Search
March 20, 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.
EIM Entrance Fees Bump CAISO Revenue
CAISO’s first-quarter (Q1) revenues were $1.2 million more than it had budgeted, primarily because of entrance fees it collected for the EIM.
California to Require Sharp EV Charger Growth by 2025
California will need between 229,000 and 279,000 electric vehicle chargers at locations other than single-family homes by 2025, the California Energy Commission said.
CAISO
CAISO Moves to Optimize Short-Term Unit Supply
CAISO is proposing to quadruple the number of hours in its time horizon for short-term commitment of generation units to better address load peaks that occur later in the day when solar output drops off the grid.
© RTO Insider
CCAs Fight to Thrive in a Landscape They are Changing
The rapid growth of community choice aggregators (CCAs) in California has sparked criticism that they are “boutique” options catering to wealthier communities.
© RTO Insider
California RA: ‘Fear and Loathing’ in Redondo Beach
Speakers at the Infocast California Energy Summit said the state’s grid reliability will be increasingly at risk if it doesn’t soon address resource adequacy planning.
CAISO Board Approves Forecast Error Measures
The CAISO Board of Governors new imbalance conformance rules allow the ISO to account for errors in renewable energy forecasts.
UPDATED: PG&E Transmission Revenue Complaint Rejected Again
FERC rejected a request for rehearing by several Pacific Gas and Electric transmission customers.
NOAA
FERC Keeps Eye on ERCOT, CAISO as Hot Summer Approaches
FERC will be closely monitoring ERCOT and Southern California this summer as most of the country faces the likelihood of above-normal temperatures.
Occidental Chemical
FERC Sets PURPA Review; Powelson Targets 1-Mile Rule
FERC will review how it enforces the 1978 Public Utility Regulatory Policies Act (PURPA), with the commission’s treatment of the 1-mile rule a likely focus.
CAISO Updates ESDER Phase 3 Proposal
CAISO is taking comment on the latest revisions to its ongoing policy initiative to better facilitate the participation of energy storage and DER in its markets.

Want more? Advanced Search