Solar panel systems include the following main components:
Solar panels which convert solar radiation into DC (Direct Current) power.
A solar inverter converts this DC power into AC (Alternating Current) power, which can then be used to run appliances and electronic devices.
A battery bank stores excess energy generated by the panels so that it can be used later when sunlight intensity is lower or there is no sunlight at all (optional for a grid-tie system and necessary for an off-grid solar system.)