Facebook is reporting increased energy use and carbon emissions at its data centers - including the one that opened in Prineville two years ago.
The central Oregon facility consumed more than 150 million kilowatt-hours of energy last year. That's the annual equivalent of what's used by about 13,000 homes.
Facebook says the Prineville center's 2012 energy use led to 104,000 metric tons of carbon emissions.
That means it produces more carbon for the energy it produces than its other U.S. data centers. And it's far more than Facebook's carbon-zero facility in Sweden, which runs on hydroelectricity.
Facebook says its carbon footprint is relatively light, when measured by the individual user. The company's report argues that one person using Facebook for a year has about the same carbon footprint as a few glasses of wine, or a cup of coffee.
This story originally appeared on Oregon Public Broadcasting.