As discussed previously, wind turbines comes in many different forms, and the level of energy generation not only depends on the height of the tower but also where the turbine is placed and what the AMWS is for your area. Assuming you have an acceptable level of AMWS and a suitable site for placement, you can get turbines from 2kW to 500kW. With an AMWS of around 6m/s each turbine should produce full capacity energy generation. A 5kW system will provide enough energy for a typical UK household in a year, whilst 250kW and 500kW systems are for more industrial or community projects.
Below is a table showing a comparison of 3 turbines offered by wind turbine installers Segen (www.segen.co.uk):
| Evance R9000 | Gaia 133 | Westwind 18 | |
| Rating | 5kW | 11kW | 20 kW |
| Blades | 3 | 2 | 3 |
| Diameter | 5.4m | 13m | 18m |
| AMWS (m/s) | Annual kWh | ||
| 4 | 4,900 | 18,900 | 11,000 |
| 5 | 9,000 | 31,300 | 23,000 |
| 6 | 13,400 | 42,400 | 38,000 |
| 7 | 17,500 | 51,200 | 51,000 |
| 8 | 21,000 | N/A | 64,000 |
| 9 | 23,700 | N/A | 75,000 |
Annual electricity bill and energy usage: An average family in the UK uses between 3,000 and 4,000 kWh of mains electricity per year (excluding heating and hot water requirements).
Visit the Wind Home page
Other pages of interest in this section:
- What is Domestic Wind Power?
- How does it work?
- How much energy does it produce?
- How much does it cost?
- Are there Grants and Funding available?
- What is the Payback Period?
- Future Technology
- Overall Assessment
