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.
Imports from the Southwest and Rockies helped the Northwest survive January’s cold, showing the region’s reliability is at a “tipping point,” WPP said.
CAISO wants to stop taking new interconnection applications this year as it works through the “unprecedented volume” of requests submitted for the previous study period.
Slower anticipated growth in California’s population has prompted state regulators to downwardly revise the electricity demand forecast used for grid planning.
CAISO’s WEIM last year hit $5.05 billion in benefits for its members since its inception in 2014, continuing the positive trend of growth tied to an expanding Western footprint.
The Bonneville Power Administration plans to issue a draft decision on its day-ahead market participation in August, followed by a final decision in November.
The study finds dividing CAISO’s EDAM from SPP’s Markets+ would create seams that pose a different set of problems than challenges seen at the boundaries of full RTOs in other parts of the U.S.
FERC released the latest iteration of its Common Metrics Report on ISO/RTO markets, which evaluates their performance and benefits.
Backers of the recently formed Western Transmission Expansion Coalition want to fill a void in the Western Interconnection by producing an “actionable” interregional transmission study.
Stakeholders have discussed the likelihood that there may be two day-ahead markets in the West, CAISO’s Extended Day-ahead Market and SPP’s Markets+ and/or RTO West.
Solar advocates petitioned FERC to take enforcement action against SRP for setting rates that allegedly discriminate against customers with rooftop solar.
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