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March 17, 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.
FERC Approves NorthernGrid Merger
FERC gave its blessing to the merger of Columbia Grid and Northern Tier Transmission Group to form NorthernGrid, a transmission planning region stretching eight states.
California PUC Adopts Electrification Pilot Programs
The California PUC created two pilot programs to jump start the state’s electrification of residential structures, devoting $200 million toward the effort.
CPUC Approves Big Boost in Storage, Solar Targets
The California PUC approved historic increases in the state’s clean energy targets, calling for almost 25 GW of renewable energy and storage by 2030.
CAISO Board OKs $141.7M Tx Plan, RMR Contracts
CAISO’s Board of Governors approved $141.7M in transmission spending and reliability-must-run contracts covering three power plants in Central California.
CAISO Protecting Control Room Staff
CAISO is focused on keeping its control room running and isolating key employees from COVID-19 risk, CEO Steve Berberich told the ISO's board.
FERC Upholds Ruling in PG&E Interconnection Case
FERC rejected PG&E’s request to rehear a case where the commission ruled interconnection customers could be harmed by changes occurring outside boundaries.
California Agencies, Utilities Amp up Virus Response
California’s grid operator, government agencies and utilities bolstered actions this week to prevent the spread of COVID-19.
Why 4 Colorado Utilities Joined CAISO EIM, not SPP WEIS
Four Colorado utilities decided to join CAISO’s Energy Imbalance Market instead of SPP’s Western Energy Imbalance Service because of the economic benefits.
FERC Rejects RTO Incentive Adder Rehearing
FERC said it won’t rehear a case on whether Pacific Gas and Electric deserves a $30 million annual incentive adder for staying in CAISO.
NYISO
NYISO, MISO Join Operators in Suspending In-person Meetings
NYISO and MISO joined PJM, ERCOT and CAISO in suspending in-person stakeholder meetings in response to the spreading COVID-19 coronavirus.

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