Solar panels convert sunlight into direct-current electricity, which an inverter changes into the alternating current used by appliances in your home. Your system can use solar power as it is generated, export surplus electricity to the grid, or store some energy in a battery. Output varies with panel orientation, shading, weather, system size and household usage, so panels do not produce the same amount of power all day or year. Compare quotes from accredited installers and check current Australian government information on rebates, feed-in tariffs and installation requirements.