The network will move heat in and out of the ground using water from an aquifer hundreds of feet below the surface.

Last week, we talked about the slow-but-steady rollout of electric heat pumps in Minnesota homes. The latest iterations of ...

Like many cities, Denver's largest source of greenhouse gas emissions is its buildings. Heating and cooling skyscrapers ...

This small city in rural northeastern South Dakota has established itself as an energy hub for the entire Great Plains region ...

A new wave of start-ups are trying to harvest emissions-free energy from inside the Earth, but the industry still faces ...