A backyard geothermal loop sunk feet from the next one, and shared boreholes slowly chill the ground so output fades for decades, engineers find

A drill rig sinks a narrow hole a few hundred feet into a suburban backyard, and a coil of black plastic pipe disappears into…

Drill rig installing a geothermal loop pipe in a backyard
Energy · Hugo Rojas · October 21, 2026
Newsletter

The morning brief

One email each weekday. Energy, technology, and finance, in the time it takes to finish a coffee.