Denmark’s Vestas Wind Systems has received an order from US utility MidAmerican Energy for the supply of 214 MW of production tax credit (PTC)-qualifying wind turbines.

The firm and unconditional contract is part of MidAmerican’s 2,000MW Wind XI project in Iowa, US.

In June 2016, Vestas signed a conditional agreement to supply wind turbines for MidAmerican Energy's $3.6bn Wind XI project.

As per the deal, Vestas agreed to supply and commissioning of 1,000 units of its V110-2.0 MW wind turbines to the site in the period 2016-2019.

The conditional agreement also includes provisions for Vestas to deliver 100% of MidAmerican's 2016 PTC Safe Harbor components.

It also includes a 5-year active output management (AOM) 4000 service agreement with options to extend it for up to 10 years.

MidAmerican Energy, which is owned by Warren Buffett’s Berkshire Hathaway, has recently secured approval from the Iowa Utilities Board for Wind XI project.

Vestas plans to supply the remaining turbines for the project through partial deliveries under the master agreement.

Vestas US and Canada sales and service division president Chris Brown said: “As the only state to generate more than 30% of its energy from wind, Iowa leads the country in delivering wind energy’s economic and environmental benefits to its communities, and it’s an honor to be a part of the largest wind project in the state’s history.”

The Wind XI project will comprise multiple sites across Iowa with the first sites planned to be commissioned in 2017 and the last site in 2019.

Image: The Wind XI project in the US will feature Vestas’ turbines. Photo: courtesy of Berkshire Hathaway Energy.