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Puget Sound Energy transmission line project

Silverdale Tap extension to Valley Junction substation


2018 project updates

  • Project is evaluating several route options.
  • PSE will continue to meet with various jurisdictions and governments regarding possible route locations.

Project overview

The Silverdale area of central Kitsap County is served electricity primarily from Silverdale and Central Kitsap substations. These two substations are served from BPA Kitsap-Valley Junction 115 kilovolt (kV) line.  This line experienced six outages in the last five years affecting an average of 5000 customers during each outage.

Several reliability, capacity, and compliance electric projects are in the planning stages for Kitsap County.  They include the construction of an 115kV transmission line from the Silverdale substation to the Valley Junction substation and the construction of an 115kV transmission line from the Valley Junction substation to a three-way pole at Foss Corner.
PSE’s current design and operating standards require that each electrical substation be served by two transmission lines. PSE’s Silverdale and Valley Junction substations are served by only one transmission line. If this single line goes down or requires maintenance, all customers served by that substation lose power.
This project will connect another transmission line to the substations, or create a loop, so the substations can receive power from two different power lines.  The project also provides additional capacity to serve expected growth in Seabeck and the western shorelines of Hood Canal.