Metering and telemetry | California ISO

<!doctype html> <html lang="en"> <head> <meta charset="utf-8" /> <title> Metering and telemetry | California ISO</title> <meta name="description" content="Accurate metering of electricity generated or consumed, using telemetry to directly measure a generator or load, provides key data inputs."> <meta name="viewport" content="width=device-width, initial-scale=1" /> <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> <meta name="twitter:widgets:autoload" content="off"> <link rel="icon" href="/favicon.ico"> <link rel="icon" href="/icon.svg" type="image/svg+xml"> <link rel="apple-touch-icon" href="/apple-touch-icon.png">  <meta property="og:image" content="https://www.caiso.com/theme/img/caiso-share.jpg"> <script type="module">!function(){const e=document.createElement("link").relList;if(!(e&&e.supports&&e.supports("modulepreload"))){for(const e of document.querySelectorAll('link[rel="modulepreload"]'))r(e);new MutationObserver((e=>{for(const o of e)if("childList"===o.type)for(const e 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The use of telemetry to directly measure a generator or load participant allows the ISO to manage and monitor power generation in real-time. Metering and telemetry are mandatory tools for ensuring accurate revenue accounting and ISO operational visibility.</p> </div> <div data-block-type="content" class="col-12"id=""> <h2 class="border-bottom"id="metering">Metering</h2> </div> <div data-block-type="content" class="col-12"id=""> <h3 class=""id="operating-procedures">Operating procedures - 5700 metering process</h3> <p>Meter data represents the energy generated or consumed during a settlement interval. The ISO, ISO metered entities, and scheduling coordinator metered entities follow prescribed processes and procedures to ensure the data is settlement quality. These procedures complement, but do not replace, section 10 of the ISO Tariff and Business Practice Manual for Metering.</p><p><a href="/library/operating-procedures-5000-series-communications-and-administration">Access the 5700 - metering process operating procedures</a></p> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" id="meters">Meter installation, inspection, and certification</h3> <ul class="doc-list"> <li data-sort=""> <a href="/documents/meterandsiteverificationsheet.docx" >Meter and Site Verification Sheet </a><span class="time">08/28/2023, 11:58 AM</span> </li> <li data-sort=""> <a href="/documents/metermaintenance.docx" >Meter Maintenance</a><span class="time">08/28/2023, 11:58 AM</span> </li> <li data-sort=""> <a href="/documents/meterconfigurationworksheet.docx" >Meter Configuration Worksheet</a><span class="time">07/03/2023, 10:06 AM</span> </li> <li data-sort=""> <a href="/documents/meteringcontactform.docx" >Metering Contact Form</a><span class="time">02/07/2023, 9:28 AM</span> </li> <li data-sort=""> <a href="/documents/meterlnspectorcertificationagreement.docx" >Meter lnspector Certification Agreement</a><span class="time">10/15/2018, 2:14 PM</span> </li> <li data-sort=""> <a href="/documents/inspectoridquestionnaire.docx" >Inspector ID Questionnaire</a><span class="time">10/09/2018, 10:10 AM</span> </li> <li data-sort=""> <a href="/documents/inspectorapplicationform.docx" >Inspector Application Form</a><span class="time">10/09/2018, 10:10 AM</span> </li> <li data-sort=""> <a href="/documents/specification_isoloadmeters_mtr10-99.pdf" >Specification for ISO Meters </a><span class="time">07/21/2016, 9:28 AM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" ">Approved meters, installation, and inspection companies</h3> <p>An ISO metered entity seeking certification of its metering facilities is required to independently engage an ISO authorized inspector to perform the inspection, and request the ISO to perform the certification. It is the responsibility of the metered entity to ensure the inspector it engages is ISO authorized at the time of inspection.