I'll put my FIWind cost out there - less than a buck a month on my Chugach bill.   I'm well on board with that project and would be willing to do ten times that if CEA had the brain power to opt in for a bigger slice of renewable power as a choice.  Bellingham Wa already has that, it's what a truly forward thinking, committed utility does among other things.  They rebated LED bulbs at the local Home Depots years ago as well.