When a neighborhood-scale geothermal network came online in Framingham, Massachusetts, two years ago, it was hailed as groundbreaking.
The first-of-its-kind system, owned by the state’s largest utility, Eversource, delivers warm and cool air to some 140 customers through pipes much like the ones that used to carry natural gas to those homes and businesses. But instead of burning fossil fuels to generate warmth, the network draws on emissions-free thermal energy stored in the ground beneath the community. To deliver cool air, the system returns the heat back into the earth.
Supporters say this approach to climate-friendly heating and cooling — geothermal loops, serving entire neighborhoods, owned and operated by utilities — can deliver clean heat, save consumers money, and provide new business opportunities for natural gas companies in states trying to transition away from fossil fuels.
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