Variable operations and maintenance cost review 2023

Started: Jul 17, 2023

Abhishek Hundiwale

Through this triennially recurring stakeholder process, the ISO will review the default variable operations and maintenance adders and, if necessary, update these default values.


Proposal Development Decision Implementation Completed/Closed
Aug 23, 2023 Final proposal posted
Aug 23, 2023 Draft tariff language posted
Nov 21, 2023 FERC approval (ER23-2956)
Sep 28, 2023 Tariff amendment (ER23-2956)
Sep 20, 2023 Board of Governors approval
Dec 1, 2023 Activation
Implementation milestones