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id="s4-workspace" class="ms-core-overlay"> <div id="s4-bodyContainer"> <div class="s4-notdlg "> <div class="top-nav-container"> <ul> <li class="top-nav-link"><a href="http://www.caiso.com">caiso.com</a></li> <li class="top-nav-link"><a href="https://www.caiso.com/about/contact" target="_blank">Contact Us</a></li> <li class="top-nav-link"><a href="/Pages/Notifications.aspx">News & Notices</a></li> <li class="top-nav-link"><a href="/Pages/Calendar.aspx">Calendar</a></li> </ul> </div>  <div class="eim-logo-container"> <a href="/"><img src="/Style%20Library/images/WEIM-homepage-headertext.png" /></a> </div> </div> <div id="s4-titlerow" class="ms-dialogHidden s4-titlerowhidetitle eim-main-nav-container "> <div id="titleAreaBox" class="ms-noList ms-table ms-core-tableNoSpace"> <div id="titleAreaRow" class="ms-tableRow">  <div class="ms-breadcrumb-box ms-tableCell ms-verticalAlignTop" style="display: none;"> <div class="ms-breadcrumb-top"> <div class="ms-breadcrumb-dropdownBox" 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class="menu-item-text">How the markets work</span></span></a></li><li class="dynamic"><a class="dynamic menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode" href="/Pages/About/QuarterlyBenefits.aspx"><span class="additional-background ms-navedit-flyoutArrow"><span class="menu-item-text">Quarterly benefits</span></span></a></li> </ul></li><li class="static dynamic-children"><span class="static dynamic-children menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode"><span aria-haspopup="true" class="additional-background ms-navedit-flyoutArrow dynamic-children"><span class="menu-item-text">About WEIM</span></span></span><ul aria-hidden="true" class="dynamic"> <li class="dynamic"><a class="dynamic menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode" href="/Pages/About/default.aspx"><span class="additional-background ms-navedit-flyoutArrow"><span class="menu-item-text">WEIM overview</span></span></a></li><li class="dynamic"><a class="dynamic menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode" href="/Pages/JoinEIM.aspx"><span class="additional-background ms-navedit-flyoutArrow"><span class="menu-item-text">Join WEIM</span></span></a></li> </ul></li><li class="static dynamic-children"><span class="static dynamic-children menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode"><span aria-haspopup="true" class="additional-background ms-navedit-flyoutArrow dynamic-children"><span class="menu-item-text">About EDAM</span></span></span><ul aria-hidden="true" class="dynamic"> <li class="dynamic"><a class="dynamic menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode" href="/Pages/ExtendedDayAheadMarket.aspx"><span class="additional-background ms-navedit-flyoutArrow"><span class="menu-item-text">EDAM overview</span></span></a></li><li class="dynamic"><a class="dynamic menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode" 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alt="Search" src="/style%20library/images/gosearch15.png" /></a></td><td class="ms-sbLastcell"></td> </tr> </table> </div></div><div class="ms-clear"></div></div> </div> </div> </div> </div> </div> </div> <div id="pageTitle" style="display:none" class="ms-core-pageTitle"> <span id="DeltaPlaceHolderPageTitleInTitleArea"> </span> <div id="DeltaPlaceHolderPageDescription" class="ms-displayInlineBlock ms-normalWrap"> <a href="javascript:;" id="ms-pageDescriptionDiv" style="display:none;" data-accessibility-nocheck="true"> <span id="ms-pageDescriptionImage"> </span> </a> <span class="ms-accessible" id="ms-pageDescription"> </span> <script type="text/javascript">// <![CDATA[ _spBodyOnLoadFunctionNames.push("setupPageDescriptionCallout"); // ]]> </script> </div> </div> </div> <div class="ms-tableCell ms-verticalAlignTop"> <div id="DeltaPlaceHolderGroupActionsArea" class="ms-floatRight ms-noWrap"> </div> </div> <div class="ms-tableCell