CAISO/WEIM
CAISO Board of GovernorsCalifornia Agencies & LegislatureCalifornia Air Resources Board (CARB)California Energy Commission (CEC)California LegislatureCalifornia Public Utilities Commission (CPUC)Other 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.
EIA
Despite record winter precipitation in California, hydroelectric generation in the Western U.S. fell to a 22-year low in the 2022/23 water year, largely due to drought conditions in Washington and Oregon.
CAISO
Fast-start pricing could fix certain “price anomalies” in CAISO markets more effectively than existing mechanisms for compensating ramping resources, the WEIM Governing Body’s market expert told the group.
Arizona Public Service
FERC rejected challenges to its new generator interconnection rules under Order 2023, while making minor modifications and extending the compliance date.
© RTO Insider LLC
CAISO scored simultaneous victories in heavily contested territory after Portland General Electric and Idaho Power both signaled their intent to join the Extended Day-Ahead Market.
NASA
The upcoming April 8 solar eclipse will run a course from central Mexico to Newfoundland, but grid operators far from its path of totality will be dealing with its impact.
CAISO
CAISO stakeholders and staff could soon be weighing two options for enabling the EDAM to track GHGs in a way that accommodates the patchwork of different carbon reduction programs across Western states.
West-Wide Governance Pathways Initiative
The West-Wide Governance Pathways Initiative has secured commitments of financial support from 24 utilities and other electricity-sector organizations and expects that list to grow.
Transwest Express
FERC approved a proposal to allow transmission lines outside California to join CAISO under a new subscriber-funded model that avoids allocating project costs to the ISO’s load-serving entities.
CAISO
CAISO's Department of Market Monitoring found that limits on WEIM imports last year led to increased transmission congestion in the ISO's markets.
Powerex
A new report from electricity marketer Powerex adds to the expanding debate around what transpired on the Western grid during a January cold snap that saw the Northwest forced to import large volumes of power.
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