[font=Arial] You can use natural resources such as the sun, wind or water to produce your own energy in a greener, more sustainable manner - known as microgeneration. You can also access low carbon and renewable energy by buying greener electricity. What is microgeneration? Microgeneration is the use of low carbon energy technologies, such as solar panels or wind turbines, to produce electricity or heat in homes as well as business and community buildings. It provides a form of energy that is low （or zero） carbon and reduces the use of fossil fuels that are harmful to the environment. It can also save you money on your utility bills. When considering whether microgeneration is an option for you remember that upfront costs can be high and payback times can be long. Not all installations recoup their money. Microgeneration may increase your property value, though, and financial considerations should be taken alongside environmental considerations. Microgeneration technologies For more detailed information on specific microgeneration technologies, use the links below: Solar technologies Wind turbines Small hydro （water） power systems Other microgeneration technologies Buying green electricity According to the Energy Saving Trust, renewable, or ‘green‘ electricity, accounts for just four per cent of our electricity at present, but is set to grow over the coming years. Many companies offer to supply ‘green’ electricity. Packages vary, so check exactly what you are buying, but they generally fall into two categories: a green tariff – where a supplier will source an amount of electricity for you from renewable or low carbon sources a green fund – where a supplier will make a financial contribution on your behalf to support environmental projects or renewable and low carbon energy developments Electricity suppliers are already obliged by law to produce a certain amount of their electricity from renewable sources. So when switching to a green tariff check whether this means that additional renewable energy is being generated beyond the legal minimum. Only then will your choice of electricity supplier lead to an increase in the amount of renewable electricity produced in the UK. 原文鏈接：http://www.direct.gov.uk/en/Environmentandgreenerliving/Energyandwatersaving/Renewableandlowcarbonenergy/DG_064372[/font]