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Evance Wind Turbines 

The former Iskra Wind Turbines company has been renamed and is now know as Evance. They are a small wind turbine maker located in the U.K. that was originally founded in 1998. This engineer-owned company has previous experience with larger power generation as they were involved with the development of the Carter Mk II 300 kw turbine. Development of a marketable residential size turbine was kicked off in 1999 when they won a Department of Trade and Industry award.

The original Iskra AT-1 has been superseded by the Evance R9000. The R9000 is an upwind 3 blade design with a 17.7 foot rotor diameter. The blades a solid core, fiberglass reinforced composite.

The R9000 is distinctly different in appearance from many turbine on the market today. This is due to the axial flux permanent magnet alternator instead of the more commonly used radial flux PMA.

The rotor speed control is accomplished with blade pitch governing. Evance has their own patented Reactive Pitch™ control. This is designed to allow a maximum of 230 rpm.

The Evance R9000 is available for a grid tie application or battery charging. The R9000 has been awarded certification under the Microgeneration Certification Scheme (MCS).