The 98MW project is currently under construction and will use Vestas' V100-2.0MW turbines when it comes online in 2015.
In August, Ikea purchased the 7.65MW Carrickeeny wind project in north-west Ireland from Mainstream Renewables.
The company said it aims to spend EUR 1.74 billion on solar and wind energy projects by 2015.
The purchase is Ikea's largest renewable energy investment to date and will become the 16th wind site it is involved in. So far, most of Ikea's involvement in wind energy has been in Europe.
Ikea's chief sustainability officer, Steve Howard, said: "The US has amazing wind and sun resources that will never run out. We are delighted to make this investment - it is great for jobs, great for energy security, and great for our business."
Vesta's announced the order at the end of March but did not disclose the location or the customer.
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