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March 18, 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.
CAISO
FERC Approves Incentives, Tariff for SWIP-North
FERC granted Great Basin Transmission’s request for incentives and a transmission owner tariff for its SWIP-North line – rejecting arguments that the project no longer makes sense with the cancellation of the Lava Ridge wind farm. 
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CAISO Board Approves 2 Key RA Program Proposals
CAISO’s Board of Governors approved two proposals intended to improve how the ISO calculates resource adequacy values and tracks RA supply.
Seattle City Light
WRAP Wins Commitments from 16 Entities

Sixteen entities have committed to participating in the Western Resource Adequacy Program’s first financially “binding” season covering winter 2027/28, the Western Power Pool said.

Shutterstock
PacifiCorp Next to Leave WRAP After Raising Concerns
PacifiCorp joins other utilities leaving the Western Power Pool’s Western Resource Adequacy Program just before the deadline to commit to the program’s first binding phase.
CAISO
Analysis Finds ‘Material’ Parallel Flow Effects in CAISO from PacifiCorp BAA Transactions
In an ongoing high-stakes analysis, CAISO has determined that transactions between PacifiCorp’s two balancing authority areas can “materially” affect parallel flows on certain CAISO transmission constraints.
Camerafiend, CC BY-SA-3.0 via Wikimedia Commons
4 Entities Join NV Energy in Exiting WRAP, While Idaho Power Commits

Calpine, Eugene Water & Electric Board, PGE and PNM joined NV Energy in leaving the Western Resource Adequacy Program, while Idaho Power signaled its continued commitment.

CAISO
‘Aggressive’ EDAM Schedule ‘Going Smoothly’ for PacifiCorp, PGE

PacifiCorp and Portland General Electric remain on track to join CAISO’s Extended Day-Ahead Market on their planned entry dates, although the schedule remains “very tight and very aggressive."

CAISO
Pathways Co-chair Maps out ‘Enhanced’ Stakeholder Process for Western Markets
The West-Wide Governance Pathways Initiative’s Launch Committee Co-Chair Pam Sporborg said the stakeholder process of the new regional organization that will oversee CAISO’s energy markets is an evolution of the ISO’s Regional Issues Forum.
CPUC Public Advocates Office
CPUC Hears Cacophony of Protests to Proposed PG&E Rate Increases
Key organizations across California voiced strong opposition to Pacific Gas and Electric's proposed rate increases that are under review at the California PUC.
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FERC Sides with San Francisco in PG&E Cost Allocation Dispute
FERC sided with San Francisco in the city’s dispute with PG&E over cost allocation provisions in a wholesale distribution contract, finding PG&E improperly required the city to bear the cost of system upgrades instead of allocating costs among all beneficiaries.

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