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China’s Huge Self-Sustaining Solar LED Wall

It’s called the GreenPix Zero Energy Media Wall, and with 2,292 individual color LEDs, comparable to a 24,000 sq. ft. monitor screen, it’s said to be the largest color LED display in the world. The wall is solar-powered too — photovoltaics are integrated into the wall’s glass curtain, and it harvests power during the day, […]

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Windspire: Propeller-Free Household Turbine Gets Approval

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We just featured the largest wind turbine in the world, now here’s something at the opposite end of the spectrum: a household wind turbine. In the last few years, we’ve seen a lot of mini-wind turbines that haven’t turned out to be very useful. But the Windspire turbine from Mariah Power sounds interesting. The Windspire […]

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Allison Rogers: Commuting Overnight By Train: Efficient

Train travel — it’s an efficient form of travel that really should revived in this country. Air travel, as we know it today, doesn’t make much sense, if closely examined (although I’d like to see zero-emission planes and airship-based travel). But I digress — Allison Rogers, an optimal living trailblazer, has been commuting up and […]

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New World Record Set For Solar Efficiency: 31.25%

On a perfect New Mexico winter day — with the sky almost 10 percent brighter than usual — Sandia National Laboratories and Stirling Energy Systems (SES) set a new solar-to-grid system conversion efficiency record by achieving a 31.25 percent net efficiency rate. The old 1984 record of 29.4 percent was toppled Jan. 31 on SES’s […]

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Google Maps – Efficient Commuting With Customized Bicycling Directions

google-bike-maps

Biking around town is a great way to cut pollution while getting a little exercise, especially now that springtime weather is upon us. So tune up your bike, buckle your helmet, and find a bike-friendly route with the new “Bicycling” option from Google Maps.

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