May 17, 2021

FERC Rules in Favor of ESA, Rejects MISO’s Request to Extend Order 841 Implementation to 2025

On May 17, FERC issued an Order denying MISO’s three-year extension request for Order 841 implementation. In the Order, FERC’s stated reasons for this denial are that: (1) MISO has not demonstrated potential reliability impacts that warrant further delay; (2) existing resource registration options are not a sufficient substitute for storage resource participation in an interim period; and (3) MISO’s request is far broader than that approved for other RTOs. ESA, along with American Clean Power Association, Clean Grid Alliance, Advanced Energy Economy, and the Southern Renewable Energy Association, had jointly protested against MISO’s requested delay, arguing that MISO failed to meet the burden for a waiver of compliance by the previously-extended deadline of June 2022.

ESA is satisfied with the outcome and will continue working with members and other stakeholders to ensure that energy storage resources have a clear and timely path to full wholesale market participation at MISO and other RTOs/ISOs.


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