Substation Design

ElectroNet offers an end-to-end design and project management service for the design and construction of high voltage substations up to 500 kV. Our experienced team can deliver customised solutions to meet your requirements, from green field sites through to refurbishments of existing installations. As we are specialists in electrical, protection, civil and communication design, we cover all aspects of a successful substation design.

Our team is experienced, consultative, and communicates efficiently at every stage of the process. Mitton ElectroNet frequently partners with our contracting sister company, ElectroNet Services, to provide design and build solutions. This history allows our designers to create solutions that are not only fit for purpose, but are easily constructible and operable whilst ensuring minimal disruption to supply throughout the project's lifecycle

Substation Design services include:

Design Services

  • Conceptual design and planning 500 kV to 11 kV (or less)
  • Detailed civil, structural and electrical design
  • Control, protection, metering, SCADA and communications
  • Power cable modelling
  • Switchroom building design
  • Substation cost estimation
  • Equipment specifications, contract documentation and administration
  • Design and installation standards
  • Design and the ‘turn-key’ supply of mobile substations

Project Management

  • Site supervision
  • Test witnessing
  • Commissioning
  • Programme monitoring
  • Contract administration
  • Quality and safety reviews


Westpower House
390 Blenheim Road
PO Box 6138,
Christchurch 8442,
New Zealand

P +64 3 335 1100


Technology House
Level 4
86 Victoria Street,
Wellington 6011,
New Zealand

P +64 3 335 1100


Level 1, Suite 3
27 Gillies Ave,
Auckland 1023,
New Zealand

P +64 9 300 3530