I'm saying that power-efficient appliances were an innovation that responded to high energy prices, and with the reduced rate of growth in energy demand has come reduced innovation, which has had the effect of enabling the economics of dirty and inefficient energy generation.

Energy production plants aren't public infrastructure, they're productive capital that has been mismanaged as infrastructure for the last 100 years. When you build a geothermal plant to mine coins, you are making it economically viable at every price, and you can collect or divert surplus electricity to use it to power a city. Governments could even compel power generators mining coins to send a percentage of their electricity usage into the grid as a "tax." I'm suddenly optimistic about this.