The rapid transformation of resources to a cleaner, variable and energy limited fleet is driving the need to re-examine the ISO’s Resource Adequacy program. In this initiative the California ISO, in collaboration with the California Public Utilities Commission and stakeholders, will explore reforms needed to the ISO’s resource adequacy rules, requirements, and processes to ensure the future reliability and operability of the grid.
| Proposal Development | Decision | Implementation | Completed/Closed | |
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| Phase 2 |
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Fall 2023
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Completed | |
| Phase 1 |
Mar 25, 2021 Revised draft tariff language posted
Feb 17, 2021 Final proposal posted |
May 28, 2021 FERC approval (ER21-1551)
Mar 29, 2021 Tariff amendment (ER21-1551) Mar 24, 2021 Board of Governors approval |
Jun 01, 2021 Deployment
Jun 2021 Activation |
Completed |
Phase 2 of this initiative explores flexible resource adequacy (RA) requirements, and must offer obligations and bid insertion rules.
Web meeting |
https://youtu.be/srZf-7XAzqs
Video - Resource Adequacy Enhancements - Oct 12, 2021 10/14/2021
Redlined Straw Proposal - Resource Adequacy Enhancements Phase 2 10/14/2021
Presentation - Resource Adequacy Enhancements Phase 2 - Oct 12, 2021 10/07/2021
Straw Proposal - Resource Adequacy Enhancements Phase 2 10/05/2021
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View comments |
OUTCOME: planned outage substitution - The ISO implemented the planned outage substitution functionality on June 7, 2021. This function ensures that all planned outages on Resource Adequacy resources will have substitute capacity within 24 hours of submission of the outage. It will also prevent the extension or expansion of planned outages without additional substitute capacity.
OUTCOME: operationalizing storage - The ISO implemented the Minimum State of Charge (MSOC) functionality into production on June 30, 2021. The Minimum State of Charge (MSOC) had triggered on several occasions when a Residual Unit Commitment (RUC) shortage was identified in the Day-Ahead Market. Overall battery participation on days when hot weather is experienced has been adequate, and there have been minimal intervals when the MSOC constraints have imposed restrictions. We expect there could still be several days when RUC shortages occur through about mid-September 2021, and the team will continue monitoring storage and implemented functionality through this period. So far, there are no significant concerns about storage participation on hot days.
Filing |
http://www.caiso.com/Documents/May28-2021-OrderAcceptingResourceAdequacyEnhancements-ER21-1551.pdf
May 28, 2021 Order Accepting Resource Adequacy Enhancements (ER21-1551) 06/01/2021
Mar 29, 2021 Tariff Amendment - Resource Adequacy (RA) Enhancements (ER21-1551) 06/01/2021
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Training |
https://www.caiso.com/Documents/Presentation-Resource-Adequacy-Enhancements-Phase-1-Apr-21-2021.pdf
Resource Adequacy Enhancements Phase 1 - Apr 21, 2021 Updated 10/29/2021
RA Enhancements Follow Up Questions 04/27/2021
RA Enhancements Phase 1 Training Video 04/27/2021
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https://stakeholdercenter.caiso.com/InitiativeDocuments/RevisedDraftTariffLanguage-ResourceAdequacyEnhancementsPhase1.docx
Revised Draft Tariff Language - Resource Adequacy Enhancements Phase 1 03/25/2021
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Web meeting |
http://www.caiso.com/informed/Pages/BoardCommittees/MarketSurveillanceCommittee/Default.aspx
Market Surveillance Committee meeting - Mar 23, 2021 09/02/2021
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Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/DraftTariffLanguage-ResourceAdequacyEnhancementsPhase1.docx
Draft Tariff Language - Resource Adequacy Enhancements Phase 1 03/03/2021
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View comments |
Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-ResourceAdequacyEnhancementsPhase1-Feb232021.pdf
Presentation - Resource Adequacy Enhancements Phase 1 - Feb 23, 2021 02/19/2021
Resource Adequacy Enhancements - Phase 1 Final Proposal 03/23/2021
Resource Adequacy Enhancements - Phase 1 Final Proposal - Redline 03/23/2021
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View comments |
Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-ResourceAdequacyEnhancementsSixthRevisedStrawProposal-Jan152021.pdf
Presentation - Resource Adequacy Enhancements Sixth Revised Straw Proposal - Jan 15, 2021 01/11/2021
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View comments |
Web meeting |
Day 3 of three-day meeting. https://stakeholdercenter.caiso.com/InitiativeDocuments/Day3Presentation-ResourceAdequacyEnhancements-DraftFinalPropsoal-SixthRevisedStrawProposal.pdf |
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Web meeting |
Day 2 of three-day meeting. Day 3 meeting is on January 7. https://stakeholdercenter.caiso.com/InitiativeDocuments/Day2Presentation-ResourceAdequacyEnhancements-DraftFinalPropsoal-SixthRevisedStrawProposal.pdf |
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Web meeting |
Day 1 of three-day meeting. Day 2 meeting is on January 6. https://stakeholdercenter.caiso.com/InitiativeDocuments/Day1Presentation-ResourceAdequacyEnhancements-DraftFinalPropsoal-SixthRevisedStrawProposal.pdf https://stakeholdercenter.caiso.com/InitiativeDocuments/UCAPAssessmentHoursApril2018-October2020.xlsx
UCAP Assessment Hours April 2018 to October 2020 12/23/2020
