How can photovoltaic cells be used to provide usable electricity?
The photovoltaic cells provide a current that is not directly usable in most appliances. A charge controller regulates the electricity from the photovoltaic cells and converts it into a form that can be stored in an array of batteries. The batteries are usually specially designed systems that store a large amount of energy. This energy can be used to supplement the power purchased from the local power company and in some cases, it can cause the electricity meter to move backwards! This means that your monthly bill will dramatically decrease; some systems provide more energy than is needed, so it is possible to receive rebates by selling electricity to the power company. • Where can these solar systems be used? These systems vary in size, cost and the amount of electricity produced. They can be used in remote (“off-grid”) areas or in residential neighborhoods that are connected to the power grid (“on-grid”). The convenience of these systems is remarkable, they can be used to power remot
