Retroficiency offers a quick solution for building energy audits

April 4, 2012 by  
Filed under Business, Green

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Energy efficiency audits for commercial buildings typically are drawn-out, costly affairs. But an MIT grad has developed software that speeds up the process.

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Retroficiency offers a quick solution for building energy audits

NASA-Approved Electric Airplane Flies 200 Miles in 2 Hours

October 6, 2011 by  
Filed under Green

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So this is cool. Electric airplanes have been gracing our pages for years now, and while they remain infeasible as a replacement for commercial airliners (duh), they continue to inspire folks with their increasingly impressive feats of sustainable derring do. This guy? Flew 200 miles in two hours on electricity alone. … Read the full story on TreeHugger

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NASA-Approved Electric Airplane Flies 200 Miles in 2 Hours

NREL Invents 90% More Efficient Air Conditioning Unit

June 18, 2010 by  
Filed under Eco, Eco Tech

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NREL is always discovering and creating amazing things .  This time, the team of scientists has invented an air conditioning process that is 90 percent more efficient than the top of the line units available today. Air conditioning is responsible for about five percent of the nation’s annual energy use, so in addition to better insulated and better designed buildings, more efficient air conditioning units are a necessary stepping stone on our way to more efficient buildings. The air conditioning process uses “membranes, evaporative cooling and liquid desiccants” to remove heat from the air.  Evaporative cooling is a process that has only worked well in dry climates in the past because the cooled air has added humidity.  NREL has solved that issue in their DEVap technology through the addition of the liquid desiccants, which remove humidity from the cooled air.

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NREL Invents 90% More Efficient Air Conditioning Unit

Recycling Could Solve Pesky Polypropylene Carpet Problem

January 20, 2010 by  
Filed under Eco, Green, Recycle

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Yowzers – according to the U.S. EPA, about four billion, yes billion pounds of carpet go into the waste stream every year – much of it is used, some is new carpet left over from building construction .  A lot of that carpet (and carpet backing) is made of cheap, durable polypropylene fiber, which makes up about 80% of the sales for commercial carpet.

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Recycling Could Solve Pesky Polypropylene Carpet Problem

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