Recently, more and more people realize that solar energy is a promising futuristic virtually unlimited energy from the sun is there, estimated at several billion years. This clean energy can be harvested and converted into electricity at home with solar panels. Electricity generation by solar panels, environmentally friendly and solve the environmental problems associated with conventional electricity generation in thermal, hydro and nuclear power plants connected.
Thermal power plants are a major source of air, as they generally produce the combustion of fossil fuels such as coal, oil and natural gas stream. These plants, the use of natural gas as fuel, large quantities of carbon dioxide, which is an important contribution to global warming. There are also some toxic substances ranging from lead and mercury released into the environment of sulfur dioxide from burning fossil fuels. In addition, could particles (example, ash content in fossil fuels) at risk from these plant-derived public health.
Nuclear power plants in connection with the problem of radioactive contamination. In these plants, uranium fuel and energy during nuclear fission and radioactive waste, radioactivity remain free as long as thousands of years. As fossil fuels produces uranium fuel additional emissions from the extraction, purification and transport process. In addition, cooling water, both thermal and nuclear power plants with toxic substances and high temperatures, contaminated, affecting aquatic ecosystems around the discharge points.
Hydropower, as well as more benign, but nonetheless built a significant impact on aquatic ecosystems due to their high dams on rivers, often to generate electricity. As an example, these dams block the migration routes of salmon. In addition, the organic substances at the foot of the dams built to break down and release of large amounts of methane, which is a potent greenhouse gas.
Today, when the price of fossil fuels has increased rapidly consume its homemade solar panels really at a very competitive solution for every household to move away from environmentally harmful and expensive power by the above conventional power plants. It is estimated that to be a 5-kW solar power system a household can be as much as 5.2 tons in reducing its annual carbon dioxide emissions. Solar systems can be easily built themselves at a very reasonable price.