The push to develop a resource adequacy program serving non-CAISO members of the ISO’s Extended Day-Ahead Market appears to be gathering momentum, with backers saying they aim to produce a draft design for the program in April.

CAISO’s Western Energy Imbalance Market surpassed $8 billion in cumulative economic benefits since its 2014 launch after providing participants with $415.65 million in gross benefits in the fourth quarter of 2025, according to an ISO report.

Future participants in CAISO’s EDAM have already held extensive talks about developing an alternative to the Western Power Pool’s WRAP for non-CAISO EDAM members, NV Energy confirmed in a filing with Nevada utility regulators.

FERC granted CAISO's request to remove the sunset date on the Western Energy Imbalance Market Assistance Energy Transfer feature, which has been used by more than 10 of the market’s balancing area authorities in recent years.

A new Brattle Group study examined the impact on planning reserve margins of an alternative Western resource adequacy program that includes expected participants in CAISO’s Extended Day-Ahead Market.

The West-Wide Governance Pathways Initiative is preparing to file the incorporation documents for the independent RO that will govern CAISO’s energy markets, while funding challenges remain.

The West-Wide Governance Pathways Initiative’s Launch Committee said it hopes to seat a permanent board by either next year or 2027 for the regional organization that will govern energy markets in the West.