Wastewater Energy Transfer and Thermal Energy Networks

Canadian Water Network (2026 – Ongoing)

Challenge

Municipalities face a critical challenge in meeting carbon reduction goals, as heating and cooling buildings can account for more than half of local emissions. By expanding low- and zero-carbon District Energy Systems, including innovative Wastewater Energy Transfer technology that recovers heat from sewage, communities have a powerful opportunity to cut building-sector emissions and transform a major source of greenhouse gases into a sustainable energy solution.

Canadian Water Network (CWN) started the Wastewater Energy Transfer and Thermal Energy Networks (WET TENs) project in January 2026. The purpose is to increase national understanding of the sewer heat energy transfer landscape in Canada, as well as the success factors and barriers organizations face in adoption.

Project

The project’s objectives are to:

1. Enhance national understanding and feasibility of WET by examining the barriers facing municipalities as they explore or implement WET and identifying conditions needed for success.
2. Build and activate a collaborative network to support WET systems implementation by establishing and managing a cross-sector network that promotes collaboration and knowledge sharing.
3. Empower municipal water leaders by developing tailored approaches, tools, and resources that help them overcome implementation barriers and start WET projects with confidence.

Outputs

The project aims to deliver:

1. Case studies and reports showcasing stories across Canada and the rest of the world to increase the knowledge base
2. Community of Practice webinar series to provide access to peer learning, technical insights, applied examples, and shared problem-solving opportunities—helping municipalities build the capacity needed to implement WET in their communities.

Outcomes

1. Enhanced awareness and understanding of WET feasibility, benefits, challenges, and success factors across Canadian municipalities.
2. An established and engaged network of WET stakeholders actively sharing knowledge, experiences, and implementation support.
3. Municipal water leaders equipped with the resources, knowledge, and confidence needed to initiate and advance WET projects.