June 24, 2022
Request for Comment
Change to Flexible Ramping Product Refinements proposal: Planned Decisional Classification posted, comments due 7/1/22

The California ISO has posted its planned decisional classification for its recently proposed change to the flexible ramping product changes developed in the Flexible Ramping Product Refinements initiative. This change is described in the Flexible Ramping Product Refinements - Implementation Update paper posted on May 18, 2022.


The change described in the paper consists of not reducing economic Western Energy Imbalance Market (WEIM) energy transfers to zero when a balancing authority area fails the WEIM’s resource sufficiency evaluation. The original approach, approved by the ISO Board of Governors with advisory input from the WEIM Governing Body in October 2020, would have reduced these economic transfers to zero when a balancing authority area fails the resource sufficiency evaluation.


The ISO plans to bring this change to the ISO Board of Governors and WEIM Governing Body for decision in July 2022, and file tariff changes in time to implement all the flexible ramping product refinements in fall 2022. ISO staff believes the WEIM Governing Body has joint authority with the Board of Governors over this change.


Stakeholders are encouraged to submit comments on the modified decisional classification by July 1, 2022, through the ISO’s commenting tool using the link on the initiative webpage.


Please contact Isabella Nicosia at or with any questions.

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