Dominion Energy GreenTherm District Energy System: Low-Carbon Heating and Cooling for US Campuses and Hospitals

Dominion Energy's GreenTherm District Energy System provides centralized low-carbon heating and cooling for large buildings like hospitals and universities. It replaces separate boilers and chillers with a single thermal plant and underground distribution network, cutting emissions and simplifying maintenance for customers. The system uses natural gas boilers, electric heat pumps, and thermal storage to optimize efficiency and reduce carbon intensity over time. GreenTherm is sold as a service with long-term contracts, so customers avoid upfront capital costs for boilers and chillers. The system is currently available in select Virginia cities, with expansion focused on medical centers and campuses. For investors, it represents a regulated infrastructure play tied to predictable cash flows and growing demand for low-carbon thermal energy in dense urban areas.