saving energy

Retrofitting Older Windows Shows Better Returns on Investment & Similar Energy Savings

Residential buildings account for approximately 20 percent of the total U.S. energy use and carbon dioxide emissions, and one of the major inefficiencies in the average house is the commonplace window. Poor seals, inferior curtains, and a host of other factors can turn an older window into a critical problem for the energy and budget concious home-owner. However, a new study released Tuesday has shown that retrofitting older windows yields similar efficiency results as replacing them, but is also much cheaper than the alternative. […]

Paint it White and Stay Cooler

Keeping a building cool is the focus of a new study launched by the University of Melbourne and the City of Melbourne which shows that painting the roof of a building white can go a long way to reducing the interior and exterior temperatures. The research results—which will be available … [continued]

“Be an Energy Star” Video Challenge (+10 More Cleantech Stories of the Week)

Energy Star has a “Be an Energy Star” video challenge going on right now (on YouTube & Facebook), geared at highlighting the many great things people around the country are doing to save energy. Interestingly, I didn’t run across news of this via any of my normal cleantech avenues, but found it on sister site sustainablog. Jeff over on sustainablog chose the video below as his favorite so far (though, there are still a number of videos to come, as the contest runs until September 16). I have to admit it’s pretty cool and cute.

U.S. Department of Energy Crowns New Energy Saving LED Kings

The U.S. Department of Energy has just named the winners of its eighth annual Lighting for Tomorrow competition, and the focus was squarely on new high efficiency LED designs that could help cut lighting energy use by 25 percent. LEDs (light emitting diodes) also have a big advantage over conventional bulbs when it comes to longevity, which could add even more on top of the $120 billion in energy savings that DOE expects from LEDs over the next 20 years – if enough building owners can be convinced to make the shift.