Every time MB tried to build a power line to ON, ON decided they didn't want MBs cheap power.  Maybe times have changed.  So how about I buy power here in MB for $0.03 /kwh wholesale, run a big extension cord down to TO, and sell it to ON for $0.80 /kwh.  That way, ON would be paying the same as for those windmills, and I'd be making about a billion $ a year.