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Innovation based on experience

We support forward-thinking global clients using our comprehensive understanding of wastewater heat recovery (WHR).

From owning and operating the UK’s first commercial WHR system to completing detailed feasibility studies for global WHR projects, our knowledge and experience is shaping the low-carbon future of heating and cooling. 

Explore the Case Studies below to learn more.

Borders College 

Galashiels, Scotland

Since 2019, we have owned and operated the WHR system at Borders College in Galashiels – the first commercial system of its kind in the United Kingdom. Commissioned in 2015, the system comprises a 500m heat network that supplies up to 800kW of heat to the site’s five boiler rooms. 

RE Borders College

We completed a feasibility study assessing viability of WHR as a low-carbon heating solution for the Worthing Civic Quarter Heat Network (WCQHN). Once complete, the WCQHN scheme aims to deliver heat into a newly-built district heat network responsible for heating nearly 30 public sector buildings in central Worthing.

Borders College

Centrio, the largest core-competency district energy operator in North America, engaged us as the technical expert for a WHR scheme at Denver’s National Western Center – the largest sewer heat recovery project in North America. We were tasked with peer reviewing designs and providing advice based on our experience with WHR operations in the UK.

RE Maiden Lane

As part of a low carbon heat generation study, Max Fordham and Camden Borough Council commissioned us to complete a feasibility study assessing the viability of a WHR system that, once complete, will provide heat to a heating network serving the residents and community centre of the Maiden Lane and York Way Estate, London.

Borders College

We acted as the technical expert advising McKinstry Construction on the design of Seattle's first WHR system. The system will abstract wastewater from a nearby 84 inch diameter municipal sewer and deliver heat to four residential and commercial buildings.

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Worthing District Heat Network 

Worthing, England

National Western Center  

Denver, Colorado

Maiden Lane Estate Community Heat Network

London, England

Seattle District Heat Network

Seattle, Washington

Aqualibrium Leisure Center  

Campbeltown, Scotland

Recirc team members played key roles in the design installation, and commissioning of the UK's third wastewater heat recovery system at the Aqualibrium Leisure Centre. The system will provide 95 percent of the Center's heating, supporting Argyle & Bute Council's carbon reduction aims. 

The Stirling Low-Carbon Heat Project

Stirling, Scotland

Recirc team members designed the wastewater heat recovery solution included in the Stirling Low-Carbon Heat Project. The Scottish Water owned scheme was developed to deliver sustainable, low-carbon heat through a district heat network. The WHR technology was integrated alongside a combined heat and power (CHP) engine, a first for the UK. 

Park Ecovillage Trust: North Whins Affordable Housing

Project, Findhorn, Scotland

We were commissioned by the Park Ecovillage Trust (PET) to develop a wastewater-to-head solution for their newly constructed North Whins Affordable Housing Project. The innovative system was designed to provide space heating and domestic hot water for eight, new-build apartments and integrated numerous site-specific features. 

South West Water

Wastewater Heat Recovery - White Paper

South West Water commissioned Recirc Energy to produce a white paper detailing the role wastewater heat recovery (WHR) could play in meeting company and government net zero targets. The study estimated that if SWW were to implement WHR at their 15 largest wastewater treatment sites, there was a median wholesale heat revenue potential of circa £33m per year.


City of Surrey DHN

British Columbia, Canada

Recirc provided expert peer review design services for a planned wastewater heat recovery project in the City of Surrey, British Columbia, Canada. Supporting leading Canadian engineering consultancy Associated Engineering (B.C.) Ltd.

Get in touch to discover how wastewater heat recovery can transform your operations.

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