Definitions for "Photovoltaic Module"
A unit comprised of several photovoltaic cells that is the principal unit of photovoltaic array. A photovoltaic module's size is on the order of 1 m2, although its size is governed by convenience and application.
The smallest environmentally protected, essentially planar assembly of solar cells and ancillary parts, such as interconnections, terminals, [and protective devices such as diodes] intended to generate dc power under unconcentrated sunlight. The structural (load carrying) member of a module can either be the top layer (superstrate) or the back layer (substrate). [UL 1703
Solar cells are typically combined into modules containing approximately 40 cells.