Inhabitat reports that micro-wind turbines are starting to be seen on corporate buildings - Adobe Headquarters Installs 20 Vertical Axis Wind Turbines.
Eventually, we’ll be squeezing renewable energy out of every possible source we can – especially from rooftops in urban areas. Adobe Systems is at the forefront of this trend, having just installed building integrated wind turbines atop its headquarters in downtown San Jose, CA. Their 20 new Windspire vertical axis turbines are affixed on the 6th floor of the parking garage of their office complex, which also happens to be LEED certified. The electricity generated from the turbines will eventually power an electric vehicle charging station in the garage below as well as the famous San Jose Semaphore!
Mariah Power is the maker of the Windspire, which weighs about 650 lbs, stands 30 feet tall and has a rating of 1.2 kW. Adobe installed 20 of these turbines around its employee basketball court at the top of its parking garage. Surrounded on either side by two Adobe office towers, a wind tunnel effect is created above the garage and gets average wind speeds of 14 mph. Adobe and Mariah Power expect that each of the turbines will generate about 2,500 kWh annually, totaling up to 50,000 kWh for the whole system.