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/iso-authorized-inspectors.pdf" >ISO Authorized Inspectors</a><span class="time">09/03/2024, 4:07 PM</span> </li> <li data-sort=""> <a href="/documents/approvedisometers.pdf" >Approved ISO Meters</a><span class="time">09/29/2023, 8:11 AM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" id="metering-documentation-guidelines">Metering documentation guidelines</h3> <p>The metered entity provides schematics of the metering installation being considered for ISO certification. Such drawings must be dated, bear the current drawing revision number and show all wiring, connections and devices in the circuits.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/checklist-meteringandrigdrawingrequirements.pdf" >Checklist - Single and Three Line Drawing Requirements</a><span class="time">10/30/2024, 10:53 AM</span> </li> <li data-sort=""> <a href="/documents/fieldwork-guide.pdf" >Fieldwork Guide</a><span class="time">10/25/2024, 11:43 AM</span> <div class="desc"><p>Meter and RIG Fieldwork guide for CAISO participants.</p></div></li> <li data-sort=""> <a href="/documents/checklist-communicationblockdrawing.pdf" >Checklist - Communication Block Drawing</a><span class="time">01/14/2021, 8:38 AM</span> </li> <li data-sort=""> <a href="/documents/checklist-meterconfigurationandrigdetails.pdf" >Checklist - Meter Configuration and RIG Details</a><span class="time">01/14/2021, 8:38 AM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" id="metering-exemptions">Metering exemptions</h3> <ul class="doc-list"> <li data-sort="1"> <a href="/documents/metering-exemption-listing-report-2024.pdf" >Metering Exemption Listing Report 2024</a><span class="time">10/28/2024, 9:49 AM</span> </li> <li data-sort="2"> <a href="/documents/meteringexemptionlistingreportjan2023.pdf" >Metering Exemption Listing Report 2023</a><span class="time">12/29/2023, 2:48 PM</span> </li> <li data-sort="3"> <a href="/documents/meteringexemptionlistingreportjan2022.pdf" >Metering Exemption Listing Report 2022</a><span class="time">01/17/2024, 12:58 PM</span> </li> <li data-sort="4"> <a href="/documents/meteringexemptionlistingreport2021.pdf" >Metering Exemption Listing Report 2021</a><span class="time">01/03/2022, 8:31 AM</span> </li> <li data-sort="5"> <a href="/documents/meteringexemptionlistingreport2020.pdf" >Metering Exemption Listing Report 2020</a><span class="time">12/31/2020, 2:59 PM</span> </li> <li data-sort="6"> <a href="/documents/exemptionrequestform.docx" >Meter Exemption Request Form</a><span class="time">01/08/2020, 3:19 PM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" ">Station power program</h3> <p>Station power — the energy used to operate auxiliary equipment and other load that is directly related to the production of energy — can be converted from retail service to wholesale service.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/stationpowerapprovedportfolios.pdf" >Station Power Approved Portfolios</a><span class="time">12/26/2018, 1:49 PM</span> </li> <li data-sort=""> <a href="/documents/stationpowerend-datedportfolios.pdf" >Station Power End-Dated Portfolios</a><span class="time">12/26/2018, 1:49 PM</span> </li> <li data-sort=""> <a href="/documents/stationpowerapplicationsinprogress.pdf" >Station Power Applications In Progress</a><span class="time">09/03/2013, 2:12 PM</span> </li> <li data-sort=""> <a href="/documents/stationpowerportfolioapplicationform.doc" >Station Power Portfolio Application Form</a><span class="time">10/23/2012, 12:22 PM</span> </li> <li data-sort=""> <a href="/documents/stationpowerportfolioapplicationprocedure.pdf" >Station Power Portfolio Application Procedure</a><span class="time">09/12/2012, 12:30 PM</span> </li> <li data-sort=""> <a href="/documents/stationpowerprogramoverview.pdf" >Station Power Program Overview</a><span class="time">06/06/2006, 9:22 AM</span> </li> </ul> </div> <div data-block-type="content" class="col-12"id=""> <h2 class="border-bottom"id="submission">Meter data submission</h2> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" id="qualified-reporting-entity">Qualified reporting entity</h3> <p>The role of the qualified reporting entity (QRE) is to submit meter data associated with renewable energy on behalf of ISO metered entities (ISO polled) using the WREGIS application. The generator owner/agent needs to complete, sign, and submit original hard copies of the service request form and service agreement to begin the QRE process with the ISO.