Vestas has won a contract to supply 570 megawatts worth of wind turbines to Terra-Gen Power L.L.C.’s Alta Wind Energy Center in California – their largest order for a single site to date.

The Danish wind turbine manufacturer will supply 190 units of its V90-3.0 MW wind turbine to the wind energy center near Tehachapi. The Alta project is slated to be one of the largest wind energy developments in the United States, with plans to bring 3,000 MW worth of wind energy online through a roster of wind energy facilities.

Aside from supplying the wind turbines, Vestas will also commission the units and administer service and maintenance for five years.

The first 50 wind turbines will be commissioned by the end of the year, while the remaining 140 turbines will be brought online in the first half of 2011.