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March 16, 2026

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.
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Fleet Electrification Will Require Smart Grid Technologies
The electrification of trucking fleets will require utilities to adopt smart grid technologies and design new rates, panelists said during a SEPA panel.
© RTO Insider LLC
Microgrids Face Cost, Valuation Challenges
“Public purpose” microgrids are struggling because of high costs and the lack of a widely accepted resilience metric, speakers told NARUC.
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Arizona to Weigh RTO Membership
Arizona has joined Colorado, Nevada and Oregon in exploring membership in an RTO in the Western Interconnection.
© RTO Insider LLC
Overheard at NARUC Summer Policy Summit 2021
More than 600 people attended the NARUC Summer Policy Summit in person and hundreds more watched via livestream.
PG&E
PG&E Proposes Undergrounding 10K Miles of Distribution
PG&E proposed burying 10,000 miles of distribution lines underground in high-threat fire areas of California.
National Weather Service/PG&E
PG&E Says Its Line May Have Started Dixie Fire
PG&E said one of its lines may have ignited the 30,000-acre Dixie Fire burning northeast of Paradise, a town destroyed by a PG&E-caused fire three years ago.
Eugene Zelenko CC BY-SA 4.0 via Wikimedia Commons
CAISO Urges Less Clothes to Avoid Blackouts
CAISO governors encouraged Californians to wear lighter clothing and turn up thermostats as a way to prevent capacity shortfalls this summer.
RTO Insider LLC
FERC Tosses NV Energy Complaint Against CAISO Summer Plan
FERC dismissed an NV Energy complaint related to CAISO’s plan to restrict certain wheel-through transactions when tight power supply threatens reliability.
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Western Drought Puts Hoover Dam Hydropower at Risk
Western drought has caused historically low water levels at hydropower facilities, including Lake Mead behind Hoover Dam and PG&E's major reservoirs.
U.S. Forest Service
CAISO Declares Emergency as Fire Derates Major Transmission Lines
CAISO issued a grid warning as a wildfire in Oregon threatened one of the major transmission pathways between California and the Pacific Northwest.

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