To get the most out of today’s domestic turbines, you really need to live on top of a very windy hill

It’s no secret that domestic wind turbines are controversial, slated by some as not being able to power a hairdryer; portrayed by their supporters as misunderstood. Suppliers only have themselves to blame: one of the main reasons turbines got such a bad press is that several of them quoted a performance that assumed a wind speed of 12 metres per second (m/s), which is way beyond normal velocity anywhere on the UK mainland. The wind speed database says that at 5 m/s you’re in business and 6 m/s is sounding like a good site.

PROS

• Relatively cheap: installation begins at around £2,000 for a 1kW turbine (well below an average home’s needs).

• The Low Carbon Buildings Programme will offer a grant.

CONS

• The wind speed database only gives an average figure, and doesn’t account for local elements such as buildings and trees which will affect wind velocity – so you’ll need to buy an anenometer.

• Warwick Wind Trials suggest this technology has a way to go before it’s a practical option.

Useful Contacts

B&Q: www.diy.com
Greenphase: www.greenphase.com
Ampair: www.ampair.com
Green Works: www.greenworks-energy.co.uk

Words: Dominic Murphy  Image: B&Q