Installation of photovoltaic silicon panels Product introduction

What is a solar PV module?

Solar modules, though similar in design (silicon crystalline-type) will vary by size and power produced. Readers are encouraged to refer to the Extension factsheet, “Demystifying the Solar Module” (AZ1701) for information about solar PV modules. Simple systems have fewer components, but are limited to providing energy when the sun is shining.

Should a general contractor install a solar PV system?

A general contractor may face a choice between using an electrical subcontractor or a solar subcontractor to install the PV system. A good solar contractor will have the expertise in solar PV systems plus qualified electricians on staff.

How does a photovoltaic system work?

The heart of a photovoltaic system is the solar module. Many photovoltaic cells are wired together by the manufacturer to produce a solar module. When installed at a site, solar modules are wired together in series to form strings. Strings of modules are connected in parallel to form an array.

What is soiling in solar panels?

or other contaminants on the surface of the PV modules is known as soiling. This blocks the s nlight from reaching the solar cells and reduces the electricity generated.Soiling s significant especially in the dry season and near the construction sites. In case the PV modules are installed where cleaning cannot be carried

Is a PV cell a insulator or a semiconductor?

The PV cell is composed of semiconductor material; the “semi” means that it can conduct electricity better than an insulator but not as well as a good conductor like a metal. There are several different semiconductor materials used in PV cells.

When can new PV modules be added?

New PV modules can be added at any time. Photovoltaic (photo = light; voltaic = produces voltage) or PV systems convert light directly into electricity using semi-conductor technology. (@ 10% efficiency) Thermal systems (hot water, pool heaters) produce heat from the sun’s radiation (@ +40 % efficiency) Large difference in value of energy types.