If you are asking about co-location, there are already various data centres in the ACT (Australian Capital Territory) that offer co-location services.  I don't know how much they charge and if any of them accept Bitcoin miners.  It's just a thought that someone could do the maths, rent some warehouse/office space and using the relatively lower electricity costs there for co-location of mining.  There are probably places in the world with much lower electricity costs, but that would require shipping your miners to some other country, then retrieving them when the co-location contract runs out or is no longer profitable.

Cheers