Search
March 19, 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.
Sempra Divesting Solar for LNG, Regulated Ventures
Sempra Energy is on-track to sell its renewable energy assets and invest the funds elsewhere, the company said in its third-quarter earnings call.
Generation Lifts NRG Energy Q3 Earnings
NRG Energy earned of $306 million last quarter, up 65% from the same period a year ago on strong returns for the company’s generation business.
NERC to Try Again on Inverter Rules
NERC stakeholders are expected to consider a new standard authorization request to address inverter-based resources after the Standards Committee rejected two proposed by CAISO.
NASA
UPDATED: Destructive Fire Drives Down PG&E Stock
PG&E is already falling under suspicion for starting the Camp Fire after one of the utility’s transmission lines was reported downed at the time and location of the fire’s ignition.
ACORE Forum Ponders ‘Energy Revolution’
ACORE's Renewable Energy Grid Forum took place at the Grand Hyatt San Francisco, within blocks of the headquarters of major tech companies.
Northwestern Energy
NorthWestern Energy to Join Western EIM
NorthWestern Energy said that it will join the Western Energy Imbalance Market in spring 2021, making it the 14th utility to announce plans to sign on.
U.S. Bureau of Reclamation
FERC OKs CAISO Changes to EIM Bid Adders
FERC approved CAISO’s proposal to limit the megawatt quantity of the bid adder for the Western Energy Imbalance Market.
U.S. Forest Service
Edison Takes Partial Blame for Wildfire in Earnings Call
Edison International’s president said that equipment owned by its Southern California Edison subsidiary was at least one cause of the Thomas Fire.
Western EIM Reports Record Benefits
CAISO said Monday its Western Energy Imbalance Market has produced more than a half-billion dollars in benefits for participants since its founding five years ago, including more than $100 million in benefits in the third quarter of 2018.
Western Grid’s Future Debated at CPREC-WIRAB Meeting
The formation of a Western energy market was a contentious topics of discussion at the fall joint meeting of CREPC and WIRAB.

Want more? Advanced Search