In BC if you want to produce your own electricity through solar/wind, the government is looking at limiting how much you can have based upon your house hold needs. It has to do with BC hydro paying for the extra electricity from these sources. So if you are going to go that way make sure you include future expansions like hot tube, 4 car charging (2 adults, 2 kids) and you like to keep your house at 24 degrees in winter.
Also the price of electricity will go up. Cost of living/business, how much extra money the government needs too, cost of maintenance and new dams, how much California refuses to pay BC hydro for electricity, etc. You will see an increase about every 3 years or so mostly due to government (lack of income) but put under maintenance etc....