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.
PG&E Announces Massive Shutdown to Prevent Wildfires
The escalating battle between bondholders and shareholders to control PG&E (NYSE:PCG) when it exits bankruptcy played out before Judge Dennis Montali.
Fearing Wildfires, PG&E to Cut Power to 800,000
PG&E [NYSE:PCG] will cut power to 800,000 customers in 34 northern counties beginning Wednesday morning to reduce wildfire risk during a severe wind event.
EVs Could Soak up Solar or Exacerbate ‘Duck Curve’
A Pacific Northwest National Laboratory study found increased adoption of EVs in California could alleviate or exacerbate the state's duck curve.
California Governor Signs Electricity, Wildfire Bills
California Gov. Gavin Newsom signed two dozen bills dealing with wildfire prevention and affecting the state’s electricity providers.
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.
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.
Creditor Group Joins Call to End PG&E ‘Exclusivity’
A notable group of claimants has added its voice to the chorus of parties asking a judge to end PG&E’s exclusive right to offer a reorganization plan.
CPUC Adds RAMP Costs to Rate Case for 1st Time
The California PUC authorized costs for a new safety program as part of San Diego Gas & Electric and Southern California Gas' general rate case.
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.
CPUC Opens Investigation of PG&E Bankruptcy Plan
The California PUC opened a formal examination into PG&E’s Chapter 11 reorganization plan, as bondholders trying to take over the utility upped the ante.

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