"The savings translate into a 15 percent improvement in power usage efficiency, or PUE, Google said in a statement.
"It controls about 120 variables in the data centers. The fans and the cooling systems and so on, and windows and other things," Hassabis said. "They were pretty astounded."
This is just the beginning of the project, Hassabis said. Now that DeepMind knows the approach works, it also knows where its AI system lacks information, so it may ask Google to put additional sensors into its data centers to let its software eke out even more efficiency."