Wholy cow, this is more expensive than in Iceland rural! (We pay a lot more than the people in the capital, however they are more numerous and decide the price
). My bill is about 9 cents per KW.
In my case, we have our hot water via a boiler. Takes 2KW and contains 300 liters. Since we run a guesthouse, and normally have a reasonably big household, the boiler is practically always on for a good part of the day, then it rests a bit. ( avg 17 showers taken each day, + dish-washing etc) .So, I have a good reason to belive, that if the boiler was bigger, or just 2 of them, I could heat it with a windmill. Lookie here:
This little cutie (link
http://www.kleinwindanlagen.de/html/inclin_3000.html) will give me a KW at only 5 m/s which is the average wind where I live. It might do and the price is 5.000 Euros (6666 $ today). Avg. performance would be 24x365=8460, in my price close to 800 USD (in your price more), so almost 1/8 of the investment in one year.
Actually our average wind is not the best figure, it's more shifting between calm and breezy, which indicates according to the power curve, that the output could be slightly more.
The only problem remaining is interest rates, since they would suck up the profit. Evil, aren't they....