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Maintaining a reliable energy system

We know our customers count on us to provide safe and reliable energy. It’s not a responsibility we take lightly. Take a look at the different ways in which we’re working to maintain, upgrade, and modernize our energy infrastructure.

Electric system

PSE crews are hitting the streets every day of the year to provide you with safe and reliable electric service.

Natural gas system

Learn how we maintain and inspect the PSE natural gas system — interconnected across some 2,900 square miles over six counties.

PSE has a comprehensive strategy to improve electric system reliability.



We inspect and trim trees along 2,500-3,000 miles of power lines every year.

Tree trimming program

Nearly 60% of PSE’s electric distribution lines are buried underground.



Installing “tree wire” can reduce branch related outages by more than 95%.



We’re modernizing the grid by investing in new technologies.

Grid modernization

We’re maintaining our infrastructure to better serve our customers.

Current system improvement projects