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    Sewage could heat and cool buildings turning wastewater into a clean energy source

    Sujita Sinha December 22, 2025 4 min read
    Interesting Engineering
    Sewage could heat and cool buildings turning wastewater into a clean energy source
    AI Article Summary

    A redevelopment project in Denver has turned sewage pipes into an energy source for heating and cooling the National Western Center. The system captures heat from wastewater and uses it to regulate temperatures, greatly reducing reliance on conventional energy sources. The project's success highlights wastewater's potential as a valuable, consistent renewable resource. This technology, already used in various U.S. states and Canada, offers a practical solution for widespread adoption in urban areas.

    What This Means for Canadian Contractors

    This project shows how wastewater can be tapped as a sustainable energy source, making it a compelling option for urban areas with existing sewer infrastructure. For Canadian builders, this means re-evaluating energy strategies to consider sewage heat recovery systems, potentially reducing costs and emissions. Implementing such systems may influence permits and funding, as municipalities might increasingly support infrastructure that cuts down overall energy consumption.

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