"Alphabet's DeepMind division reports they improved the overall power usage efficiency (PUE) of Google's data centers by 15 percent after placing an AI program similar to a program taught to play Atari games in charge of managing a data center's control systems. DeepMind and data center engineers report they've improved the cooling systems PUE consistently by up to 40 percent"Google Cuts Its Giant Electricity Bill With DeepMind-Powered AI - Bloomberg
"Google reportedly used 4,402,836 MWh of electricity in 2014, or the equivalent of 366,903 U.S family homes according to Google Green
serving a Google user for a month is like driving a car one mile.
cost savings could... pay for the ... more than $600 million DeepMind acquisition. It will also reportedly reduce their data center's carbon-footprint-per-user."
Good visualization of statistics: