CAISO/WEIM

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.
Shutterstock
California PUC Revisits Net Metering Plan
The California Public Utilities Commission proposed a new net-metering scheme for rooftop solar after months of controversy over its prior plan to cut credits.
CAISO
CAISO Finalizing Plan for WEIM EDAM
CAISO's draft final proposal for a day-ahead expansion of its Western Energy Imbalance Market is up for review this month, with a final plan due in December.
KB Home
Move-in Date Approaches for Calif. Microgrid Community
Residents will soon be moving into a new microgrid community in Southern California — a project that’s being called first of its kind in the state.
CAISO
WEIM Q3 Benefits Top $500M, Near $3B Total
CAISO's Western Energy Imbalance Market reached a record $526 million in benefits in Q3 and neared $3 billion in cumulative benefits since it started in 2014.
CAISO
CAISO Reports on Summer Heat Wave Performance
CAISO said it avoided September blackouts through a combination of public conservation, imported electricity and coordination with utilities and agencies.
NREL
Multiple Seaports Needed to Support Calif. OSW Goals
California will need about 1,300 floating wind turbines and a range of supporting seaports to meet its ambitious offshore wind goals.
NOAA
Risk from Variable Resources Increasing, WECC Says
WECC said the addition 80 GW of wind and solar resources to the Western grid in the next decade will require higher planning reserve margins than anticipated.
CARB
Pandemic Brings ‘Historic’ Decline to California GHGs in 2020
California’s GHG emissions dropped 8.7% in 2020, a decline that’s largely due to the impact of the COVID-19 pandemic, according to a new report.
Lion Electric
PG&E to Offer Nation’s First V2G Export Rate
Pacific Gas and Electric received regulatory approval to establish the nation’s first vehicle-to-grid export rates for commercial EVs, including school buses.
Shutterstock
CAISO Approves More Interconnection Enhancements
CAISO's Board of Governors approved additional interconnection enhancements to deal with the long queue of resources waiting to connect to its grid.

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