David Roberts on Grist suggests that energy efficiency = resource intelligence:
I’ll have to think about it more, but at first blush I like it—at least it has a spark of humanity. “Intelligence” carries connotations not only of adeptness but of sophistication and even elegance. After all, there’s something marvelous about how a mind like, say, Einstein’s took what seemed like a jumble of parts and derived compact, holistic explanations out of them. Intelligence doesn’t imply less, like efficiency, but better. And that’s what people want—not less, but better.