ms-verticalAlignTop"> </div> </div> <div id="contentRow eim-content-container"> <div id="contentBox" aria-live="polite" aria-relevant="all" role="main"> <div id="DeltaPlaceHolderMain"> <a id="mainContent" name="mainContent" tabindex="-1"></a> <style> .edit-mode-border { padding: 0px; width: 100%; padding-right: 36px; } .ms-rtestate-field { white-space: pre-wrap; } </style>  <div class="ms-descriptiontext ewiki-margin"> </div> <div class="eim-banner-homepage announcement"> </div>  <div class="eim-content-container"> <div class="eim-content"> <h1 class="sr-only">Western Energy Imbalance Market (WEIM)</h1> <div class="eim-home-left"> <div id="ctl00_PlaceHolderMain_bodyContentTop_label" style='display:none'>Page Content</div><div id="ctl00_PlaceHolderMain_bodyContentTop__ControlWrapper_RichHtmlField" class="ms-rtestate-field" style="display:inline" aria-labelledby="ctl00_PlaceHolderMain_bodyContentTop_label"><div class="eim-home-showcase" style="padding:10px !important;"><p>WEIM cumulative benefits approach $7 billion</p><p class="small"> <a href="https://www.caiso.com/about/news/news-releases/weim-cumulative-benefits-approach-7-billion" target="_blank">Read the news release</a></p></div><div class="eim-home-btns"> <a href="/Pages/About/QuarterlyBenefits.aspx"><img src="/Style%20Library/caiso/images/Benefits-ISOGHG-reportsButton297x140.jpg" alt="" style="width:297px;" /></a><a href="/Pages/JoinEIM.aspx"><img src="/Style%20Library/caiso/images/JoinWEIM-297x140.jpg" alt="" style="width:297px;" /></a><a href="/Pages/About/QuarterlyBenefits.aspx"></a>  </div></div> </div> <div class="eim-home-right"> <menu class="ms-hide"> <ie:menuitem id="MSOMenu_Help" iconsrc="/_layouts/15/images/HelpIcon.gif" onmenuclick="MSOWebPartPage_SetNewWindowLocation(MenuWebPart.getAttribute('helpLink'), MenuWebPart.getAttribute('helpMode'))" text="Help" type="option" style="display:none"> </ie:menuitem> </menu> <div class="eim-savings"> <h2>$374.25 million savings in Q4 2024</h2> <div class="eim-links"><a href="https://www.westerneim.com/Documents/iso-western-energy-imbalance-market-benefits-report-q4-2024.pdf" target="_blank">Read full report >></a><a href="https://www.caiso.com/about/news/news-releases/weim-cumulative-benefits-approach-7-billion" target="_blank">Read news release >></a></div> <a href="/Pages/About/QuarterlyBenefits.aspx" class="eim-savings-total"> <span class="total-top"><span class="total-label">Total</span><span class="total-amount">$6.62 billion</span></span> <span class="total-bottom"><span class="total-since">gross benefits since Nov 2014</span></span> </a> <small>(millions $)</small> <div class="eim-savings-chart"> <div class="chart-row odd"><div class="label">Arizona Public Service</div><div class="bar-container"><div class="bar"><div class="number outside">4.25</div></div></div></div> <div class="chart-row even"><div class="label">Avangrid</div><div class="bar-container"><div class="bar"><div class="number outside">8.73</div></div></div></div> <div class="chart-row odd"><div class="label">Avista Utilities</div><div class="bar-container"><div class="bar"><div class="number outside">2.66</div></div></div></div> <div class="chart-row even"><div class="label">BANC</div><div class="bar-container"><div class="bar"><div class="number inside">57.99</div></div></div></div> <div class="chart-row odd"><div class="label">BPA</div><div class="bar-container"><div class="bar"><div class="number outside">4.61</div></div></div></div> <div class="chart-row even"><div class="label">California ISO</div><div class="bar-container"><div class="bar"><div class="number inside">12.65</div></div></div></div> <div class="chart-row odd"><div class="label">EPE</div><div class="bar-container"><div class="bar"><div class="number outside">3.68</div></div></div></div> <div class="chart-row even"><div class="label">Idaho Power</div><div class="bar-container"><div class="bar"><div class="number outside">5.31</div></div></div></div> <div class="chart-row odd"><div