The contract is for 55 V100 1.8MW low wind-speed turbines to go to the Anacacho project, in Kinney Country, south-east Texas.
Delivery is scheduled for mid-2012 with commissioning expected in late 2012.
Last year, Vestas announced it had signed a 202MW deal with E.on for 112 V100 1.8MW turbines.
It was unable to state the turbine’s destination although it said that delivery was set for mid-2012.