Dynegy today announced that it has entered into a multi-year partnership with Chicago’s iconic Willis Tower to provide 100% renewable electricity to the Tower.

“Sustainability is a top priority as we transform Willis Tower into a market-leading work environment,” said David Moore, senior vice president and portfolio director, EQ Office. “Our partnership with Dynegy is one of the many ways we’re continuing our commitment to co-creating sustainable experiences in and around Willis Tower, and we’re proud to further EQ’s mission of making smart, green choices that improve the space around us.”

The contract with Dynegy ensures that 100% of Willis Tower’s electricity comes from wind power via renewable energy credits and also ensures that costs to tenants remain consistent. The deal was signed as the 110-story urban destination undergoes the biggest restorative project in its history. As part of the transformation, EQ has made significant energy, sustainability and comfort upgrades throughout the building, leading Willis Tower to achieve the U.S. Green Building Council Leadership in Energy and Environmental Design (LEED) Platinum certification. Willis Tower is the largest building in the U.S. to have earned this prestigious ranking.

“For Dynegy, understanding this customer’s bold commitment to sustainability and its sweeping vision for the future was key to developing business solutions, and ultimately, a partnership,” said Gabe Castro, senior vice president of business markets for Dynegy. “Dynegy is proud to power the historic Willis Tower and serve the millions of people who work and visit there each year, and to provide clean, reliable electricity to the businesses and tenants of this Chicago landmark.”

In addition to powering Willis Tower, Dynegy is also the Official and Exclusive Energy Provider for the Chicago Cubs and Wrigley Field. The company understands the unique operational needs of buildings that draw visitors on this scale and is committed to creating tailored solutions that work for each of its customers.