You can get a device rated at 12 volts or higher for only $100 at a marine supply store or RV store. Next, purchase a battery. Experts recommend that you get rechargeable batteries from available green companies. Get any size of deep cycle 12 volt lead/acid or gel battery. You will need the deep cycle battery for nonstop use. Henri Becquerel discovered the photovoltaic effect that allowed the conversion of solar electric energy. Becquerel's discovery triggered the invention of the first true solar cell by Charles Fritts in 1893, which was created by coating selenium sheets with a thin gold layer. The solar panel was then created afterwards. There are plenty of solar applications that a homeowner can use to get the many benefits of solar thermal energy, such as solar space heating, solar pool heating, solar water heating and solar thermal cooling. Photovoltaic solar power is described as the energy made by converting solar power into electricity via photovoltaic solar cells. Solar panels do not have any moving parts and will need only minimal maintenance. As soon as the system has paid for its initial installation costs, you can get the benefits for several decades more for free. Buying Solar Panels There are plenty of places where you can buy the best solar panel models. More available sunlight can then be used. Focusing linear Fresnel reflectors can be used well in compact or large plants. The Stirling Solar Dish The Stirling solar dish is also called a dish engine system, which is made of an independent parabolic reflector that tends to concentrate light right onto a receiver placed at the focal point of the reflector. This actually played a role in their ability to produce a good growing condition for plants. Solar Hot Water Heater Prototype Unknown to a lot of people, but the original prototype for solar hot water heaters is actually a result of do-it-yourself projects of people in their hopes to be able to boil water, and keeping the water hot for a longer period of time.