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December 22, 2025

California Independent System Operator (CAISO)

FERC to Probe Order 1000 Competition Exemptions
PJM, ISO-NE and SPP appear to be thwarting Order 1000’s intent to open transmission projects to competition by abusing the “immediate need” exemption.
RTO Responses Reveal Uneven Landscape for DERs
CAISO, ISO-NE and NYISO look to be the pacesetters in opening the country’s organized electricity markets to greater participation by DERs.
UPDATE: Judge Admits Takeover Plan as PG&E Starts Blackouts
PG&E shut down power to large swaths of its Northern California service territory, citing gusty winds that could cause utility-sparked conflagrations.
CAISO Goes 2 for 3 on EIM Hydro Rule Changes
FERC approved two CAISO proposals to address concerns that the EIM’s rules constrain hydroelectric operations and undercut the value of resources.
FERC Denies Rehearing over RTO Adders
FERC again upheld the RTO incentives it previously approved for Southern California Edison and PG&E, rejecting rehearing requests by California regulators.
Bonneville Power Signs Agreement with CAISO EIM
The Bonneville Power Administration signed an implementation agreement with CAISO to begin participating in the Western Energy Imbalance Market in 2022.
FERC Order Briefs: Sept. 19, 2019
A roundup of FERC's orders issued at the commission's open meeting Sept. 19, 2019.
CAISO Takes Step Toward EIM Day-ahead Market
The CAISO Board of Governors and EIM Governing Body approved launching a stakeholder process to examine an extended day-ahead market.
CAISO, CPUC Warn of ‘Reliability Emergency’
CAISO’s Board of Governors heard that the ISO could face capacity shortages as soon as next year if steps aren’t taken to address the potential shortfall.
San Diego OKs Community Choice Plan
San Diego and neighboring cities plan to form a community choice aggregation (CCA) program that would be California's second largest.

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