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Prince George to Terrace Capacitors Project

Capacitor station

What's new

Previously in 2021, we selected a location for the third capacitor station for further study. This site, adjacent to the existing Telkwa Substation, was selected based on indigenous inputs as well as safety, reliability, archaeological and environmental factors.

Upon further investigation, the Telkwa site has challenges and now we’re studying other site options near the Skeena Substation in Terrace.

The project involves constructing three new capacitor stations to increase the capacity along the 450-km, 500-kilovolt transmission line that runs between Prince George and northwest B.C.:

  • One station near Vanderhoof;
  • One station near Burns Lake;
  • One station near Telkwa.

Two of the three capacitor station sites are owned by BC Hydro. They’re located near Vanderhoof (CAP1) and Burns Lake (CAP2).

We'll also be adding a transformer to the Skeena Substation near Terrace to decrease the high voltage 500-kilovolt electricity to voltages suitable for downstream customers. The work is entirely within the substation fence and expansion is not required. 

View project map [PDF, 9.2 MB]

A number of industries in the North Coast such as mining and Liquefied Natural Gas (LNG) developments have requested power from BC Hydro. We’re proposing to increase capacity along the existing 500-kilovolt transmission line between Prince George and Terrace to meet the customer needs.

Capacitor stations contain equipment to boost the amount of electricity that a transmission line can carry. These stations are fenced, outdoor facilities that need to be constructed on flat land, adjacent to or near the existing transmission line. By using capacitor stations we can significantly increase the capacity of the existing transmission line in a cost-effective, safe, and reliable way.

Project construction is expected to start in 2023 at the earliest and the project in-service date is 2027/2028.

Reports & documents

Project Map – 2022 March [PDF, 9.2 MB]


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