Denver's Innovative Plan to Heat and Cool Buildings Using Sewage and Geothermal Energy
Denver has a plan to heat and cool buildings without fossil fuels. It involves sewage
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Denver is launching a thermal energy network to heat and cool downtown buildings without fossil fuels, utilizing a mix of geothermal energy and sewage heat. This initiative aims to reduce greenhouse gas emissions to zero by 2040 and could serve as a model for other cities. The project is expected to cost between $280 million and $320 million over the next decade.
- 01The project will repurpose parts of Denver's outdated steam system to create an 'ambient loop' for heating and cooling.
- 02The thermal energy network will use underground pipes filled with water and water-source heat pumps to share energy among buildings.
- 03Denver plans to drill geothermal boreholes over 1,000 feet deep to tap into Earth's heat, providing a sustainable energy source.
- 04The city will also implement a heat exchanger system to recover thermal energy from wastewater, which could significantly reduce energy costs.
- 05By 2030, Denver aims to connect nine buildings to this new system, with a pilot program starting in two years.
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Denver is taking a significant step towards sustainable energy by launching a thermal energy network designed to heat and cool buildings without relying on fossil fuels. This innovative plan centers around the historic Cherokee Boiler House and aims to repurpose the city's outdated steam system into an 'ambient loop' that connects multiple buildings through underground pipes filled with water. By utilizing water-source heat pumps, the system will efficiently transfer heat, allowing buildings to share excess energy.
In addition to this, the city plans to drill geothermal boreholes to access heat from over 1,000 feet underground, providing a renewable energy source. The project will also harness thermal energy from wastewater, which is currently treated and released into the South Platte River. By siphoning off this heat, Denver can reduce energy costs and improve environmental outcomes. The total cost of the project is estimated between $280 million and $320 million, with plans to connect nine buildings by 2030. If successful, this model could inspire similar initiatives in urban areas across the United States.
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This initiative could significantly reduce heating and cooling costs for city-owned buildings while promoting environmental sustainability.
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