This month, AES Wind installed its first demonstration AES WindJet 5 turbine in Overland Park, Kansas. The twin-rotor turbine is rated at 5 kW and was designed to increase efficiency by up to 54% over existing designs. With a slow rotor speed, the turbine is quieter, more durable, and less likely to create problems with birds.
About a week ago, the Rocky Mountain Institute launched Green Footstep, a free online carbon calculator for reducing emissions in building construction and retrofit projects. The website also features three case studies together with an explanation of the Green Footstep methodology. With the tool, you can:
We've seen building integrated solar by separate companies for use with both asphalt shingles and standing seam roofing. Now SRS Energy and US Tile are preparing to unveil a new Solé Power Tile at Greenbuild. The barrel-style technology was designed for a clay tile curved roofing system. Using thin film solar, the Solé Power Tile integrates seamlessly with blue glaze or earthen tone tiles. SRS Energy and US Tile will launch the system first on the West Coast and roll it out nationally through 2010.