CAISO sent the California Legislature a summary of recent studies of Western regionalization, information intended to aid discussion of the ISO becoming an RTO.

The California PUC, Energy Commission and CAISO signed an agreement that will help make CAISO's transmission planning more proactive, CEO Elliot Mainzer said.

A new legislative push for multi-state CAISO governance and the ISO's drive to add an extended day ahead market top this year's agenda.

CAISO issued its final plan to add a day-ahead market to its real-time Energy Imbalance Market, and PacifiCorp said it would join if the plan is approved.

Energy leaders from California and other Western states met in a workshop to explore the benefits of developing regional markets, including one or more RTOs.

CAISO came dangerously close to ordering rotating outages Tuesdas demand hit a record high, but it managed to scrape by thanks to conservation efforts.

CAISO CEO Elliot Mainzer warned that this week poses the greatest risk of rolling outages this summer as record heat engulfs large parts of California.

Extreme weather, wildfires and supply-chain problems could make CAISO’s grid vulnerable to shortfalls of up to 10 GW through 2025, experts said.

The Western EIM took on BPA and Tucson Electric Power as new participants, marking the market’s largest single expansion since its founding.

A dry January and February are clouding the prospects for hydroelectric generation this summer following two years of severe drought in California.