Solar panelsconvert sunlight into electricity through a process called the photovoltaic effect. During this process, solar panels collect electrons from the sun's light in the form of direct current (DC) electricity, which then pass through the inverter to convert into usable AC electricity (more on that below). Individual panels are. Inverters are the brains of a solar power system. They are responsible for converting DC power (from your panels) into AC power (the format that is usable by your household appliances). They also route the flow of electricity. Racking is the foundational structure that secures your solar panels in place. Racking systems come with mounting rails and flashings to secure the rails to your rooftop or ground mount. The majority of home solar systemsfall. In off-gridand battery backup systems, a local battery bank is necessary to store usable energy on-site. This is helpful in the event of grid failure,.