While temperatures above ground fluctuate throughout the year, the ground stays a stable temperature, meaning that it is humming with geothermal energy that engineers can exploit. “Every building sits on a thermal asset,” said Cameron Best, director of business development at Brightcore Energy in New York, which deploys geothermal systems. “I really don’t think there’s any more efficient or better way to heat and cool our homes.”
And now the big utilities are beginning to take a good hard look at that system. A couple of months ago Eversource Energy commissioned the US’s first networked geothermal neighbourhood operated by a utility, in Framingham, Massachusetts.
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