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December 25, 2025

California Independent System Operator (CAISO)

Sarah Swenty/USFWS
Solar Inverter Problem Leads CAISO to Boost Reserves
CAISO will make permanent the practice of boosting its power reserves to account for utility-scale solar tripping offline because of an inverters problem.
Troubled Waters for Powerex in EIM
Powerex is navigating a turbulent relationship with EIM rules the company says undercut the value of its hydro power resources.
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Pot Industry Blazing a Path in Western Energy Landscape
The budding efforts to increase the energy efficiency of U.S. marijuana operations will become increasingly critical as the commodity grows into a global market, energy industry experts said Monday.
LaFleur, Glick Promise a Light Touch on Changing West
FERC Commissioners Cheryl LaFleur and Richard Glick told state regulators at the annual meeting of the WCPSC that they will take a light-handed approach as the West develops new market structures.
U.S. Army Corp. of Engineers
Calif. Senate OKs Utility Wildfire Cost Recovery
The California State Senate passed legislation that would allow the state’s investor-owned utilities to pass through the costs of wildfires to ratepayers.
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CPUC Approves Utility EV Infrastructure Programs
The California Public Utilities Commission (CPUC) authorized the state’s investor-owned utilities to recover $738 million for electric vehicles (EV) charging infrastructure.
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CAISO Hits Reset on Backstop Procurement Overhaul
CAISO is going back to the drawing board to overhaul its reliability-must-run (RMR) program, switching to a “holistic” approach.
CalFire Says PG&E Caused 4 Wildfires Last Year
Trees contacting Pacific Gas and Electric distribution lines caused four Northern California wildfires last year that burned about 9,400 acres, state investigators said.
California to Require Sharp EV Charger Growth by 2025
California will need between 229,000 and 279,000 electric vehicle chargers at locations other than single-family homes by 2025, the California Energy Commission said.
EIM Entrance Fees Bump CAISO Revenue
CAISO’s first-quarter (Q1) revenues were $1.2 million more than it had budgeted, primarily because of entrance fees it collected for the EIM.

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