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/qualifiedreportingentityservicerequestform.doc" >Qualified Reporting Entity Service Request Form</a><span class="time">07/02/2018, 4:29 PM</span> <div class="desc"><p>Note: Information submitted on this document must match the entity name and punctuation as it appears on the Meter Service Agreement (MSA) for ISO Metered Entities in order for it to be considered for processing. </p></div></li> <li data-sort=""> <a href="/documents/qualifiedreportingentityserviceagreement.doc" >Qualified Reporting Entity Service Agreement</a><span class="time">07/02/2018, 4:29 PM</span> </li> <li data-sort=""> <a href="/documents/qualifiedreportingentity_qre.pdf" >Qualified Reporting Entity Service Request Application Process</a><span class="time">05/09/2016, 11:37 AM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" id="sqmd-requirements">Settlement quality meter data (SQMD)</h3> <p>Scheduling coordinator (SC) metered entities are required to submit Settlement quality meter data (SQMD) plans. The documents below contain technical information and supporting documentation for SC metered entities.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/sqmdresourcetemplatetutorial.pdf" >SQMD Plan Template Tutorial</a><span class="time">02/06/2023, 8:25 AM</span> </li> <li data-sort=""> <a href="/documents/newresourceimplementationenergyimbalancemarketonboardingprojectloader.xlsx" >New Resource Interconnection Energy Imbalance Market Onboarding Project Loader</a><span class="time">02/06/2023, 8:25 AM</span> </li> <li data-sort=""> <a href="/documents/sqmdplantemplate.docx" >SQMD Plan Template</a><span class="time">02/06/2023, 8:25 AM</span> </li> <li data-sort=""> <a href="/documents/meterdatarequestform.doc" >Meter Data Information Request Form</a><span class="time">07/02/2018, 2:31 PM</span> </li> <li data-sort=""> <a href="/documents/sqmdresourcetemplateadditionalmeteringdevicesform.docx" >SQMD Plan Template Additional Metering Devices Form</a><span class="time">05/24/2017, 8:01 AM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" ">Settlement quality meter data plan affirmation and scheduling coordinator self audit attestation</h3> <p>Scheduling coordinators must annually complete a self-audit of settlement quality meter data (SQMD) processes. This requires examining meter data processes to demonstrate appropriate controls for accurate reporting.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/scselfauditattestationform.docx" >SC Self Audit Attestation Form</a><span class="time">12/03/2019, 11:16 AM</span> </li> <li data-sort=""> <a href="/documents/schedulingcoordinatorselfauditfrequentlyaskedquestions.pdf" >Scheduling Coordinator Self Audit Frequently Asked Questions</a><span class="time">11/06/2019, 1:11 PM</span> </li> <li data-sort=""> <a href="/documents/sqmdplanaffirmationfaq.pdf" >SQMD Plan Affirmation Frequently Asked Questions</a><span class="time">08/30/2019, 5:25 PM</span> </li> </ul> </div> <div data-block-type="content" class="col-12"id=""> <h2 class="border-bottom"id="telemetry">Telemetry</h2> <p>Generating units and load participants must establish and maintain a data processing gateway between plant facilities and the ISO energy management system for the purpose of generation control and monitoring. </p><p>The ISO requires direct telemetry of participating generators and load. For those generating units providing regulation energy, a remote intelligent gateway (RIG) is required. For resources providing non-regulation ancillary services or supplemental energy, a data processing gateway (DPG) or other ISO-approved technology must be used. </p> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" ">Remote intelligent gateway testing and validation</h3> <p>The ISO has overall responsibility for validating real-time data collected through direct telemetry. The ISO executes this responsibility partially through requirements placed on the ISO participating generator which may include responsibilities satisfied by the resource’s scheduling coordinator. The documents below contain information for remote intelligent gateway (RIG) testing.