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.
FERC approved the tariff for the Western Power Pool's Western Resource Adequacy Program, allowing the binding phase of the program to commence in 2025.
Soaring natural gas prices in December and January increased CAISO electricity costs by $4 billion, prompting the governor to ask FERC to investigate.
A key California lawmaker introduced a bill to allow CAISO to become a Western RTO by expanding its governance to include representatives from other states.
The electric sector must fundamentally reconsider how it measures and manages grid reliability, speakers on a WECC panel said.
A new coalition of trade and environmental groups says California must be in an RTO, bolstering a renewed push for CAISO to become a multistate organization.
FERC ordered show cause proceedings on PacifiCorp’s and NV Energy’s interconnection rules while approving changes to limit speculative projects in Nevada.
A judge said there is enough evidence to try PG&E on four manslaughter counts and other charges from the September 2020 Zogg Fire in Shasta County, Calif.
The California PUC, Energy Commission and CAISO signed an agreement that will help make CAISO's transmission planning more proactive, CEO Elliot Mainzer said.
The push for decarbonization will transform Washington from a key exporter of electricity to a net importer by mid-century, a state agency has found.
CAISO's Board of Governors and the Western Energy Imbalance Market Governing Body approved an extended day-ahead market for the WEIM, calling it a milestone.
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