High Capacity Power Infrastructure Installation for a New Heat Recovery Unit

A leading UK manufacturer invested in a new Heat Recovery Unit (HRU) to improve site energy efficiency, reduce operational costs, and support long-term sustainability objectives.

To bring the system online, the client required a specialist industrial electrical contractor capable of installing high-capacity power infrastructure to supply multiple large industrial fans and a central Motor Control Centre (MCC).

We delivered a complete installation — from heavy-duty cable ladder containment to large-format XLPE/SWA sub-main cabling — providing a safe, compliant and high-performance electrical supply for the new HRU.

Planning a similar industrial upgrade? Speak to our team about delivering safe, scalable electrical infrastructure.

The installation required dedicated sub-main supplies to:

• 160 kW Exhaust Fan — via 4 core 240mm² XLPE/SWA
• 132 kW Intake Fan — via 4 core 185mm² XLPE/SWA
• 60 kW MCC Control Panel — via 4 core 50mm² XLPE/SWA

All works were delivered to industrial-grade specifications, ensuring long-term reliability within a high-demand manufacturing environment.

We installed a robust cable ladder containment system designed to safely support and route multiple high-capacity sub-main cables.

The system was:

• Engineered to carry heavy-load XLPE/SWA cabling
• Installed to maintain optimal bend radii and mechanical protection
• Positioned to avoid interference with plant operations and future maintenance access

This provided the structural backbone for the electrical supply to the Heat Recovery Unit.

To meet the HRU’s operational load requirements, our engineers installed and terminated:

4 core 240mm² XLPE/SWA — supplying the 160 kW exhaust fan, designed for continuous heavy-duty operation.

4 core 185mm² XLPE/SWA — feeding the 132 kW intake fan, ensuring voltage stability and performance over distance.

4 core 50mm² XLPE/SWA — powering the 60 kW MCC control panel, providing coordinated control of the entire heat recovery system.

All cabling was correctly glanded, terminated, tested and commissioned in accordance with current electrical regulations and industry standards.

Upon completion of installation works:

• All cable terminations were inspected and tested
• Load, continuity and insulation resistance checks were carried out
• Compliance was verified against relevant electrical regulations
• Full installation certification was issued

This ensured the HRU electrical infrastructure met both regulatory requirements and the manufacturer’s operational performance criteria.

The completed installation now supports:

• Continuous operation of heavy-duty industrial fans
• Stable and coordinated MCC-controlled system performance
• Long-term electrical reliability
• Improved site energy efficiency and reduced operational costs

The project was delivered safely and efficiently, with minimal disruption to the client’s live production environment.

This project forms part of our wider Electrical Building Services offering for industrial and manufacturing facilities.

From large-format sub-main distribution and containment systems to MCC integration and compliance certification, we design and install infrastructure capable of supporting complex mechanical plant and energy efficiency upgrades.

This installation demonstrates our expertise in:

• High-capacity industrial power distribution
• Safe installation of large-format XLPE/SWA sub mains
• Integration with MCC panels and heavy mechanical plant
• Delivering compliant, certifiable energy infrastructure
• Working within operational manufacturing environments

We provide electrical solutions designed to match the scale, complexity and reliability requirements of modern industrial facilities.