|
|
Photovoltaic or PV generates electricity from sunlight. Small-scale PV modules are available as roof mounted panels, roof tiles and conservatory or atrium roof systems. 1-3 kW is a typical power output for a domestic installation although this is very flexible and depends on the number of PV modules installed. A typical PV cell consists of two or more thin layers of semi-conducting material, which is most commonly silicon. The electrical charge is generated when the silicon is exposed to light and is conducted away by metal contacts as direct current (DC). Although the electrical output from a single cell is small, when multiplied together a desired electrical output can be achieved. Therefore, PV cells are connected together and encapsulated, usually behind glass, to form a module or panel and any number of modules can be connected together. . To find out how to get PV technology please click on our Micropower Council member links below: |