A startup company in Chaska aims to turn wind power upside down.
Instead of putting turbines high atop towers, SheerWind's unconventional idea is to scoop wind from above and channel it to ground-level turbines, a design it hopes will be cheaper.
The company recently began testing its first pilot-scale "Invelox Wind Delivery System," a 60-foot-tall wind collector that slightly resembles a municipal water tower.
At its top is a multidirectional air scoop that feeds wind into fabric ductwork and a turbine to generate electricity. The turbine blades spin inside the ductwork.
The technology has moved beyond the lab and now faces a key test of technological credibility. The company also faces dual needs for capital and customers.
"Anytime you come with something so drastic, it is difficult," said Daryoush Allaei, CEO of SheerWind, which began testing the unit last month.
Allaei, a mechanical engineer with several patents to his credit, said he believes his invention can deliver "significantly more output" compared to conventional turbines -- and at lower wind speeds. He said testing has not progressed to the point of proving that's happening on the unit built next to its offices in Chaska.
Testing system is key