Incorporation of a wind mill may provide you with a nice way of supplying electricity to store in batteries.
Due to the unreliable, steady wind, it’s subject to be used in conjunction with some type of storage.
The most versatile way of storing the wind energy, is to use batteries. Yet, you may also use it to generate heat in a storage tank. It may then be used e.g. in a central heating system.
If batteries are being used, you are free to use the electricity both at low voltage (12/24/48V) or at 220/240V using an inverter.