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Puget Sound Energy substation project
Maxwelton substation and transmission line projects
Summer 2015 project updates
To increase reliability for our customers on south Whidbey Island, Puget Sound Energy plans to construct a new 25 megavolt amperes (MVA) substation, upgrade a section of our existing 115 kilovolt (kV) transmission line, underground a section of distribution line, and replace aging poles on an existing transmission line (see project map).
This is a multi-year construction effort that will be built in phases.
In 2010, we rebuilt and relocated two miles of our existing 115 kV transmission line from the intersection of SR 525 and Coles Road to a point along our existing transmission line near the intersection of SR 525 and Useless Bay Avenue.
What is a substation?
Substations are critical links in the electricity distribution system, containing utility circuit protection, voltage regulation, and equipment that steps down higher voltage to lower voltage. Before reaching homes and businesses, power is routed through our transmission system to a substation where it is changed to a lower voltage that can be utilized by customers.
What is a transmission line?
Transmission lines are key elements in the electrical distribution system. These lines safely transport high voltage electricity from power generation sources like dams and wind generating facilities to substations in local communities. Transmission normally takes place at voltages of 55 kV and higher.
Committed to keeping you informed
PSE will continue to provide updates to the community. We will notify residents and businesses near the project area when construction will occur. We aim to complete the work with as little disruption as possible.