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March 20, 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.
‘Hesitancy’ Around Western RTO, EIM Chair Says
Westerners still hold some “anxiety” and “hesitancy” about a new RTO in the region, says EIM Governing Body Chair Doug Howe.
© RTO Insider
EIM Governing Body Approves CAISO Bidding Flexibility
Western Energy Imbalance Market leaders endorsed CAISO’s controversial proposal to give generators more bidding flexibility.
© RTO Insider
PGE, BPA Sign 5-Year Hydro PPAs
Portland General Electric and the Bonneville Power Administration said Wednesday they have signed two agreements that will help PGE avert a generation shortage after it shuts down its coal-fired Boardman Generating Station in 2020.
Picker Seeks Guidance on IOUs, Aliso Canyon
CPUC President Michael Picker asked state lawmakers for guidance on the increasingly precarious financial health of the state's investor-owned utilities, which face growing risks stemming from wildfires.
Powelson: States Pushing RTOs’ Backs to the Wall
Some states are creating energy policies without enough regard for grid reliability, possibly forcing FERC to intervene, Commissioner Robert Powelson said.
PJM Chief Confident on Western Market Proposal
At a meeting of the Western Power Trading Forum, PJM CEO Andy Ott sat down with RTO Insider to discuss the new Peak Reliability/PJM Connext market proposal.
Peak Touts ‘Independent’ Western Market Plan
Peak Reliability and PJM officials promoted the independent and self-governing nature of their proposed Western energy market.
Sempra Energy
Sempra Joins ‘Three-Pronged’ Wildfire Front
Sempra Energy became the third California-based energy company to promise a “three-pronged” cost recovery effort related to wildfires.
Wildfire Costs Ignite Worry at CPUC, Legislature
California regulators and lawmakers are sounding the alarm over a possible decline in the financial and credit health of utilities stemming from wildfire risk and liability.
Calif. Lawmakers Relaunch CAISO Regionalization
A key California lawmaker is seeking comment this week on a revived effort to regionalize CAISO and create a multistate Western RTO.

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