Amazon plans to buy a 100MW wind farm in Paulding County, Ohio.
The joint venture with EDP Renewables is expected to generate 320,000MWh of electricity a year – enough to power around 29,000 homes.
The energy generated will be delivered into the electrical grid which supplies Amazon’s Cloud data centres.
Last year Amazon Web Services (AWS) set a goal of using 100% renewable energy.
In April this year it announced around 25% of the power it used was from renewables. It aims to increase it to 40% by the end of 2016.
Jerry Hunter, Vice President of Infrastructure at AWS said: “We continue to pursue projects which help to develop more renewable energy sources to the grids which power AWS data centres and bring us closer to achieving our long term goal of powering our global infrastructure with 100% renewable energy.”
Amazon’s renewable projects generate a total of 1.6 million MWh – enough to power 150,000 homes.
Earlier this year it teamed up with a green energy development firm to build an 80MW solar farm in Virginia.