Temporary microgrids can safely power some areas during a PSPS event

To support our customers during a Public Safety Power Shutoff (PSPS), we use microgrids to supply temporary power to some areas. Microgrids allow us to keep power on where it is safe to do so. Customers supported by these microgrids will experience one or two outages of up to four hours each.

Temporary Microgrids

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Temporary Microgrids

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Types of microgrids


We use two types of microgrids to provide temporary power during a PSPS, distribution microgrids and substation microgrids.


Distribution microgrids serve areas where the power lines are underground, or outside of high fire-threat areas or the PSPS weather footprint. They keep the power on for community resources, including:

  • Emergency and healthcare services
  • Gas stations
  • Schools
  • Grocery stores

Substation microgrids serve larger areas with thousands of residential and commercial customers. They’re located at substations impacted by a PSPS and operate with temporary generators instead of the substation’s usual transmission source. However, they’re only used if they serve an area that is safe to energize.



Frequently asked questions

Additional resources


For more information about microgrid backup power, email wildfiresafety@pge.com.


To get information on a current PSPS event, visit PSPS updates.


Find out how to prepare for a PSPS event.


Use our planning map to learn where a PSPS is more likely to occur.