CAISO/WEIM
CAISO Board of GovernorsCalifornia Agencies & LegislatureCalifornia Air Resources Board (CARB)California Energy Commission (CEC)California LegislatureCalifornia Public Utilities Commission (CPUC)EDAMOther CAISO CommitteesWestern Energy Imbalance Market (WEIM)WEIM Governing Body
The California Independent System Operator serves about 80% of California's electricity demand, including the service areas of the state's three investor-owned utilities. It also operates the Western Energy Imbalance Market, an interstate real-time market covering territory that accounts for 80% of the load in the Western Interconnection.
CAISO
CAISO is finalizing a set of changes to its resource adequacy program, with plans to vote on three proposals at an upcoming Board of Governors meeting,
Western Energy
With California passing the bill designed to transition the governance of CAISO’s markets to an independent regional organization, new challenges await the West-Wide Governance Pathways Initiative as the coalition seeks to turn a once-elusive goal into reality.
brewbooks, CC BY-SA 2.0, via Wikimedia Commons
The Pacific Northwest is on track to meet energy efficiency goals set in the Northwest Power and Conservation Council’s 2021 power plan after having saved 160 aMW through improvements in 2024, the council said in a news release.
CAISO
Western Energy Imbalance Market prices increased sharply in the second quarter of 2025 compared with the same period in 2024, mostly due to higher natural gas prices at Western hubs.
© RTO Insider
The Northwest Power and Conservation Council provided additional details on how its ninth power plan will consider new federal policies that could impact the buildout of new resources and transmission.
Combined Thermal Resource
Controlled Thermal Resources has a new collaborator for its 500-MW geothermal energy plant in California’s Lithium Valley, where it is eyeing co-location of manufacturing or data centers.
EMC Engineering Services
The D.C. Circuit Court of Appeals upheld an earlier decision that sided with FERC on a PURPA case without using Chevron deference, agreeing with the commission's statutory interpretation.
Enel North America
SRP and Google are partnering to study the real-world performance of non-lithium-ion, long-duration energy storage technologies.
CAISO
After years in the making, CAISO released a price formation proposal intended to reduce “unnecessary” market power mitigation, strengthen reliability and provide consistent pricing incentives in the WEIM and future EDAM.
Office of Sen. Jeff Merkley
Six Western U.S. senators came out in support of the California legislation needed to transform CAISO’s market into an independent regional energy market, saying in a letter to Gov. Gavin Newsom the bill promises "improved grid reliability and significant energy cost savings.”
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