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/telemetryrequirements_faqs.pdf" >Telemetry Requirements FAQs for PRR 1318</a><span class="time">01/12/2021, 10:05 AM</span> </li> <li data-sort=""> <a href="/documents/rigacceptancetest_rat_procedures.pdf" >RIG Acceptance Test (RAT) Procedures</a><span class="time">09/19/2016, 11:42 AM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" ">RIG certification</h3> <p>Required information and technical guidelines for direct telemetry.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/remoteintelligentgatewaysecuresocketlayervalidations.pdf" >List of Validated RIG Solutions</a><span class="time">11/23/2022, 8:36 AM</span> </li> <li data-sort=""> <a href="/documents/rig_dpgvalidationprocedure.pdf" >RIG/DPG Validation Procedure</a><span class="time">12/23/2015, 3:17 PM</span> </li> <li data-sort=""> <a href="/documents/rigengineeringanddeploymentguide.pdf" >RIG Engineering and Deployment Guide</a><span class="time">10/30/2007, 11:28 AM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h3 class="" ">Forms</h3> <p>The ISO requires information on the 24-hour contact sheet to contact the Generating Facility when there are telemetry issues.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/24hourcontact-operations.docx" >24 Hour Contact - Operations</a><span class="time">02/07/2023, 9:28 AM</span> </li> <li data-sort=""> <a href="/documents/remoteintelligentgatewaydetails.docx" >Remote Intelligent Gateway Details</a><span class="time">03/26/2021, 2:41 PM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h2 class="" ">Telemetry exemptions</h2> <p>The ISO has the authority to grant exemptions from certain ISO telemetry standards. An ISO participating generator must provide all required documentation in order to submit a request for a telemetry exemption.</p> <ul class="doc-list no-bullets"> <li data-sort="0"> <a href="/documents/telemetryexemptionrequestform.docx" >Telemetry Exemption Request Form</a><span class="time">08/15/2022, 2:45 PM</span> </li> <li data-sort="1"> <a href="/documents/telemetry-exemption-listing-report-2024.pdf" >Telemetry Exemption Listing Report 2024</a><span class="time">10/28/2024, 9:49 AM</span> </li> </ul> </div>  <div data-block-type="doc-listing" class="col-12 doc-listing"> <h2 class="" id="documents-required">Documents required for participation</h2> <p>Please provide required information to initiate certification, meter service and network connectivity agreements early in the process. Direct telemetry facilities for participating generators, participating loads, Proxy demand resources must establish the contractual agreements to participate.</p> <ul class="doc-list"> <li data-sort=""> <a href="/documents/meterserviceagreement-schedulingcoordinatorsinformationrequestsheet.doc" >Meter Service Agreement for Scheduling Coordinators Information Request Sheet</a><span class="time">07/18/2024, 2:02 PM</span> </li> <li data-sort=""> <a href="/documents/meter-service-agreement-for-iso-metered-entities-information-request-sheet.doc" >Meter Service Agreement for ISO Metered Entities Information Request Sheet</a><span class="time">11/09/2022, 11:59 AM</span> </li> <li data-sort=""> <a href="/documents/" >ISO Tariff, Appendix B.7 - Meter Service Agreement for Scheduling Coordinators</a><span class="time">03/21/2018, 7:42 PM</span> </li> <li data-sort=""> <a href="/documents/appendixb7_meterserviceagreement_scs_asof_jun12_2013.pdf" >Appendix B.7 - Meter Service Agreement for Scheduling Coordinators as of Jun 12, 2013</a><span class="time">03/21/2018, 1:50 PM</span> </li> </ul> </div> <div data-block-type="content" class="col-12"id=""> <h2 class="border-bottom"id="fieldwork">Fieldwork support requests</h2> <p>The Energy Data Acquisition Systems group provides fieldwork scheduling and support by appointment.