Ridiculous. Anyone offering you 61% APY is taking you in for a ride.
The idea itself doesn't even make sense. We know where the cheap electricity is. That doesn't change from month to month. While you stuff a shipping container full of ASICs and send it traveling through the world, Jihan runs his warehouses on subsidized government electricity.
They can plan for 5 years all they want, they'll be out of business by 2020.
We don't know where surplus electricity is because it changes with weather conditions for renewable sources.
I wouldn't be so quick to assume, but fair enough if that's your point of view!