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 new paper from Powerex is likely to reignite the debate between supporters of CAISO’s Extended Day-Ahead Market and SPP’s Markets+ just as the competition between the two markets approach critical junctures.
BPA CEO John Hairston said the agency is committed to President Donald Trump’s goal to “unleash American energy dominance,” while also revealing that about 200 staff have accepted the president’s deferred resignation offer.
With go-live dates for its first two participants looming in May and October of next year, implementation activities for CAISO’s EDAM are ramping up.
A band of incumbent utilities has collected case studies that they say demonstrate the need to instate or maintain the right of first refusal for the good of grid expansion.
A workshop on the West-Wide Governance Pathways Initiative has sparked praise for the proposal as well as concerns, including uneasiness over plans to share staffing between CAISO and a new regional organization that would govern Western electricity markets.
Southern California Edison told the California Public Utilities Commission it is reviewing videos suggesting a link between its equipment and the devastating Eaton Fire.
A bipartisan bill in the U.S. Senate would make it easier for utilities to clear trees around power lines on U.S. Forest Service land by not requiring a timber sale for the cut-down material.
California regulators have approved rules to streamline permitting of transmission projects, saying the move is needed to maintain grid reliability and reach state climate goals.
As the Trump administration forged last-minute agreements with Canada and Mexico to postpone steep new tariffs, the energy industry fretted about potential fallout for cross-border supply chains and wholesale electricity markets.
CAISO's Western Energy Imbalance Market provided participants $374.25 million in benefits during the fourth quarter of 2024, down about 4% from the same period a year earlier, according to an ISO report.
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