Site Power HV/LV Electrical Design

What this is

Design of HV/LV electrical distribution networks for the Sizewell C tunnel construction site, including high-voltage network design, substation design, low-voltage distribution, and site lighting. The design must support power distribution to underground tunnel boring machines, pumps, conveyors, ventilation systems, and overground construction equipment across multiple compound areas.

Key points

• Deadline: 18 August 2026, 4:32 PM
• Estimated budget: GBP 100,000 (range GBP 50,000–100,000)
• Scope: Complete HV/LV electrical design for Sizewell C tunnel construction site including HV network, substations, LV distribution, and site lighting with Stage 4 drawings
• Design must comply with current British Electrical safety legislation and be agreed with CWA/Sizewell site team
• SME-suitable procurement
• Key deliverables: 11kV HV network design, substation design with earthing, LV network distribution, and site lighting design with schematics and cable routing

Who can bid

SME suitable; no explicit restrictions stated in the tender text provided

Money

Estimated value GBP 100,000 (range GBP 50,000–100,000)

Classification

CPV 71323100 — Electrical power systems design services 71334000 — Mechanical and electrical engineering services65320000 — Operation of electrical installations71314100 — Electrical services71321000 — Engineering design services for mechanical and electrical installations for buildings LondonUK