Attracting a lot of attention at the WESCO booth at last month's Greenbuild 2011 conference in Chicago was the Honeywell Wind Turbine marketed by Windtronics. It's a gearless wind turbine that measures just 6 feet in diameter and produces on average 1,500 kWh per year, plus or minus depending on site location, height and wind speed. The Honeywell Wind Turbine's BTPS perimeter power system and unique design of multi-stage blades allows the system to react quickly to changes in wind speed. The Blade Tip Power System (BTPS) utilizes a system of magnets and stators surrounding its outer ring capturing power at the blade tips where speed is greatest, practically eliminating mechanical resistance and drag. Rather than forcing the available wind to turn a generator, the perimeter power system becomes the generator by swiftly passing the blade tip magnets through the copper coil banks mounted onto the enclosed perimeter frame.