Interesting question. For the same hashrate then less electricity is going to be used given that ASIC mining is far more efficient that GPU mining. But the ov

Interesting question. For the same hashrate then less electricity is going to be used given that ASIC mining is far more efficient that GPU mining. But the overall hashrate is still on an ever upward trend. I guess it depends on how many people have quit CPU and GPU mining altogether, or whether there are still lots of forgotten machines still burning away contributing very little (in comparison).