How much does a wind turbine cost?
The costs of buying and installing a wind turbine system vary dramatically between manufacturers and installers. It is therefore necessary to do as much research as possible before making a decision over whether to install a wind turbine system.
There are two main types of wind turbine:
- small, cheaper, and less cost-effective building-mounted turbines (sometimes called ‘microwind’ turbines), with a typical power output of up to 1.5 kilowatts (kW)
- larger, and more expensive, standalone pole-mounted turbines, which tend to have an output of over 1.5kW
The table below gives you a rough idea of the initial costs of domestic wind turbine systems:
|System size||Indicative system cost (incl. VAT @5%)||Approx. yearly system output*|
*We have assumed the average UK wind speed of 5.6m/s for the sake of illustration. The actual system output is predicated upon a large range of factors. Larger, higher output turbines also tend to be mounted at greater heights, where wind speeds are higher.
Depending on the type and size of the turbine, there are also annual system maintenance costs which one must bear in mind, though these tend to be relatively small. Since they rely on relatively simple mechanical processes, the turbines themselves tend to have a long life, and typically come with a service warranty period of 10-20 years. If the wind turbine system contains batteries for the storage of the electricity generated, these will probably need to be replaced around every 5 to 10 years.