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.

CAISO's Western Energy Imbalance Market hit a record $739 million in member benefits in 2021, putting its total close to $2 billion since it launched in 2014.

The near shutdown of the California-Oregon Intertie by a wildfire renewed concerns about the vulnerability of major transmission pathways.

A drought in the West is cutting into hydropower supplies needed for summer reliability, especially in California, panelists in a USEA briefing said.

A spate of transmission projects is in the works to move renewables from remote regions of the West to urban load centers.

Supporters and skeptics of a plan to give the EIM’s Governing Body more joint authority with CAISO over changes to the market debated the matter.