Wind turbines are used to harness the wind's energy by turning aerodynamic blades that turn a rotator to create electricity.
Small scale wind turbines that can be installed on roofs are now available to buy for home use. A typical domestic system would be between 2.5 and 6 kilowatts.
- Relatively minor increases in wind speed result in large changes in potential output. The best sites have an annual wind speed of at least 5 meters per second.
- Knowledge of local wind speed is critical. For more information, visit the British Wind Energy Association website.
Cost and maintenance
Systems up to 1 kilowatt can cost up to £3000. Turbines can have a life span of 20 years, but need regular servicing.
This system is eligible for the Feed In Tariff.
For more information about whether you will need planning permission, see renewable energy planning advice for householders.