Draft Final Proposal and Sixth Revised Straw Proposal - Resource Adequacy Enhancements 12/21/2020
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View comments |
Web meeting |
http://www.caiso.com/Documents/ResourceAdequacyPortfolioAssessment-Presentation-Nov13_2020.pdf
Presentation - Market Surveillance Committee Meeting - Resource Adequacy Enhancements 11/12/2020
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Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-ResourceAdequacyEnhancements-Nov122020.pdf
Presentation - Resource Adequacy Enhancements - Nov 12, 2020 11/11/2020
Preliminary Portfolio Analysis - Resource Adequacy Enhancements 11/06/2020
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View comments |
Web meeting |
http://www.caiso.com/informed/Pages/BoardCommittees/MarketSurveillanceCommittee/Default.aspx
Market Surveillance Committee 10/07/2020
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Web meeting |
Day 2 of a two-day meeting. Materials for this meeting are available under the September 15 meeting activity below. |
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Web meeting |
This is Day 1 of a two-day meeting. Day 2 meeting is on September 17. https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-ResourceAdequacyEnhancements-Sep15-17WorkingGroup.pdf
Presentation - Resource Adequacy Enhancements - Sep 15 and 17 Working Group 09/14/2020
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View comments |
Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/CommentsTemplate-ResourceAdequacyEnhancements-FifthRevisedStrawProposal.doc
Comments Template - Resource Adequacy Enhancements - Fifth Revised Straw Proposal 07/30/2020
Presentation - Resource Adequacy Enhancements - Fifth Revised Straw Proposal 07/15/2020
Fifth Revised Straw Proposal - Resource Adequacy Enhancements 07/07/2020
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Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-ResourceAdequacyEnhancements-Jun102020.pdf
Presentation - Resource Adequacy Enhancements - Jun 10, 2020 06/08/2020
UCAP Counting Example 1 06/08/2020
UCAP Counting Example 2 06/08/2020
UCAP Counting Example 3 06/08/2020
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Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-ResourceAdequacyEnhancements-FourthRevisedStrawProposal.pdf
Presentation - Resource Adequacy Enhancements - Fourth Revised Straw Proposal 03/20/2020
Fourth Revised Straw Proposal - Resource Adequacy Enhancements 03/17/2020
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https://stakeholdercenter.caiso.com/InitiativeDocuments/ImportTariffMatrix-Feb042020.xlsx
Import Tariff Matrix - Feb 04, 2020 02/04/2020
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In-person meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/Day1Presentation-ResourceAdequacyEnhancements-ThirdRevisedStrawProposal.pdf
Day 1 Presentation - Resource Adequacy Enhancements - Third Revised Straw Proposal 01/06/2020
Day 2 Presentation - Resource Adequacy Enhancements - Third Revised Straw Proposal 01/06/2020
Agenda - Resource Adequacy Enhancements - Jan 7-8, 2020 01/03/2020
Third Revised Straw Proposal - Resource Adequacy Enhancements 12/20/2019
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In-person meeting |
http://www.caiso.com/Pages/documentsbygroup.aspx?GroupID=12CAE82A-7921-49EE-BED6-F6AFEAD4F958
Presentation - Market Surveillance Committee Meeting - Resource Adequacy Enhancements 12/13/2019
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In-person meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/DraftFinalProposal-LocalResourceAdequacy-AvailabilityLimitedResources-SlowDemandResponse.pdf
https://stakeholdercenter.caiso.com/InitiativeDocuments/SecondRevisedStrawProposal-ResourceAdequacyEnhancements.pdf
Second Revised Straw Proposal - Resource Adequacy Enhancements 10/03/2019
Agenda - Resource Adequacy Enhancements - Oct 9, 2019 10/07/2019
Presentation - Resource Adequacy Enhancements - Second Revised Straw Proposal 10/08/2019
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In-person meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/RevisedStrawProposal-ResourceAdequacyEnhancements.pdf
Revised Straw Proposal - Resource Adequacy Enhancements 07/02/2019
Agenda - Resource Adequacy Enhancements - Jul 8-9, 2019 07/03/2019
Presentation - Resource Adequacy Enhancements - July 8-9, 2019 07/05/2019
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In-person meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-ResourceAdequacyEnhancements-Apr8and92019.pdf
Presentation - Resource Adequacy Enhancements - Apr 8 and 9, 2019 04/08/2019
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In-person meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/StrawProposalPart2-ResourceAdequacyEnhancements.pdf
Straw Proposal Part 2 - Resource Adequacy Enhancements 02/28/2019
Presentation - Resource Adequacy Enhancements - March 6, 2019 03/05/2019
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In-person meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/StrawProposalPart1-ResourceAdequacyEnhancements.pdf
Straw Proposal Part 1 - Resource Adequacy Enhancements 12/20/2018
Presentation - Resource Adequacy Enhancements - Jan 23, 2019 01/22/2019
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In-person meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/IssuePaper-ResourceAdequacyEnhancements.pdf
Issue Paper - Resource Adequacy Enhancements 10/22/2018
Agenda and Presentation - Resource Adequacy Enhancements - Oct 30, 2018 10/29/2018
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