275kV Substation | Mechanical, Electrical & IT Infrastructure

Hardtech Engineering Services were proud to be part of the construction team for a major new-build Utility & Energy Sector scheme. This project was a significant engineering undertaking, featuring a raised building on piled foundations designed specifically to mitigate local flood risks and navigate challenging ground conditions.

Working as part of a specialist construction team, we were involved from the initial cost-review phase through to final handover. Hardtech ES was responsible for the supply and installation of the complete mechanical, electrical, and IT infrastructure.

Scope of Work

The project required a high degree of technical expertise and a commitment to a demanding schedule. Our team delivered the full scope ahead of the original deadline while remaining strictly within the set budget.

  • Specialised HVAC & Control: We designed and supplied a bespoke BMS (Building Management System) to manage ventilation units and dampers within the 275kV switch hall.
  • Heavy-Duty Power: We installed 400v and 110v systems within the switch hall, alongside general small power and emergency lighting across the offices and technical areas.
  • Safety & Life Safety: We implemented an L1 Analogue Addressable Fire Alarm system, including the installation of intrinsically safe units specifically for the battery room environments.
  • Mechanical & Welfare: The project included full plumbing and sanitary ware for welfare areas, air conditioning for relay rooms, and trace heating for external pipework to ensure environmental resilience.

Core Services Delivered

  • Lighting Solutions
  • Emergency Lights
  • HVAC & BMS Design:
  • Fire & Security Systems
  • BMS
  • IT & Data Installation
  • Welfare plumbing
  • External trace heating.

The Result

Our proactive involvement from the early costing stages ensured the project remained commercially viable without compromising on the strict technical standards required for national infrastructure. Delivering a project of this complexity ahead of schedule reflects our team’s competence and our commitment to professional, efficient delivery.

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At Hardtech HV, we create, maintain, and upgrade High Voltage Distribution Networks for industrial and commercial clients, supporting modern.

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