The first agreement, with Leeward Renewable Energy, will supply Digital Realty’s Chicago data centres with an anticipated 276,000 megawatt-hours of renewable wind power annually. The second agreement, with SunEnergy, will supply Digital Realty’s Ashburn data centres with 48,000 megawatt-hours of renewable solar power annually. Both projects are expected to come online in 2018. Digital Realty was assisted in the contracting process by advisory firm Schneider Electric-Renewable Choice Energy.
The agreements will increase the quantity of renewable energy sourced for the company’s owned and managed data centres in the U.S. by 80 percent. Following the expansion, Digital Realty will have contracted for approximately 721,000 megawatt-hours of renewable generation annually through long-term contracts, avoiding approximately 515,000 metric tons of carbon dioxide per year. The environmental benefits from Digital Realty’s renewable energy sourcing efforts will have an impact comparable to meeting the energy needs of 55,000 U.S. homes per year.