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

Well, you could run less hot water. You can also try setting ... renewable energy technologies, including geothermal heat pumps and solar water heaters. Homeowners can receive a tax credit of ...

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

These underground reservoirs of steam and hot water can be tapped to generate electricity or to heat and cool buildings directly. 4 min read Geothermal energy has been used for thousands of years ...