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January 16, 2025

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.
Washington State Department of Transportation
Heat, Fire and Supply Chain Woes Threaten California Reliability
Extreme weather, wildfires and supply-chain problems could make CAISO’s grid vulnerable to shortfalls of up to 10 GW through 2025, experts said.
brewbooks, CC BY-SA 2.0, via Wikimedia Commons
FERC Approves CAISO Intertie Penalty Price Revisions
FERC approved tariff revisions to correct a defect in how CAISO sets penalty prices for the relaxation of intertie transmission constraints.
Shutterstock
FERC Orders More Refunds from 2020 Western Heat Wave
FERC continued to tell utilities to refund premiums they earned on top of extraordinarily high prices in August 2020 during a heat wave.
NOAA
Summer Forecasts Spark Warnings of ‘Reliability Crisis’ at FERC
FERC commissioners expressed alarm over forecasts of potential supply shortfalls this summer in the West, ERCOT, MISO and SPP.
Travel Southern Oregon
PacifiCorp Wins Preliminary Permits for Oregon Pumped Storage
FERC issued PacifiCorp permits to study the feasibility of developing pumped hydro storage projects in Southern Ore., located near a major intertie with Calif.
Williamborg, public domain, via Wikimedia Commons
Big Renewable Projects Take Shape in Central Wash.
A new solar farm has been proposed for Benton County, Wash., while another massive renewable project in the county has passed one state hurdle.
Principle Power
OSW Advocates Urge California to Think Bigger
At a California Energy Commission workshop Wednesday, advocates of offshore wind urged state officials to plan for far more wind than is currently contemplated.
NERC 2022 Summer Reliability Assessment
West, Texas, Midwest at Risk of Summer Shortfalls, NERC Says
Drought, wildfires, plant retirements and transmission outages have elevated the risk of supply shortfalls in the West, Texas, MISO and SPP, NERC said.
California Governor's Office
California Governor Proposes $5B ‘Reliability Reserve’
California Gov. Gavin Newsom proposed adding $5 billion to his FY 2022-23 budget plan to secure 5,000 MW for grid reliability this summer and in coming years.
Pattern Energy
SunZia Transmission Project: Not a ‘Unicorn,’ but not ‘Repeatable’
A transmission developer's 16-year odyssey to deliver New Mexico wind to California is a cautionary tale with implications for the nation’s climate policy.

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