Bold action to upgrade our system


Undergrounding is the process of burying powerlines. PG&E has two programs focused on undergrounding:


  1. Undergrounding as part of our wildfire safety work. This work also includes building stronger overhead equipment. You can learn more about other wildfire safety work when you visit our Community Wildfire Safety Program page.
  2. Rule 20 Program focused on undergrounding powerlines to beautify communities. More information about this program is below.

These efforts make our system safer. Undergrounding reduces ignition risk by nearly 99% in that location.


Expanding our electric system underground will:


  • Help prevent wildfires caused by equipment
  • Reduce safety power outages
  • Decrease the need for future tree work
  • Improve reliability
  • Protect the environment
  • Beautify our hometowns

See our progress


We are on track to underground at least 175 miles this year, more than doubling the mileage we completed last year



Data as of 11/17/2022

A graph in the form of a thermometer shows that PG&E has completed 129 of its 175-mile goal for 2022. To date, 74 percent of the year’s undergrounding goal has been met.

Meeting our state's climate challenges requires bold action. In 2021, we announced plans to underground 10,000 miles of powerlines. This work will take place in and near wildfire-risk areas. This is the largest program of its kind in the U.S.


WATCH OUR UNDERGROUNDING VIDEO

DOWNLOAD OUR UNDERGROUNDING FACT SHEET (PDF, 2.29 MB)

Find more information about undergrounding work plans, including maps, below.

For more information, you can contact us at wildfiresafety@pge.com or 1-877-295-4949.

PG&E also converts many miles of overhead electric facilities to underground annually. This work is completed by following the California Public Utilities Commission (CPUC) Rule 20 guideline that is an electric distribution tariff.


Rule 20 has three sections (A, B and C). The use of a particular Rule 20 section is determined by the type of area to be undergrounded and who pays for the work.


For more information on Rule 20, please see below. To view the current Rule 20 Annual Report (per Ordering Paragraph 14 of D.21-06-013), download the 2021 Rule 20 Annual Report (XLSX, 424 KB).