WAHPETON, N.D. - Players scrimmaging on the football field at the Circle of Nations School probably have no idea they're trampling over parts of the campus cooling-and-heating system. But there's no ...

BREAKING GROUND: As network geothermal systems break ground in record numbers, the HVAC contractors responsible for installing and maintaining these systems are met with ample business opportunities. ...

As society embraces the sustainability and electrification movements, renewable energies are capturing more and more of a market traditionally dominated by fossil fuel appliances. And, with financial ...

Macalester is piloting aquifer geothermal in a new St. Paul dorm — a small‑footprint approach that could scale to campus ...