Yeah I'm hoping for a very long and cold winter.  Not as far north as you but in the North East US.  My electrical rates are twice your own, which doubles my own ROI.  But not having to turn on the heater this year could also save me $600 USD.  And since I started at the end of summer mining I'm not paying full freight on my cooling costs, with the 30C to 35C heat we've had this year.