Facebook recently released a detailed report on their energy consumption and carbon footprint: Facebooks Carbon and Energy Impact. Facebook has always been super open with the details behind there infrastructure. For example, they invited me to tour the Prineville datacenter just prior to its opening: · Open Compute Project · Open Compute Mechanical System Design · Open Compute Server Design · Open Compute UPS & Power Supply Reading through the Facebook Carbon and Energy Impact page, we see they consumed 532 million kWh of energy in 2011 of which 509m kWh went to their datacenters.
