In response to the rotating blackouts that occurred during the August 2020 heat storm, the CPUC opened an Emergency Reliability rulemaking (R.20-11-003) to make more resources available on an expedited basis to prevent a recurrence of blackouts if the western United States experiences extremely high temperature, sustained weather events in summer of 2021.  This web page details efforts the CPUC is taking within and outside of this rulemaking to ensure sufficient resources are available to meet California’s electricity demand in summer 2021.

Rulemaking R.20-11-003 Efforts

IOU Advice Letters Submitted Pursuant to D.21-02-028

Monthly Reports

More Information


If you have any questions, please contact Jason Ortego of the CPUC's Energy Division at