Solar Panel Diagram

Solar modules DO NOT require heat in order to produce energy: in fact, their power output reduces slightly when they become very hot. A cooling breeze or bright white cloud can increase a solar
module's normal output.

What is the best location for the placement of solar modules?
The ideal location for solar modules is facing north (or south in the northern hemisphere), preferably where they will be free of shading from buildings and overhanging vegetation for the whole day. Even a small amount of shading on the solar array will greatly reduce the amount of power produced.

What are solar modules made from?
Solar modules in commercial production are generally made from one of three types of cells:

1. Monocrystalline thin wafers cut from a large circular single crystal of silicon.

Solar cells of this type are the most efficient available and hence solar modules produced with this type of silicon are slightly smaller than those made with other types of cells. BP solar panels are comprised of monocrystalline cell.

2. Polycrystallineare made from thin wafers cut from a group of tiny crystals pieced together.

Solarex panels are made up of polycrystalline cells.

3. Amorphous or thin film cells - formed by laying a thin film of silicon directly on the glass, by the condensation of gaseous silicon. The thickness of these cells can be measured in numbers of atomic layers.

These are the type normally used in calculators and other small appliances.

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