Substation Design & Commissioning

Over the past several decades, substations have become increasingly more complex in response to greater demand, new safety and regulatory requirements, environmental responsibility, advances in automation and communication, and distributed generation from renewable energy sources.

At Patterson & Dewar, we have designed hundreds of substations ranging from 4kV to 500kV for clients across the United States. Our electrical, civil and structural engineering teams deliver turnkey substation solutions, from initial planning to design and construction, all the way through testing and commissioning. Services include:

  • Site selection and land procurement
  • Substation design
  • Foundation design
  • Grounding design
  • Grading plans
  • SPCC plans and oil spill containment design
  • Control house design
  • Bus work and switch layout
  • Protective relaying and control design
  • Environmental assessments
  • Equipment specification and bidding assistance
  • Preparation of drawings, specification, bid and construction documents
  • Transmission system coordination
  • Project management
  • Construction management
  • Bid evaluation
  • Construction inspections
  • Equipment testing and commissioning
  • “As-built” documentation
  • SCADA and communications design, integration and testing
  • Distributed generation and peak shaving interconnection

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