'Fiscal cliff' legislation retroactively reinstates the 25C tax credits for highly efficient HVAC and water heating equipment that expired at the end of 2011.

The Seasons of Tuxedo retail complex to be built in Winnipeg, Manitoba, Canada, will be served by one of the largest geothermal heating and cooling systems in North America.

Sandy victims soon began making inquiries about geothermal systems just days after the storm.

Proponents say the geothermal-heated lanes would reduce accidents, road salt and car expenses.

California is the third state to pass such legislation - after Maryland and New Hampshire.

The Rhône Alpes team from France won Europe’s 2012 Solar Decathlon with its Canopea house. The Andalusìa team from Spain won second place with its Patio 2.12 house and

Plans are underway to turn NYC's Roosevelt island into an enormous super-green net-zero energy campus.

The American Solar Energy Society’s National Solar Tour is Oct. 6, in conjunction with National Energy Awareness Month.

Until new funds are found, the project will stop in its second phase sometime this fall.

The CEA Solar Hot Water Grant  will allow homeowners and business owners to install a new 20-year hot water heating system for up to 75% off.