Vestasâ¿¿ fourth Colorado manufacturing plant, a blades plant in Brighton, will start work on its first order by the end of this year, the wind-turbine maker said Thursday. The order is for blades for 21 wind turbines for a Vermont wind farm. Vestas has hired 150 people to work at the Brighton plant. Vestas already has a blades factory in Windsor, a towers plant in Pueblo and a nacelles plant â¿¿ where the housing unit on top of the tower is assembled â¿¿ in Brighton. The company employs more than 1,500 people in Colorado. Denmark-based Vestas Wind Systems said Green Mountain Power, based in Colchester, Vt., will buy 21 wind turbines, model V112-3.0 MW, for the Kingdom Community Wind project. The projectâ¿¿s cost has been reported as $150 million. Itâ¿¿s the first North American order for Vestasâ¿¿ V112 wind turbine since the company launched the model in 2009. Terms of the deal werenâ¿¿t disclosed. The Denver Business Journal talked to Vestas officials about their hopes for the V112 in September 2010. The Kingdom Community Wind project will be capable of providing enough power to support 24,000 homes. Turbine delivery is scheduled for mid-2012 and commissioning is expected by the end of 2012, Vestas said. The contract also includes a 15-year service and maintenance agreement. The V112-3.0 MW model includes a new blade profile, nacelle design and cooling system to maximize electricity generation. The blades on the V112 are nearly 180 feet long. Vestasâ¿¿ Windsor blades factory can make blades that are either 144 feet or 161 feet long, depending on the model, according to the company. â¿¿The V112-3.0 MW turbine features our latest technologies and is designed for wind speeds such as those found in this particular area,â¿ Martha Wyrsch, president of Portland, Ore.-based Vestas-American Wind Technology Inc., Vestasâ¿¿ North American arm, said in a statement.