Photo: Robert Stolarik for The New York Times

Solar-powered air conditioning just makes so much sense; it is usually hottest when the sun shines brightest. Now piano maker Steinway has installed an 80 ton absorption chiller that is powered by hot water from tracking solar panels. In the winter, the solar collectors provide water for heating.
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This year, Barcelona city council decided to set an example and opt for low energy Christmas lights around town. The most intriguing ones are the 6 metal Christmas trees that are either solar or bike-powered. The Barcelonans however believe they are being tricked…...

Photo courtesy of Pearl Ave Library

Photos from Today's Zaman (left) and BELBİM (right).

Looking a little like a wedge of hard cheese, this modernistic Swedish passive house is perched on a rock and with a view of the sea in the southeastern Swedish hamlet of Trosa.

Passive house combines eco-techniques and "modern" design

Recycled Satellite Dish Becomes Solar Heater