PV Modules

Array: A PV Array is the complete power-generating unit consist of any number of PV Modules and panels.

Panels: PV Panels include one or more PV Modules assembled as a pre-wired, field-installable unit.

Modules: PV Modules consist of PV cell circuits sealed in an environmentally protective laminate and are the fundamental building block of PV systems.

Cells: Semiconductor  device that convert sunlight into Direct Current (DC) electricity.

A PV module consists of many PV cells wired in parallel to increase current and in series to produce a higher voltage.

The photovoltaic effect is the basic principal process by which a PV cell converts sunlight into electricity. When light shines on a PV cell, it may be reflected, absorbed, or pass right through. The absorbed light generates electricity.

The module is encapsulated with tempered glass (or some other transparent material) on the front surface, and with a protective and waterproof material on the back surface. The edges are sealed for weatherproofing, and there is often an aluminum frame holding everything together in a mountable unit. In the back of the module there is a junction box, or wire leads, providing electrical connections.