Solar battery, solar panel - a combination of photoelectric converters (photocells) - semiconductor devices that directly convert solar energy into direct electric current, in contrast to solar collectors that heat the heat-transfer material.

Various devices that allow converting solar radiation into thermal and electrical energy are the object of research in solar energy. The production of photovoltaic cells and solar collectors is developing in different directions. Solar panels come in a variety of sizes, from those built into calculators to occupying the roofs of cars and buildings.

Usually, a solar power plant consists of one or more solar panels, an inverter, and in some cases a battery and a solar tracker.