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.
A CAISO operations shift manager recounted how and why the ISO declared its first Stage 1 emergency in 10 years on May 3.
The continued closure of the Aliso Canyon natural gas storage facility remains an issue for the summer readiness of the Southern California grid.
A new CAISO initiative could allow power producers a way to temporarily suspend the operation of an unprofitable generating plant.
CAISO’s wholesale costs to serve load last year fell by 9%, the lowest nominal expense since 2008, according to an annual market performance report.
CAISO experienced its first “Stage 1” grid emergency in nearly a decade, days after Southern California Gas' warning about Aliso Canyon.
Witness after witness at the FERC technical conference cited California competitive wholesale markets, often in an unflattering context.
CAISO is moving forward with an initiative meant to ease the integration of energy storage and distributed resources into its markets.
Pacific Gas and Electric isn’t having second thoughts about its strategy of capitalizing on California’s greenhouse gas reduction goals.
EIM transfers out of CAISO were on the upswing in March, re-establishing a pattern first seen last spring with California’s growing solar surpluses.
SPP named Keith Collins, CAISO manager of monitoring and reporting and former FERC official, as the new executive director of its Market Monitoring Unit.
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