Vestas is to supply turbines totalling 174MW to MidAmerican Energy for the Berkshire Hathaway subsidiary’s 2GW Wind XI project in the US.
The Danish company will supply and commission V110 2MW machines manufactured at its Colorado factories.
Delivery will start in the second quarter of 2018.
The order also includes a five-year active output management 5000 service agreement.
The Wind XI project consists of multiple sites in Iowa that will be placed into service between 2017 and 2019.
Vestas president of sales and services in the US and Canada Chris Brown said: “The historic Wind XI project will harness low-cost wind energy for MidAmerican Energy's customers, all while enhancing the reliability and resiliency of the grid.”