A national “cool” roof campaign could save some 5.7 quad of net primary energy valued at $33 billion over the 20-year lifespan of an average roof, according to researchers at the Lawrence Berkeley National Laboratory’s Heat Island Group.

The Case for Cool Roofs recommends a no-cost cool (more…)

Andasol, a gigantic farm with 600,000 parabolic mirrors that follow the sun on its daily path across the Earth, has gone online. The system occupies an area that equals the size of 210 football fields.

According to 9Billion, the project is on the Guadix plateau and is a cooperation between four German (more…)