Then visit this site: everykilowattcounts.ca. It shows you how you can get rebates towards any air conditioner you purchased. Apparently it is retroactive to 2009, which means if you didn’t know about this when you bought your A/C last year, there is a chance you can still apply.
You can use the money to help pay for the new unit. Or you can do some other things around the house to make it even more energy efficient (e.g. replace light bulbs, seal up doors and windows against draughts).
Stay cool.
Smart People I Know 