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Energy-efficient

Environment

"Light recycling" tech could save incandescent bulbs from obsolescence

Incandescent light bulbs may put out a warmer-looking, more familiar type of light than LEDs or compact fluorescents, but they're far less efficient – the majority of the energy they use is wasted, mainly in the form of heat. Technology may save them yet, however. Scientists at MIT and Purdue University have developed an ultra-efficient new incandescent bulb that reuses the heat it gives off, converting that heat into more light.Read More

Architecture

Ultra-efficient SURE HOUSE wins the 2015 Solar Decathlon

The US Department of Energy’s Solar Decathlon has been run and won for 2015. It’s a nationwide contest between collegiate teams to see who can build the most attractive, cost-effective and efficient solar home. Fourteen teams duked it out for this year’s competition, and the winning team from the Stevens Institute of Technology drew inspiration from Hurricane Sandy to create a sustainable, solar coastal home that opens up for entertaining in summertime but locks down to resist severe weather damage in the winter – and uses some 90 percent less energy than a typical home.Read More

Environment

New heat-recovery system makes Stanford one of world’s most energy-efficient uni's

At Stanford University in California, it’s normally the Nobel-winning researchers who make the news. But with the commissioning of a novel renewable energy system, the campus’s humble heating and cooling system has grabbed some headlines. Using a first-of-its-kind heat recovery system, and drawing a substantial percentage of its electricity from solar, the university is greening up its operations in a move that will see greenhouse gas emissions cut by 68 percent and fossil fuel use cut by 65 percent. Read More

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