I'm no longer living in Canada, where I had this set up. Under normal conditions the windmill would be close to 60% of the power required for the house, the rest was solar.
We did just about everything we could to conserve power though, one of the lessons you learn fastest when working with renewables is that it is a lot easier to save a Watt than to generate one.
The machine was a 16'er, or about 5 Meters, so a swept surface of 18 square meters or thereabouts, it cost a small fortune to build because I was planning to make it in larger numbers. Designed power was about 2.5 KW, it came out a bit less than that, mostly due to a slightly larger air-gap than what I had planned on (the plasma cutter nozzle used to cut the stator laminates was wearing down, and cutting with a slightly larger diameter jet than planned).
The design is far from perfect but for a first try at a variable pitch machine it worked pretty good. It survived several major storms without failure, we only took it down because we emigrated back to Europe. It's laying in pieces on the garage floor waiting for better times.
edit: the only way to get 100% of the power for your house from the wind would be if you would consent to being without power every now and then. After all , the wind only blows so much, and when it doesn't you'll need to have either enough power stored up in batteries or you'd have to have an alternative source.
What people do to get to the economical equivalent without using batteries is if their grid operator allows it do something called 'net-metering', this allows you to pump your excess power into the grid and back out again when you need it for the same price.
The whole uncoupling of network and electricity production is seen by plenty of people in the renewable energy scene as a way of discouraging net-metering, after all, if the 'base' rate per KWh is already quite a bit just for transport then they can afford to give you a crappy price for your excess power, and charge you twice for the storage and retrieval of the power.
