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February 24, 2026

California Independent System Operator (CAISO)

CAISO Leads EIM Q2 Benefits, Exports
CAISO hauled in the largest share of the $39.52 million in benefits produced by the EIM during the second quarter.
Day-ahead Prices Going Negative in CAISO
Negative day-ahead prices surged in CAISO during the first quarter stemming from surpluses of solar and hydroelectric output.
CAISO Board Approves Aliso Canyon Rules Package
The CAISO Board of Governors greenlit new rules that allow the grid operator to constrain the operations of gas plants across the state and the EIM.
New CAISO Rules Spell Increased DER Role
The CAISO Board of Governors approved a set of market rules designed to aid the integration of distributed energy resources and energy storage.
Q2 2017 Earnings Briefs
Calpine, PG&E and Southern California Edison released their second-quarter earnings results last week.
RTOs to Congress: Don’t Lose Faith in Markets
RTO officials acknowledged their challenges but asked Congress not to depart from 20 years of supporting wholesale markets.
UPDATED: Aliso Canyon Resumes Injections
L.A. County officials asked a state court to halt the resumption of natural gas withdrawals from Aliso Canyon until more risks are analyzed.
NARUC: Growth in DER Creates New Challenges
Industry officials discussed the latest developments in distributed energy resources (DER) at the NARUC Summer Policy Summit.
Public Power Takes PJM Gripes to Congress
While PJM stakeholders were meeting to consider yet more changes to the Reliability Pricing Model, public power representatives took their case to Congress.
California Officials: Aliso Canyon Safe to Open
California officials cleared the Aliso Canyon natural gas storage facility to resume injections, even as momentum builds to permanently close the site.

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