FRAMINGHAM — The city's pilot program for geothermal energy could be headed for expansion after a Boston-based nonprofit announced it had landed a $7.8 million federal grant and is partnering with ...

Over the next two years, homebuilder Lennar is outfitting more than 1,500 new Colorado homes with Dandelion Energy’s geothermal systems in one of the largest residential geothermal rollouts in the US.

When it came time to expand its campus, Saint Vincent College outside of Pittsburgh employed a dry fluid cooler and pump package to work with the existing geothermal system. The addition eliminated ...