There isn't such thing, the difference between electric cost are huge in each country depending on what provider you have whether you are running an industrial plan, you have a custom deal, you sue solar or wind, endless variations that make that average useless.
Again, stupid. This kind of mining "capitulation" has happened with cpu, with gpu, with fpga with s3, sith s7 with avalon1, the sp10 or Saturns and Jupiters miners. Are there farms using JD model D, anymore? No! Have they capitulated? Is agriculture dead because new and modern equipment is coming out and farmers are trying to keep up?
No such thing, price tells miners what to do, not the other way around.