Apple Inc. announced this week that fully three-quarters of the energy it consumes in its data centers and corporate facilities comes from advanced energy sources. The company committed to using renewable energy for its facilities in North Carolina, and eventually Apple would like to be powered entirely by advanced energy. Fox News reports:

“In 2012, we completed construction on the nation’s largest end user–owned, onsite solar photovoltaic array on land surrounding the data center,” the company disclosed on Friday, announcing plans to shoot for 100 percent renewable power sources. The 100-acre, 20-megawatt facility can produce 42 million kWh of renewable energy each year, Apple said. “We are currently building a second 20-MW solar photovoltaic facility on nearby land that should be operational in late 2013.” Apple also operates a 10-MW fuel cell installation at Maiden, which uses biogas to create 83 million kWh of energy -- it’s the largest such facility not operated by a power company in the country, the company claimed.