Wildfire Mitigation

Due to the dense vegetation and dry brush that characterize much of our landscape, the Lake Tahoe Basin and surrounding forested areas have been designated either “Tier 2” (Elevated) or “Tier 3” (Extreme) fire risk areas by the state’s High Fire Threat District Map.

Liberty is taking aggressive steps to mitigate the risk of wildfires in the communities we serve. Outlined below are the key components of our Wildfire Mitigation Plan that we are executing to keep you and your family safe.

Wildfire Mitigation and PSPS Town Halls
Wildfire Mitigation and PSPS Town Halls

Please join Liberty Utilities at our upcoming virtual Town Halls. Learn more about what Liberty is doing to limit wildfire risks and our PSPS plan.
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Public Safety Power Shutoff

A Public Safety Power Shutoff (PSPS) is a safety procedure utilized by electric utilities to proactively turn off power when and where conditions present an increased wildfire risk. The practice of de-energization, which is becoming more and more frequent, is supported by the California Public Utilities Commission (CPUC) as a safety best practice.

In partnership with fire weather experts, Liberty monitors real-time weather data and forecasts and regularly tests fuel moisture during the fire season. If it is determined that the forecasted conditions meet or exceed safety thresholds, Liberty will initiate a PSPS.

In the event that a PSPS is a possibility, Liberty will attempt to contact customers through calls, texts and emails using the contact information on file. We encourage you to call a customer service agent at 1-800-782-2506 or click HERE to check or update your account’s contact information to be sure you receive these important notifications.
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Infrastructure Hardening

Infrastructure hardening is an ongoing system infrastructure improvement and replacement process aimed at lowering the potential of fires sparked by electric infrastructure. Over the next several years, Liberty will conduct the following improvements to support this process:

  • Install covered conductors (insulated wire)
  • Replace conventional fuses with limiting fuses
  • Test and replace aging poles
  • Enhance grid topology

 Vegetation Management

Liberty crews are deployed year-round throughout the region to inspect trees and vegetation in the vicinity of power lines. In order to comply with state law and safety best practices, any tree or vegetation that has grown too close to power lines will be trimmed or removed to mitigate any wildfire risk.

When trees are identified for trimming, crews are instructed to prune branches and vegetation back to a minimum of 12 feet from the high voltage power lines to ensure adequate clearance is maintained over the maintenance cycle period. Crews will additionally identify any trees for removal that are dead, diseased or structurally unsound, despite being within the acceptable clearance zone, if they have the potential to fall on power lines.

Customers should never attempt to trim trees in the vicinity of power lines, due to the danger and risk of coming in contact with power lines.

Liberty Arborists can inspect a vegetation powerline related issue for customers who believe there may be a hazard to the electrical infrastructure.  Liberty Utilities Arborists will determine whether the reported vegetation issue requires work and notify you of their findings.  If you spot a tree or branch you feel may be a hazard, submit a vegetation inspection request HERE or call 530-546-1787.

Liberty Utilities' PSPS Preparation Presentation

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Liberty Utilities' 2019 Wildfire Mitigation Plan

2019 WMP  

Discovery/Data Requests

Near PSPS Event Report

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De-Energization Progress Report 

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