The California Energy Commission (CEC) presents this Winter 2026–2027 California Gas Reliability Assessment (Winter Assessment) that assesses the risk of gas service curtailment to customers served by Pacific Gas and Electric (PG&E) and Southern California Gas Company or San Diego Gas and Electric (collectively, “SoCalGas”). Using CEC-produced demand forecasts and estimates of available supply, the CEC finds that the risk of curtailment for core customers (mainly residential and small commercial) and noncore customers (large users including factories and power plants) is low assuming continued available estimated winter supplies and forecasted demand for winter 2026–2027.
The assessment finds that on extremely cold winter days, the PG&E gas system must rely on withdrawals from independently owned underground gas storage facilities to meet demand. Additional strategies for meeting extreme cold weather demands include procuring gas from independent storage providers and issuing operational flow orders.
The assessment finds that SoCalGas can meet extremely cold winter day demands without curtailment of noncore customers due to having enough pipeline supply and storage withdrawal capacity.
