We were engaged for the upgrade of existing electrical infrastructure in the city of Surrey in British Columbia, Canada. This area is experiencing fast electrical load growth and is expected to grow by 75% over the next 30 years resulting in an approximate increased demand of 1,000 MVA.
This greenfield substation has two 230 kV feeder buildings connected from the transformers by Iso Phase busbars and contain 25kV GIS switchgear modules and twelve reactors. The initial capacity of the transformers is 200 MVA that can be expanded to 400 MVA to meet future energy demands. The substation implements a breaker and third design, and provides flexibility for the future termination of four additional 230 kV transmission lines and two 230 kV shunt capacitor banks.
We were also responsible for modifications to the incoming 230 kV transmission line and the associated distribution design which included seven new distribution feeders and both overhead and underground electrical works. We successfully integrated the distribution and transmission construction into the substation to minimize disruptions.
Working closely with our client this substation was safely put in service in 2016.