How does it work?Harnessing wind as a renewable energy source involves converting the power within a moving air mass (wind) into rotating shaft power, which in turn generates electricity. Turbines vary in size. Applications range from small turbines used to power a battery on a boat to very large turbines used on wind farms. Household systems are typically sized up to 6kW. What are the benefits?A 6kW system can provide up to 15,000 units of free electricity (an average house uses around 3,300 kWh) and save up to 6 tonnes of CO2 emissions per year. How much does it cost?Systems up to 1kW will cost around £3,000 whereas larger systems in the region of 1.5kW to 6kW would cost between £4,000 and £18,000 installed. Costs vary depending on location and the size and type of system. What grants are available?The Low Carbon Buildings Programme is offering a grant of £1,000 per kW of installed capacity, up to a maximum of £2,500 or 50% of eligible costs, whichever is the lower. Useful LinksThe British Wind Energy Association (BWEA): http://www.bwea.com/ |