It's a shame too because one of the inhibiting factors of AI as complex as DeepMind is the fact it isn't cost effective due to its power consumption for quite a few tasks.
This part really incensed me. That's like describing SpaceX's rocket "as being based on similar technology as Wernher von Braun's V2 rockets in World War 2". I exaggerate for effect, but you get the point.
Edit: formatting.
What you have described is easily instantiated with any numerical optimization technique of the last 40 years. The devil for any of these problems is in the details.
You are talking about the power required to execute the AI, where the article is discussing the application of the AI to make a system more efficient.