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.
P4P Energy, LLC — short for Power for the Planet — recently completed the installation of its first, cable-suspended free span solar system in the parking lot of the headquarters building for REM Eyewear in Sun Valley, California. Designed and patented by P4P Energy and TenSol Power, the array spans 107 feet on low-cost cables and provides shade for cars parked below. It's expected to generate roughly 40,877 kWh of electricity per year.
Earlier this week, Green Wavelength LLC, a bio-inspired clean energy startup, unveiled their 19-foot, prototype, small wind turbine to crowds at The Perfect Pitch 2009 entrepreneur conference. Called XBee, the turbine – unlike any that you’ve probably ever seen – was designed with inspiration from the movement of bumblebees, hummingbirds, and dragonflies.
Stormwater design and control is a huge aspect of green building, especially with LEED credits provided for reducing impervious cover, increasing on-site filtration, and reducing pollution from stormwater runoff and eliminating contaminants. We've mentioned a company previously makes recycled content pavers, Vast Pavers, but I thought I would also mention another company that's been making news in the industry, Xeripave. Xeripave makes permeable pavers in various colors that have a flow through rate of up to 1.5 gallons per second per square foot. Watch how the paver works: