John Avenson fell in love with his home more than four decades ago.
The year was 1981. That’s when Avenson, a young engineer at the Bell Telephone Co., caught an ad for an event called a Passive Solar.
An electric motorcycle with a 100-mile range, four-pane glass windows and a remote-controlled water recirculation pump are just a few of the latest energy-efficient technologies that were on display at the University of Colorado Boulder on Friday.
An electric motorcycle with a 100-mile range, four-pane glass windows and a remote-controlled water recirculation pump are just a few of the latest energy-efficient technologies that were on display at the University of Colorado Boulder on Friday.