Wind power is an interesting alternative power solution because it relies on your location having access to a constant wind. Coastal and exposed areas offer the best positions for this type of solution. Contrary to popular belief, you do not need a strong wind, just a constant one.

Again, advances in technology have made the wind turbines of today much more efficient. A wind powered solution has one significant difference over the solar power solution - moving parts, and moving parts require maintenance. Wind turbines also spin and make noise. Now it's not a huge amount of noise, more like a hum, however you'd want to keep the tower and the propeller system away from your main living quarters.

And as I mentioned earlier, the turbine (the moving parts) will eventually require servicing due to wear and tear, if you are not comfortable climbing up a tower you might want to rethink this choice. Similarly to solar power, the created electricity is stored in banks of batteries and this solution can also be tied back into the grid.