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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.
Wildfire Liability, Criminal Charges Cloud PG&E Outlook
PG&E faces criminal charges and wildfire liabilities not included in last year’s bankruptcy settlement, company officials said in an earnings call.
Cold Snap Yields Record Q1 Benefits for Western EIM
CAISO's EIM provided its members $101.01 million in economic benefits during the first three months of 2021, an increase of 75% over a year ago.
With Wildfire Season Looming, BPA Prepares Shutoff Plan
BPA will this summer join the ranks of Western transmission providers adopting a public safety power shutoff plan to prevent wildfires.
Wheeling Debate Tests West, CAISO CEO Says
CAISO stakeholders are still wary of the new proposed wheel-through provisions the ISO has submitted to FERC for clarity on the complex issue.
CAISO Approves Controversial Wheeling Limits
CAISO’s board approved limits on wheel-throughs during strained system conditions, despite opposition from utilities and the EIM Governing Body.
EIM Governing Body Rejects Part of CAISO Summer Plan
The Western EIM Governing Body rejected CAISO’s proposal to head off summer capacity shortfalls by limiting wheel-throughs during times of scarcity.
FERC OKs Incentives for CAISO Tx Upgrade
FERC approved incentive rates for a project to upgrade the Citizens-S Line, an 18-mile wooden-pole transmission line in Southern Calif., to steel towers.
Glick, Robb Call for Tx Build in West
FERC Chair Richard Glick and NERC CEO James Robb: The West needs to build transmission lines to connect renewable resources to load.
FERC OKs CAISO RMR Agreement for 27.5-MW Plant
FERC approved a settlement between CAISO and the operator of the aging 27.5-MW Channel Islands cogeneration facility over a reliability must-run agreement.
© RTO Insider LLC
UPDATED: FERC Proposes to Narrow RTO Incentive
FERC voted to approve a supplemental NOPR that would scale back a transmission rate adder designed to encourage utilities to join RTOs.

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