Scientists make surprising discovery after digging deep into frigid Alaskan soil — here's what they found

Scientists make surprising discovery after digging deep into frigid Alaskan soil — here's what they found

Researchers at the National Renewable Energy Laboratory set out to test whether summer heat could be stored underground and reused to warm buildings in winter. The team, which published its study in Energy and Buildings, focused on one of the coldest places in the United States: Fairbanks, Alaska. Borehole thermal energy storage collects waste heat, like from a nearby coal plant, during summer and stores it underground in a field of deep, vertic…