Lead paragraph
To support the City of Saint Paul's goal of achieving carbon neutral building operations, geothermal heat pump systems are providing more efficient heating and cooling at multiple City-owned facilities.
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Geothermal Energy for Municipal Buildings
Progress
On time
- Not started
- Planning
- In process
- Continuous
Description
Back in 2014, the City installed its first geothermal system at the Arlington Hills Community Center.
To provide cooling at the 41,000-square-foot facility, a geothermal heat pump loop serves three air handling units and three rooftop units with direct expansion (DX) cooling. A geothermal loop provides heat to 21 heat pumps, variable air volume systems (VAVs) are equipped with electric reheat, and an electric boiler provides supplemental heat to the loop.
Geothermal systems are now providing efficient heating and cooling for the North End Community Center, Wakan Tipi Center, and new Hamline Midway Library, as well .
The City of Saint Paul is incorporating geothermal energy at Como Park Zoo & Conservatory by shifting the Primates and Polar Bear buildings from the inefficient centralized steam boiler to ground-sourced heat pump systems.
Drill site for geothermal wells at Como Zoo (fall 2024).