Eavor’s Geretsried project marks the first time a closed-loop geothermal system has delivered electricity to a commercial power grid, demonstrating a new pathway for advanced geothermal deployment.

National Grid has canceled a major geothermal heating project in Lowell. The decision is a blow for environmentalists, who hope geothermal networks will help Massachusetts meet its ambitious climate ...

A promising alternative to natural gas has been taking root in Massachusetts — underground pipes and wells that tap into geothermal energy to heat and cool buildings across a neighborhood. But late ...