The rising cost of organic fuel and its dangerous consequences for the environment are opening the door to widespread use of alternative energy sources. Biofuel is finite in nature and the whole world is worried about what will have been exhausted. The most practical solution for this situation is to use renewable energy sources such as sun, wind and tide to reduce dependence on biomass fuels. With the help of solar panels can convert sunlight into energy to meet their daily energy needs such as water heating and electricity production. Solar panels can be installed on the roof of his house and connects to the heating of the house. Solar panels to heat water only when they are known as solar thermal systems. The collector of this system is capable of absorbing and converting solar radiation into heat. After that, the heat conduction process is to transfer heat from the collector to the water tank. Photovoltaic systems are solar panels to produce electricity. If photovotaic solar systems, an electric field is created by placing a positive charge layer of silicon to silicon with a layer of negative charge. When the sun sets in this field, electric charge is created. Then, with the help of drivers, this accusation is presented to the power supply units. There are many advantages of installing solar panels. This gives you access to free and clean source of energy. You can control the environment and reduce pollution from fuel and electricity. Now, some U.S. states are offering incentives for installing solar panels. Estimates show that the solar panels in the five years of the facility are able to cover the investment in it. It s definitely a good investment if you plan to stay at home for a longer period.