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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.
Peak, PJM Detail Western Market Proposal
Power industry participants got their first “peak” at a potential organized market that could rival CAISO’s efforts to expand its own operations into the rest of West.
DOE NOPR Rejected, ‘Resilience’ Debate Turns to RTOs, States
FERC and grid operators will explore "resilience" following the commission’s rejection of Energy Secretary Rick Perry’s proposed rulemaking.
CAISO
CAISO: Tx Constraints Hinder Out-of-State Wind
California faces a “severe shortage” of transmission capacity needed to tap potential New Mexico and Wyoming wind resources, CAISO said.
© RTO Insider
CPUC Retires Diablo Canyon, Replaces Calpine RMRs
The California Public Utilities Commission (CPUC) issued several decisions that will affect the state’s energy resource mix and markets.
Court Remands PG&E Adder for CAISO Membership
The 9th Circuit challenged FERC's decisions allowing PG&E to include a CAISO participation adder in its transmission rates.
CAISO Players Urge Action on RMR, Other Topics
CAISO market participants have many opinions on how the ISO should prioritize the complex and urgent tasks on the ISO’s plate for 2018.
California Department of Water Resources
Report: Regulatory Failure Caused Oroville Incident
A “long-term systemic failure” of regulatory and industry practices caused the Oroville Dam crisis, an independent forensics team said in a new report requested by FERC.
PJM
Coal, Oil Use Surges, Gas Prices Spike in Week-Long Arctic Blast
Grid operators turned to coal- and oil-fired generation as Arctic air sent temperatures plunging to record lows from the Great Plains to the Deep South.
CAISO
CPUC Targets CAISO’s Calpine RMRs
The California PUC (CPUC) will vote on a proposal to replace reliability-must-run contracts between CAISO and Calpine.
Harassment Flap Could Hinder Calif. Energy Bills
Allegations of sexual harassment and workplace retaliation dominated the beginning of the 2018 session of the California State Legislature.

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