If you already have, or plan to install microgeneration such as photovoltaic cells, you can earn money from your energy company. Under an initiative called the Feed-in Tariff, householders who install equipment to generate green electricity will benefit not only from the free electricity they produce, but will be paid for every kilowatt hour they generate. Follow the link below to the Energy Saving Trust for full details on what you need to do, and what you can get.