Generator Upgrade Works – Penmaenbach & Headland Tunnels
Location:
North Wales
Sector:
Infrastructure
Service Offering:
Projects
Project Overview
Central Power Services (CPS) was commissioned to deliver critical standby power upgrades on the A55 in North Wales, replacing an aging generator at the Penmaenbach West Approach Tunnel and installing a new packaged system at the Eastbound Headland Tunnel.
These generators provide essential backup power for lighting, ventilation, and smoke extraction – vital to maintaining tunnel safety during network outages.
Replacing an aging generator at the Penmaenbach West Approach Tunnel and installing a new packaged system at the Eastbound Headland Tunnel
Challenges
- Tight delivery schedule to meet Welsh Government infrastructure commitments
- Complex logistics in confined tunnel environments
- Continuous power requirement during installation and transition
Our Solution
Central Power Services provided a complete turnkey solution, combining technical expertise with careful planning to minimise disruption.
Penmaenbach Westbound Tunnel
- Safe decommissioning and removal of the existing plantroom genset
- Temporary 500 kVA rental generator supplied to maintain power
- Installation and commissioning of a new 600 kVA standby generator
Headland Eastbound Tunnel
- Supply, installation, and commissioning of a 66 kVA packaged generator
- Custom weatherproof enclosure with coastal-grade paint finish for durability
Close collaboration with stakeholders throughout the design and delivery stages ensured compliance, safety, and smooth project execution.
Outcome
The project was completed on time in a tight timeframe ensuring compliance and uninterrupted safety systems for tunnel users.
The new standby power solutions provide enhanced reliability, improved resilience, and long-term support for one of North Wales’ most important infrastructure assets.
Working in Partnership
Collaboration was central to this project’s success. Central Power Services worked closely with the Welsh Government, principal contractors, and site teams from design through to commissioning, enabling quick decision-making, efficient delivery, and minimal disruption. This partnership-led approach delivered a seamless power upgrade that strengthens the ongoing safety and reliability of the A55 network.
Disclaimer
To protect the privacy and confidentiality of our clients, customer names and identifying details have been intentionally omitted or generalised in the case studies presented on this website. While the projects, outcomes, and solutions described are based on real engagements, certain details have been adapted to ensure client anonymity.
These case studies are designed to illustrate Central Power Services’ approach, capabilities, and impact across a range of industries. If you require further information about a specific project or would like to request a client reference, please contact us directly.
