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.
Tacoma Public Utilities
The West-Wide Governance Pathways Initiative still grapples with political uncertainties and governance concerns despite efforts to fix those issues, proponents of SPP’s Markets+ contended.
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CAISO is considering how to apply fast-start pricing to the Extended-Day Ahead Market — a topic that has been a sticking point for some as entities across the West decide which day-ahead market to join.
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Stakeholders urged the Bonneville Power Administration to provide more transparency regarding the agency’s multibillion-dollar initiative to build and upgrade transmission to address evolving challenges for the region's grid.
WECC
A WECC report predicts annual demand in the Western Interconnection will grow from 942 TWh in 2025 to 1,134 TWh in 2034, although it says the region should have the resources necessary to meet that load.
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Portland General Electric’s rate hikes largely stem from increased wholesale power market costs, the utility wrote after Sen. Ron Wyden voiced concern that Oregon customers are struggling to pay their electricity bills.
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The Balancing Authority of Northern California became the third entity to formally join CAISO’s Extended Day-Ahead Market, following PacifiCorp and Portland General Electric.
Salt River Project
The joint announcement by APS, SRP, TEP and UniSource Energy marks a significant win for SPP after a string of victories for CAISO’s competing Extended Day-Ahead Market.
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The Pathways Initiative drew praise from many quarters with the vote to approve its “Step 2” proposal, but it was quickly apparent the development will do little to sway Markets+ supporters.
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The West-Wide Governance Pathways Initiative received a significant financial boost when DOE awarded nearly $1 million to underwrite its efforts to establish a Western “regional organization” to oversee CAISO’s WEIM and EDAM.
Powerex
Powerex intends to terminate a large portion of its rights on PacifiCorp’s transmission system in response to the utility’s plans to update its transmission tariff to align with CAISO’s EDAM.
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