How does it work?Solar photovoltaics use the sun's energy in a similar way to solar thermal panels but convert the energy into usable electricity. The panels are installed on a south facing roof and generate energy that is converted into electricity through an inverter. Any excess energy produced can be sold back to the National Grid. What are the benefits?The average household in the UK uses approximately 3,300 kWh of electricity every year. Therefore a 2 kWp system will produce nearly half of your yearly requirements and save 650 kilograms of carbon dioxide emission every year. How much does it cost?Systems can cost between £4,000 and £9,000 per kWp for an average system - most systems are between 1.5 and 2kWp. What grants are available?The Low Carbon Buildings Programme is offering a grant of £2,000 per kW of installed capacity, subject to a maximum of £2,500 or 50% of the eligible costs, whichever is the lower. Weblinks:The British Photovoltaic Association: www.greenenergy.org.uk/pvuk2/ |