In the field of
photovoltaics, a photovoltaic module is a packaged interconnected assembly of photovoltaic cells, also known as
solar cells. An installation of photovoltaic modules or panels is known as a
photovoltaic array. Photovoltaic cells typically require protection from the environment. For cost and practicality reasons a number of cells are connected electrically and packaged in a photovoltaic module, while a collection of these modules that are mechanically fastened together, wired, and designed to be a field-installable unit, usually with a
glass covering and a frame and backing made of
metal,
plastic or
fiberglass, are known as a photovoltaic panel or simply solar panel. A photovoltaic installation typically includes an array of photovoltaic modules or panels, an
inverter,
batteries (for off grid) and interconnection wiring.
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