Nearly 500 buildings in the state capital get their heat from a clean, renewable source located deep in the ground.

Energy-efficiency and clean energy projects like insulation, solar, and heat pumps can bring you thousands in federal and ...

Reversing Biden’s heat pump mandate could rattle manufacturers, but with two new pro-energy orders in play, one insider bets ...

Philadelphia Gas Works said Monday that it is exploring the use of geothermal energy to heat and cool a Philadelphia School District building and city recreation center as a foray into using renewable ...

A historic donation from the Harris family could quadruple Boise's geothermal energy system, which has been sustainably heating nearly 100 buildings for decades.

After years of fits and starts, a modern concrete building is emerging from scaffolding and all the windows appear to be in.

A 10-story hotel, one of a handful of buildings in Brooklyn and beyond to use geothermal heating and cooling, is progressing ...

I get a lot of text messages, that new kind of way to exchange information. I like it when it works and hate it when it doesn ...

This story was produced in partnership with the Pulitzer Center. It is part four in a four-part series. Read part one here, part two here and part three here. Correction: This article has been ...