Roof microwind systems can cost as little as £2,000 but the larger mast mounted turbines can be anywhere between £15,000 and £24,000, including VAT and installation.

Well positioned 6kw turbines can generate up to 10,000kwh per year, which is equivalent to 5.5 tonnes of carbon dioxide.

What’s more, the income and savings every year can be as much as £3,200 when eligible for a feed-in tariff.

Wind turbines do need maintenance every few years but on average they have a life expectancy of up to 20 years.