How Do Solar Panels Work

Solar panels usually have an efficiency rating somewhere between 40% and 60%. The decision to go solar is the first step in installing environmentally friendly products that will bring economy to your future energy needs. Discover the benefits of photovoltaic and solar hot water heating technology. When sunlight strikes the solar panel, photons from the light are absorbed by the semiconductor atoms, which then release electrons. The challenge for future scientists will be to create more efficient solar panels are small enough for practical applications and powerful enough to create excess energy for times when sunlight is not available. The longevity rating of a solar panel refers to the number of years before the unit starts producing only 80 percent of its original power rating. Solar power directly converts the energy delivered by the sun into electricity. Solar panels should generally face South in the Northern Hemisphere and North in the Southern Hemisphere. The angle of a solar panel should be set to the equivalent of your latitude plus 15 degrees during winter, or minus 15 degrees in summer.