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.
The Western Energy Imbalance Market Governing Body and CAISO Board of Governors were briefed on proposed changes to the WEIM resource sufficiency test.
In their last meeting of 2021, the CAISO governors elected a new chair and funded technology upgrades to settle billions of dollars in transactions annually.
The D.C. Circuit Court of Appeals said FERC erred in basing its decision on CAISO capacity procurement payments on a prior ruling.
CAISO proposed paying batteries to stay charged during the day in readiness for summer evening peaks to maintain resource adequacy in Western heat waves.
The CPUC fined Southern California Edison $550 million for major wildfires in 2017-18 and approved the utility's new $1.3 billion storage project.
A CARB workshop brought together experts to discuss what it will take to decarbonize California's residences.
The California PUC issued a highly anticipated and controversial proposal to revamp the way rooftop solar customers are paid for surplus generation.
EPA announced that President Biden intends to name California Public Utilities Commissioner Martha Guzman Aceves as administrator of the agency's Region 9.
N.M. regulators shot down Avangrid’s proposed acquisition of PNM Resources after officials pointed to Avangrid’s “demonstrated record of poor performance.”
The Los Angeles Department of Water and Power is betting big on generating electricity with green hydrogen out of sheer necessity, its top official said.
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