The company will buy energy from EDP Renewables North America under a power purchase agreement.
EDP will supply around 30MW of clean electricity generated at the planned 250MW Hidalgo wind farm in Edinburg.
GM will use renewable energy to manufacture about 125,000 trucks per year. The plant currently produces over 1,200 vehicles per day.
GM global manufacturing executive vice president Jim DeLuca said: "Our investment is helping accelerate the proliferation of clean energy in Texas and the use of wind as a reliable, renewable source of energy.
"Our sustainable manufacturing mindset benefits the communities in which we operate across the globe."
The Arlington assembly plant is expected to cut around $2.8m in annual energy costs and reduce one million metric tons of CO2 emissions during the period of the 14-year deal.
GM said it will also begin using wind energy to power three facilities in Mexico, starting in the first quarter of 2016.
The renewable energy investments will help the company to extend its commitment to use 125MW of renewable energy by 2020.
Image: General Motors’ Arlington Assembly plant will soon be able to build up to 125,000 trucks a year using wind power. Photo: courtesy of General Motors.
