FWIW I thought I'd add our experience of using a wind turbine. We've built an energy efficient, off grid house on a relatively exposed hillside in SW Scotland. We have solar PV panels, a diesel generator and a small (2kW) wind turbine. These all feed a large battery bank which powers the house.
The house is 4 bedrooms, and has the normal range of electrical appliances etc., although we use LPG for cooking.
The solar panels are the most effective - in summer, we have plenty more power than we need. In winter, the generator is needed daily - roughly about 2-3 hrs each evening to top up the battery bank. It also starts up if using a washing machine or other 'heavy use' appliance.
Our wind turbine is often turning but needs a stiff wind (about 25mph + ) before it generates much power and mostly never does more than slow down the rate of discharge of our battery bank. On the plus side, it is able to withstand the 60 /70 mph winds we have had recently. On those nights it is useful, but they are inconsistent.
My dream is to add a micro hydro system, using the river we have at the bottom of our site. that could provide a steady, reliable feed into our system, especially during the dark, wet winter months.
In summary, I'm glad we got the turbine as an addition, but we could not rely on it alone.
Hope this helps.