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May 22, 2025

California Independent System Operator (CAISO)

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Turlock Irrigation District to Join EDAM in 2027
California-based Turlock Irrigation District has agreed to join CAISO’s Extended Day-Ahead Market in 2027.
CAISO
CAISO Chooses Viridon to Develop Humboldt OSW Transmission Projects
CAISO selected Viridon, a power infrastructure development firm, to finance, build and operate new transmission lines and infrastructure in Humboldt County for planned offshore wind development.
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CAISO, PacifiCorp, PSCo All Close on Order 2023 Compliance
FERC partially approved three entities' Order 2023 compliance filings, directing them to address mostly minor — but a few substantive — issues in their submissions.
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Debate Lingers After BPA Day-ahead Market Decision
Though BPA removed any uncertainty by selecting SPP’s Markets+ over CAISO’s EDAM, the debate over whether BPA made the right choice likely will heat up as the West confronts a split into two major markets.
CAISO
CAISO Foresees Sufficient Resources for Normal Summer Conditions
California expects to meet its peak demand this summer under most weather conditions due to thousands of megawatts of new energy resources — almost all battery storage.
TransWest Express
Construction Begins on Utah Portion of TransWest Express Line

Construction began on the Utah terminal of the 732-mile TransWest Express transmission line, a project designed to carry Wyoming wind energy to the Southwest.

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Puget Sound Energy Inks Agreement to Join Markets+
Puget Sound Energy said it is joining Markets+, marking another win for SPP shortly after the Bonneville Power Administration issued its final market policy in favor of the day-ahead market.
CPUC
California Will Rely Heavily on Batteries to Meet Summer 2025 Peaks
California's grid is expected to meet peak demand this summer, with officials pointing to the massive growth in solar and storage resources as key.
CalCAA
CalCCA Study Touts Benefits of RA Trading at Hourly Level

The cost of electricity in California could be reduced if energy providers were allowed to trade power by the hour, a new study by the California Community Choice Association says.

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California Lawmakers Seek to Trump-proof Pathways Initiative Bill
New amendments to the proposed Pathways bill would include protections against possible attempts by President Donald Trump to influence California energy markets, such as pushing the state to buy coal-fired generation.

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