The Extended Day-Ahead Market took center stage at CAISO in 2025 as the ISO tabled other long-term initiatives to ensure the market’s timely launch in May 2026, with PacifiCorp as its first participant.

With 16 binding participants and 58 GW worth of load committed, the Western Power Pool’s Western Resource Adequacy Program aims to build on the momentum in 2026 and prepare for more members.

PacifiCorp filed a partial motion to dismiss an Oregon complaint by Amazon Data Services that alleged the utility has breached agreements to provide electric service to four data centers in the utility’s service territory.

Idaho Power can continue to sell power at market-based rates after it acquired more than 200 MW in resources 2023 and 2024, FERC ruled.

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.

Citing developments within WPP’s Western Resource Adequacy Program, the Oregon Public Utilities Commission waived penalties for independent power suppliers participating in the state’s alternative RA program.

PacifiCorp is hiring additional employees to prepare for CAISO’s Extended Day-Ahead Market next year, with staff expecting the launch will bring a few “scratches and bruises.”

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.