How it works

Turning hidden heat into usable energy

Wastewater doesn’t just disappear – it carries heat.

Even after use, wastewater typically remains between 16°C and 20°C. That makes it a stable, continuous source of low-carbon energy flowing beneath our feet.

From sewer to heat supply

We enable organisations to access and unlock this energy through proven heat recovery systems.

Using a combination of heat exchangers and heat pumps, thermal energy is captured from the sewer network and upgraded for use in heating systems – supplying buildings, campuses or district heat networks.

A simple, proven approach

While every project is tailored to the specific site and energy demand, the approach is consistent:

• Access the sewer network at the right location
• Capture thermal energy using heat recovery technology
• Deliver low-carbon heat into buildings or heat networks

Partner with us

We work closely with developers, local authorities and energy partners to ensure every scheme is technically viable, compliant and built for long-term performance.

From early feasibility through to delivery, we can help you turn hidden energy into a practical, low-carbon heat solution.