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Puget Sound Energy substation project
Cascade substation project
Fall 2013 project updates
- Construction on the first phase of the Cascade substation upgrade was completed on schedule in December 2012.
- The second phase of construction began in early April 2013 and entails installing new equipment, energizing the substation and removing all the old equipment.
- During the week of Aug. 19, 2013, the substation was energized and customers began seeing full reliability benefits of the project. However, some construction activities, including landscaping and line work, will continue through the remainder of 2013.
Puget Sound Energy plans to upgrade the electric system to better serve customers in Cle Elum, Easton, Ellensburg, Kittitas, Ronald, Roslyn, Snoqualmie Pass, south Cle Elum and Thorp. PSE is expanding the capacity of the Cascade substation, located at 1980 SR 903 in Cle Elum, by installing a new 230-34 kilovolt transformer to serve existing load in the area. Currently, the substation is at its operating capacity. Additionally, we will be adding substation equipment (circuit breakers) that can provide back-up to existing power lines and reduce the number of customers affected by planned and unplanned outages. The footprint of the substation will significantly increase in size within PSE’s existing property (see before and after map).
Construction progress of the
Cascade Substation from an
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.
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.
Download these PDF files for more detail on PSE's Cascade substation project.
Before and after footprint map