Puget Sound Energy Maxwelton Substation and Transmission Line Projects

Puget Sound Energy project

Maxwelton Substation/Langley Tap electric projects complete

Project overview

To increase reliability for our customers on south Whidbey Island, Puget Sound Energy constructed a new 25 megavolt amperes (MVA) substation in 2016. Several projects that complement the new substation include upgrading a section of our existing 115 kV transmission line (Langley 15/16 feeder extension), replacing aging poles on a transmission line from Langley to Maxwelton substations and undergrounding a section of distribution line along Craw Road were completed as of 2020.

Craw Road undergrounding

Converted a short section of existing overhead distribution line to underground along Maxwelton Road from the Craw Road intersection across SR 525 to the Whidbey Island High School.

Langley 15/16 feeder extension

Upgraded the Langley 15/16 feeder extension, an existing single-phase low-voltage line, to a higher capacity three-phase line along Maxwelton Road south from Craw Road and extending onto French Road. This provides additional capacity to allow the new substation to back up electric load normally served by Langley substation, and greatly improved reliability of electrical service in Langley.

Langley Tap pole replacement

Replaced the aging wooden poles of the Langley Tap, an existing transmission line currently running from the Langley substation, along SR-525, Midvale Road, Maxwelton Road and Craw Road to the new Maxwelton substation.