ESB Galway 110kV GIS Substation

Project Name

ESB Galway 110kV GIS Substation


ESB Engineering and Major Projects


Bothar na Mine, Ballybrit, Galway City






The development consisted of the construction of a new twelve bay 110kV Gas Insulated Switchgear (GIS) building located entirely within the southern portion of the existing Galway 110kV Substation as well as associated site works.

A high risk site – with medium and high voltage underground and overhead electrical services located throughout – the project was delivered with an exceptional safety record and was completed without a single reportable incident or injury.


Key Packages

  • RC concrete works
  • Structural steel frame
  • Composite insulated roofing and cladding,
  • Mechanical and electrical building services
  • Internal finishes

Key Deliverables

  • A new 700m2 steel framed switchgear building
  • A 3m high stone clad perimeter RC concrete boundary wall
  • Various MV & LV underground electrical service diversions
  • Associated drainage and site works
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