Wind turbines are getting extra scrutiny from neighbors and regulators, particularly those concerned about bird life. Chaska-based SheerWind thinks it has a more eagle-friendly way to catch the wind. Its Invelox system stands lower than a windmill, and places blades and turbines at ground level, capturing and accelerating wind to create (the company asserts) more power production. SheerWind’s Invelox technology won the Cleantech Open’s North Central Region Sustainability Award last year. Now it’s time for some more pilot projects