ProjectsDesignPonderosa Substation, West Kootenay, BC

Ponderosa Substation, West Kootenay, BC

  • TYPE:
  • Design
  • Christina Lake BC


84MVA – 161kVLL:25kVLL

Design Start: Jan 2018
Station Energized: Nov. 2018


An 84MVA substation was required to power a crypto-mining facility in the West Kootenay area of BC. Primary was engaged as the main design contractor for the design of the substation and on-site distribution.

The substation design included structural and electrical for the following components:

  • Interconnecting A-Frame structure
  • Metering CVTs and CTs
  • Point-On-Wave 161kV circuit breaker
  • 84MVA Power Transformer and ancillary systems
  • 2000A 25kV disconnect switch structure
  • 2 x 800A recloser structures for distribution feeder egress
  • Control building layout
  • Protection study and settings specification
  • Backup battery system specification and design
  • SCADA integration with local utility


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