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.
NV Energy wants to convert its last coal-fired power plant to a gas-fueled facility, as the utility continues to be plagued with cancellations and delays of planned solar projects.
CAISO scored a potentially important victory when the Balancing Authority of Northern California said it will pursue membership in the ISO’s Extended Day-Ahead Market — and not SPP’s Markets+.
Idaho Power asked FERC to overturn a $700,000 fine for what it called a minor metering mistake that had no real impact on the Western Energy Imbalance Market.
CAISO’s gas resource management working group is exploring challenges related to participation in ISO-run markets.
CAISO asked FERC to approve the rules for its EDAM and revisions to its existing day-ahead market, intended to more accurately forecast load.
The California PUC adopted a settlement over the massive natural gas leak at the Aliso Canyon Natural Gas Storage Facility in 2015 that includes a $71 million penalty against Southern California Gas.
States, RTOs and others warned DOE not to let transmission developers dominate the development of National Interest Electric Transmission Corridors.
While some stakeholders are ‘charmed’ by SPP’s market initiative effort, others urge need for deeper tie to CAISO.
The Western Energy Imbalance Market topped $4 billion in cumulative benefits in the second quarter of 2023, just six months after it topped the $3 billion mark.
FERC accepted CAISO's proposed tariff revisions following record-breaking numbers of interconnection requests in 2021 and 2023.
Want more? Advanced Search