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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.
SPP
Colo. PUC Approves PSCo’s Markets+ Participation
The Colorado PUC voted to approve Public Service Company of Colorado's plans to join SPP’s Markets+, with commissioners split on whether the move is a step toward or away from full RTO participation.
CAISO
FERC Affirms Use of RTO Adder for CAISO Tx Developer
FERC affirmed the ability of an independent transmission developer to include an RTO adder in its CAISO formula rate, rebuffing a request by the California Public Utilities Commission to reject the company’s use of the incentive.
West-Wide Governance Pathways Initiative
Pathways Initiative Clarifies Near-term Division of Labor with CAISO
The West-Wide Governance Pathways Initiative will run its stakeholder processes separately from CAISO’s until the effort's regional organization is formally launched in 2028, even in areas of overlapping interest.
U.S. Army Corps of Engineers
BPA Customers to See Increased Power, Transmission Rates
Customers of the Bonneville Power Administration will see power rates increase by about 8-9% over the next three years while transmission rates will jump by an average of nearly 20%, the agency said.
Shutterstock
‘Mark Twain’ Summer Weather Eases CAISO’s Grid Operations

Below-average temperatures in California this summer have reduced demand and made electric grid operations uneventful so far, with the state reaching 40,000 MW of demand for the first time in July.

© RTO Insider LLC
New WRAP Task Force to Take on Treatment of CAISO Tx
A new Western Resource Adequacy Program task force has been charged with revising the WRAP tariff to clarify that participants can rely on a specific category of CAISO transmission service to count remote resources toward their “forward showing” requirements.
CAISO DMM
Battery Storage Revenue Average Trending Down in California

California’s fastest-growing energy resource — battery storage — is earning less net revenue each year, while capacity is forecast to continue to boom.

© RTO Insider
WRAP Task Force Explores Optimization Under Day-ahead Markets
A new task force will examine how the WPP’s WRAP can continue to operate efficiently under the new multimarket environment emerging in the West.
Shutterstock
FERC Proposes to Eliminate Western ‘Soft’ Price Cap
FERC is moving to rescind the West-wide wholesale electricity price cap mechanism it instituted in 2002 in response to widespread price manipulation during the Western energy crisis of 2000/01.
Andre m, CC BY-SA 3.0, via Wikimedia Commons
Calif. Pathways Bill Delayed After Orgs Withdraw Support, While Newsom Signals Backing for Effort
The author behind the bill that would allow CAISO to relinquish market governance to an independent RO has delayed a hearing after several organizations withdrew support for the proposed legislation.

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