Framingham, Massachusetts, is home to the nation’s first utility-owned geothermal network. The project began with HEET’s “gas-to-geo” concept and became an Eversource demonstration project approved through the Massachusetts Department of Public Utilities.

The network connects about 140 customers and demonstrates how gas utilities can use existing pipe, street, workforce, and customer service expertise to transition to thermal energy infrastructure. The project also highlights the importance of community buy-in, building retrofits, workforce development, and phased expansion.