A once-overlooked technology that taps into the Earth’s heat to generate electricity could supply up to 20% of the electricity in the United States by 2050, according to a new Princeton analysis.

In areas with geologically recent volcanic activity and ample underground water flow, like the Hawaiian Islands, geothermal energy technologies present options to augment the electric grid. Subscribe ...

For several decades, our industry has applied closed-loop, water-source heat pump systems in commercial and institutional buildings. These systems can provide excellent energy performance when the ...