Ground source heat pumps are not appropriate for all end uses. Converting to a ground-source heat pump would require substantial building retrofits and capital investment for many customers. Further, heat pumps are only sometimes technically viable for many customers, like biotechnology companies, laboratories, or hospitals, with unique energy requirements and high demand. These customers require reliability for critical processes, and heat pumps introduce risk to their operations. If a building uses heat pumps, coupling with district energy ensures reliability and affordability, especially during peaks and carbon neutrality. Finally, in-building heat pumps will struggle to meet a building’s temperature requirements on cold days. Below a specific ambient temperature, the heat pump cannot warm up the air in a building to a tenant’s desired comfort level. Comparatively, district energy is a better, more efficient means to heat a building to the appropriate temperature during the winter.
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