EY US has entered into two virtual power purchase agreements with unnamed wind farms in Texas providing the finance to initiate construction of the projects.
Both wind farms are expected to be operational by the middle of next year.
EY Americas director of environmental sustainability Leisha John said: “These agreements actively address the environmental impact of our business and will become the cornerstone of our low carbon strategy, yielding significant economic and risk mitigation benefits.
“We are proud to join other leading organisations who believe we must harness our influence and scale to drive measurable progress for our planet and future generations.
“We hope it will inspire others to think of innovative ways they, too, can contribute to a more sustainable environment.”
EY Americas deputy managing partner and senior vice chair Michael Inserra said: “This belief underpins our duty to drive inclusive growth through responsible business practices, helping to create a world where everyone, everywhere is able to contribute to and share in prosperity.
“Environmental sustainability is an essential component of inclusive growth and we will continue to look for ways to measure and reduce the environmental impact of our business operations.”