I think when energy hits a certain price point and stays there for a long time it makes sense to try to squeeze more productivity out of the same quantity of en

I think when energy hits a certain price point and stays there for a long time it makes sense to try to squeeze more productivity out of the same quantity of energy, but then when energy comes down in cost it opens up possibilities that were cost prohibitive before. The short term trend was towards lower per capital use, but over the long term new cheaper forms of energy drive demand up.