Google used DeepMind AI to cut its power bill

Google's grand experiment in using artificial intelligence to save power is paying off. The search firm's Demis Hassabis tells Bloomberg that the DeepMind AI has cut electricity use at Google data centers by "several percentage points" thanks to its extra-efficient use of equipment, such as cooling systems and windows. It's not certain just how much energy the smart code is saving, but Google used slightly over 4.4 gigawatt-hours in 2014 alone -- even a small dent in that consumption could easily save hundreds of millions of dollars. That pricey DeepMind acquisition is likely paying for itself.