</p> <p> <a class="btn btn-primary" href="/generation-transmission/metering-telemetry/fieldwork-support-requests">View the Fieldwork support request form</a> </p> </div> </div> </div> </div> </div> </div> </div> <div data-block-type="break" class="break bg-bluegray-100 border-top mt-6 pt-5" > <div class="container"> <div class="row"> <div class="col-md-8 col-xl-9"id=""> <div data-block-type="card" class="card "> <div class="row g-0 h-100"> <div class="col-md-4 d-flex justify-content-center align-content-center" style="background-color: #ecf2e8"> <svg id="taqkokcton-Layer_1" class="icon icon-color-custom card-img-horizontal" width="50%" 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<path d="M23.5,19H1.5a.5.5,0,0,1-.5-.5V2.5A.5.5,0,0,1,1.5,2h22a.5.5,0,0,1,.5.5v16A.5.5,0,0,1,23.5,19ZM2,18H23V3H2Z"></path> </svg> </div> <div class="col-md-8"> <div class="card-body "> <h4 class="card-title " id="application">Related application(s) and access</h4> <div class="card-text"><h5>RIG</h5><p>View how to install a certificate for a Remote Intelligent Gateway (RIG), Data Processing Gateway (DPG) or Inter Control Center Protocol (ICCP) and establish Energy Communications Network (ECN) connectivity.</p><h5>MRI-S</h5><p>View the Market Results Interface - Settlements (MRI-S) user guide on the application page.</p></div> <ul class="doc-list"> <li><a href="https://www.caiso.com/systems-applications/requesting-access-certificates" >Requesting access and certificates</a> </li> <li><a href="https://www.caiso.com/systems-applications/portals-applications/market-results-interface-settlements-mri-s" >Market Results Interface - Settlements (MRI-S)</a> </li> </ul> </div> </div> </div> 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d="M11.83,20H5.5A1.45,1.45,0,0,1,4,18.5V1.5A1.45,1.45,0,0,1,5.5,0h2A.5.5,0,0,1,8,.5a.5.5,0,0,1-.5.5h-2a.45.45,0,0,0-.5.5v17a.45.45,0,0,0,.5.5h6.33a.5.5,0,0,1,0,1Z"></path> </svg> </div> <div class="col-md-8"> <div class="card-body "> <h4 class="card-title " id="tariff-bpm">Related ISO Tariff and Business Practice Manuals</h4> <div class="card-text"></div> <ul class="doc-list"> <li><a href="/legal-regulatory/tariff" >ISO Tariff</a><span class="time">05/18/2024, 7:42 PM</span> <div class="desc"></div></li> <li><a href="/documents/section10-metering-asof-apr1-2024.pdf" >ISO Tariff, Section 10 - Metering</a><span class="time">04/05/2024, 11:14 AM</span> <div class="desc"></div></li> <li><a href="https://bpmcm.caiso.com/Pages/BPMDetails.aspx?BPM=Metering" target="_blank">Business Practice Manual for Metering</a><span class="time">05/18/2024, 7:43 PM</span> <div class="desc"></div></li> <li><a href="https://bpmcm.caiso.com/Pages/BPMDetails.aspx?BPM=Direct%20Telemetry" target="_blank">Business Practice Manual for Direct Telemetry</a><span class="time">05/18/2024, 7:42 PM</span> <div class="desc"></div></li> </ul> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </main> <footer id="footer"> <div class="fat-footer"> <div class="container"> <div class="row"> <div class="col-lg-5"> <h5>California ISO</h5> <ul class="row"> <li class="col-md-4 col-lg-6"> <a href="/about">About</a> </li> <li class="col-md-4 col-lg-6"> <a href="/emergency-notifications">Emergency notifications</a> </li> <li class="col-md-4 col-lg-6"> <a href="/about/news">Newsroom</a> </li> <li class="col-md-4 col-lg-6"> <a href="/legal-regulatory/business-practice-manuals">Business Practice Manuals</a> </li> <li class="col-md-4 col-lg-6"> <a href="/about/governance-committees">Governance and committees</a> </li> <li class="col-md-4 col-lg-6"> <a href="/legal-regulatory/tariff">Tariff</a> </li> <li class="col-md-4 col-lg-6"> <a href="/about/careers">Careers</a> </li> 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