The ISO proposed business practice manual changes in 2017 to clarify when eligible intermittent resources are allowed to generate as capable and when they must follow their dispatch operating targets. Through this initiative the ISO will make tariff changes that clarify the existing policy, more accurately define dispatch operating target (DOT) and dispatch operating point (DOP), and conform to NERC COM 002-4 on the issuance of Operating Instructions.
Outcome: The ISO implemented the Dispatch Operating Target (DOT) tariff clarification on Feb. 1, 2021. This initiative allows Energy Intermittent Resources to automate their response to operational instructions that require the resource not to exceed their DOT. The ISO also proposed and made changes to business practice manuals to clarify when eligible intermittent resources would be allowed to generate as capable and when they must follow their dispatch operating targets. Through this initiative the ISO also made tariff changes that clarify the existing policy, more accurately, define dispatch operating target and dispatch operating point and conform to NERC COM 002-4 on the issuance of Operating Instructions. This initiative improves reliability during stressed system conditions.
| Proposal Development | Decision | Implementation | Completed/Closed |
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Aug 22, 2018 Third revised draft tariff language posted
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Oct 29, 2018 FERC approval (ER18-2380)
Sep 05, 2018Tariff amendment (ER18-2380) Jul 26, 2018 Board of Governors briefing |
Dec 2020 Deployment
Feb 2021 Activation |
Completed |
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http://www.caiso.com/Documents/Oct29-2018-LetterOrderAcceptingTariffRevisions-DispatchOperatingTargetTariffClarification-ER18-2380.pdf
Oct 29, 2018 FERC approval 11/17/2019
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http://www.caiso.com/Pages/documentsbygroup.aspx?GroupID=1D492ABB-FF5F-4A31-AD28-3F7D9488459E
Sep 05, 2018 Tariff amendment - dispatch operating target tariff clarification (ER18-2380) 09/05/2018
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https://stakeholdercenter.caiso.com/InitiativeDocuments/ThirdRevisedDraftTariffLanguage-DispatchOperatingTargetTariffClarification.docx
Third Revised Draft Tariff Language - Dispatch Operating Target Tariff Clarification 08/22/2018
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Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-DispatchOperatingTargetTariffClarificationTraining.pdf
Presentation - Dispatch Operating Target Tariff Clarification Training 08/10/2018
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In-person meeting |
Board of Governors meeting http://www.caiso.com/Documents/Briefing_DispatchOperatingTargetTariffClarifications-Presentation-Jul2018.pdf
Briefing on Dispatch Operating Target (DOT) Tariff Clarifications 11/17/2019
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https://stakeholdercenter.caiso.com/InitiativeDocuments/SecondRevisedDraftTariffLanguage-DispatchOperatingTargetTariffClarification.docx
Second Revised Draft Tariff Language - Dispatch Operating Target Tariff Clarification 07/12/2018
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Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/RevisedDraftTariffLanguage-DispatchOperatingtargetTariffClarification.docx
Revised DraftTariff Language - Dispatch Operating Target Tariff Clarification 04/26/2018
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Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/DraftTariffLanguage-DispatchOperatingTargetTariffClarification.docx
Draft Tariff Language - Dispatch Operating Target Tariff Clarification 03/22/2018
Presentation - Dispatch Operating Target Tariff Clarification 04/12/2018
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