With deregulation, more companys are coming to Alberta to compete for your enery dollar. An article in the Calgary Herald today suggests waiting until all the players are in the game.
The prices do not reflect competition at this time. So you will get the price swings with the market changes. On the whole you might find that your enery dollars averaged over the whole year will probably equal out to what you would pay on a current fixed contract.
A better solution is to look at "green" alternatives. Wait for the Federal gov't to anti up for their part of Kyoto and get grants to modernize your home.
Another way to go would be to get a co-generation furnace. This uses natural gas to run a small turbine engine that can generate up to a 175 kilowatts electricty. The exhaust is use to heat a boiler to heat your home. The excess energy could be used to light your fish tank or sold back onto the electical grid.
Take a look - I want one.
http://www.mariahpower.com/