/editors/namarnath/" } ] } </script> <script type="module" src="/static/js/dist/article.bundle.js?290716050225" ></script>  <script type="module" src="/static/js/dist/signupValidation.bundle.js?290716050225" ></script> <script type="module" src="/static/js/dist/gtmEvents.bundle.js?290716050225" ></script>  <script type="module" src="/static/js/dist/smartQuotes.bundle.js?290716050225" ></script> <script src="//platform.twitter.com/oct.js" type="text/javascript"></script> <script type="text/javascript"> if(typeof twttr !== 'undefined' && typeof twttr.conversion !== 'undefined') { twttr.conversion.trackPid('l6gv6', { tw_sale_amount: 0, tw_order_quantity: 0 }); } else { window.console && console.log && console.log('twttr undefined; Unable to track twitter retargeting'); } </script> <noscript> <img height="1" width="1" style="display:none;" alt="" src="https://analytics.twitter.com/i/adsct?txn_id=l6gv6&p_id=Twitter&tw_sale_amount=0&tw_order_quantity=0" /> <img height="1" width="1" style="display:none;" alt="" src="//t.co/i/adsct?txn_id=l6gv6&p_id=Twitter&tw_sale_amount=0&tw_order_quantity=0" /> </noscript> <script> // Set cookie if we're on mobile app. Expire if we're not. This affects // which template is used to display the site to the user. $(document).ready(function() { // Get integer value of mobileapp param from URL and default to 0 if it doesn't exist var mobileapp = ''; // Set cookie if mobileapp is 1 or 2 or expire cookie if mobileapp == 0 if (mobileapp == '0') { document.cookie = 'mobileapp=; path=/; expires=Thu, 01 Jan 1970 00:00:01 GMT;'; } else if (mobileapp == '1' || mobileapp == '2') { document.cookie = 'mobileapp=' + mobileapp + '; path=/;'; } // There's no need to immediately load or preload print.css since it's not needed on page // load. Therefore, load it when the document is ready var stylesheet=document.createElement("link"); stylesheet.setAttribute("rel", "stylesheet"); stylesheet.setAttribute("type", "text/css"); stylesheet.setAttribute("media", "print"); if (window.location.pathname.includes('trendline')) { stylesheet.setAttribute("href", "/static/css/print_trendline.css?460416050225"); } else { stylesheet.setAttribute("href", "/static/css/print.css?460416050225"); } document.getElementsByTagName("head")[0].appendChild(stylesheet); }); </script>   <script src="https://ak.sail-horizon.com/spm/spm.v1.min.js"></script> <script type="text/javascript"> $(function() { // Sailthru Personalization Engine Setup var sailthru_setup = { customerId: '12ab35a80530ffa5450add9c09f5de04', domain: 'horizon.utilitydive.com', spider: true }; if (window.Sailthru) { Sailthru.init(sailthru_setup); } }); </script> <script>(function(){function c(){var b=a.contentDocument||a.contentWindow.document;if(b){var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'91354d6b4c556d3b',t:'MTczOTc5MDMyOC4wMDAwMDA='};var a=document.createElement('script');a.nonce='';a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();</script></body> </html>

CINXE.COM

Building retrofit data sheds light on energy efficiency: Harvard study | Utility Dive