The Guild” at 217 E. College Ave., Appleton, opened in 1978. The building was designed to be highly energy efficient.

If you have a drafty home, are always cold or just want to add some supplemental heat, there's an energy-efficient space ...

Discover how existing buildings could be America’s fastest path to new usable power. The right techniques and tools could ...

Swiss marine giant ABB has spent more than a decade developing a radically different Voith-Schneider take on a marine propeller. The Dynafin system promises up to 85% efficiency, while giving a vessel ...

STANDISH, ME - SEPTEMBER 25: Aaron Sinclair, of Dave's World, installs a heat pump at the home of Roland and Dale Bois on September 25, 2018. Sinclair, who has worked installing heat pumps for two ...

Mayor Cavalier Johnson says the city of Milwaukee will develop 25 homes that run on solar energy on vacant lots in three disadvantaged neighborhoods. That’s thanks to a newly announced $3.4 million ...

The Inflation Reduction Act extended and enhanced two consumer tax breaks tied to home energy efficiency. The residential clean energy credit and the energy efficient home improvement credit are more ...

Researchers from the TU Berlin, the Helmholtz Center Berlin, the Institute of Microsystems Technology (IMTEK) at the University of Freiburg and Siemens Energy have developed a highly efficient ...

The proposed 3831 Chicago project, which 548 Enterprise says will be the largest Passive House building in the city to date. (Rendering courtesy 548 Enterprise) This is your first of three free ...

A Lancaster city homeowner’s effort to make his house a highly energy-efficient property has turned into a dispute over whether the city should prioritize historical character over environmental ...