class="label">LADWP</div><div class="bar-container"><div class="bar"><div class="number inside">34.21</div></div></div></div> <div class="chart-row even"><div class="label">NV Energy</div><div class="bar-container"><div class="bar"><div class="number inside">73.08</div></div></div></div> <div class="chart-row odd"><div class="label">NorthWestern Energy</div><div class="bar-container"><div class="bar"><div class="number outside">12.90</div></div></div></div> <div class="chart-row even"><div class="label">PacifiCorp</div><div class="bar-container"><div class="bar"><div class="number inside">46.58</div></div></div></div> <div class="chart-row odd"><div class="label">Portland General Electric</div><div class="bar-container"><div class="bar"><div class="number outside">8.17</div></div></div></div> <div class="chart-row even"><div class="label">Powerex</div><div class="bar-container"><div class="bar"><div class="number outside">0.84</div></div></div></div> <div class="chart-row odd"><div class="label">PNM</div><div class="bar-container"><div class="bar"><div class="number inside">23.35</div></div></div></div> <div class="chart-row even"><div class="label">Puget Sound Energy</div><div class="bar-container"><div class="bar"><div class="number inside">11.71</div></div></div></div> <div class="chart-row odd"><div class="label">Salt River Project</div><div class="bar-container"><div class="bar"><div class="number inside">11.95</div></div></div></div> <div class="chart-row even"><div class="label">Seattle City Light</div><div class="bar-container"><div class="bar"><div class="number inside">19.25</div></div></div></div> <div class="chart-row odd"><div class="label">Tacoma Power</div><div class="bar-container"><div class="bar"><div class="number outside">3.97</div></div></div></div> <div class="chart-row even"><div class="label">TEP</div><div class="bar-container"><div class="bar"><div class="number outside">4.61</div></div></div></div> <div class="chart-row odd"><div class="label">TID</div><div class="bar-container"><div class="bar"><div class="number outside">1.09</div></div></div></div> <div class="chart-row even"><div class="label">WALC</div><div class="bar-container"><div class="bar"><div class="number inside">22.66</div></div></div></div> </div> </div> </div> <script language="javascript"> $('.eim-savings-chart').addClass('loading'); var numberHighest; var numberTotal = 10; $('.eim-savings-chart .number').each(function(i){ var number = parseFloat($(this).text(), 10); if(i == 0 || numberHighest < number) { numberHighest = number; } i++; }); numberTotal += numberHighest; setTimeout(function(){ $('.eim-savings-chart .chart-row').each(function(i){ var number = $(this).find('.number').text(); var numberWidth = (parseFloat(number, 10)/numberTotal)*100 + '%'; $(this).find('.bar').css('width', numberWidth); i++; }); }, 100); </script> </div> </div> <div class="eim-background-gray"> <div class="eim-content"> <div id="ctl00_PlaceHolderMain_bodyContentBottom_label" style='display:none'>ISORichHTML</div><div id="ctl00_PlaceHolderMain_bodyContentBottom__ControlWrapper_RichHtmlField" class="ms-rtestate-field" style="display:inline" aria-labelledby="ctl00_PlaceHolderMain_bodyContentBottom_label"><div class="eim-content-wide"><table cellspacing="0"><tbody><tr><td> <img src="/Style%20Library/caiso/images/news-and-notifications-image-136x90.png" alt="" style="padding-top:8px;" /> </td><td style="width:10px;"></td><td><h4 class="ms-rteElement-H4"><a href="/Pages/notifications.aspx">News & Notices >></a></h4>See the latest developments in the Western Energy Markets and subscribe for news releases and notices.<br></td></tr></tbody></table></div></div> </div> </div>  <div style='display:none' id='hidZone'></div> </div> </div> <div id="DeltaFormDigest"> <script type="text/javascript">//<![CDATA[ var formDigestElement = document.getElementsByName('__REQUESTDIGEST')[0]; if (!((formDigestElement == null) || 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