A diode used to block reverse current from flowing backward through a module and protects against the risk of thermal damage to solar cells.

Alternating current as from mains power supply 110v or 220/240v 50/60Hertz. Described as alternating because the current oscillates from positive to negative and back again 60 times each second; used by power companies because voltage is easier to control.

(Ampere)

(Ampere Hour)

This is a measure of the angle in degrees between the direct solar rays (straight on) striking a surface and a line perpendicular (vertical) to the surface at the point of impact.

Any number of solar modules (plus the additional components necessary) connected together to provide a single electrical output.

The direction the solar panel or array faces described as an angle from the face of the panel to North; for example: Azimuth of 180 degrees means the panel or array faces due south.

A conducting path around which electrons may flow. Electrical circuits can be complex, but at the simplest level, you always have the source of electricity (a battery, etc.), a load such as a light bulb or motor, (an animal touching your electric fence), and two wires to carry electricity between the battery and the load. Electrons move from the so [..]

A material through which electrons will readily flow. (All metals are conductors). Electricity will always take the shortest path to the ground. Your body is 70% water and that makes you a good conductor of electricity. For example: If a power line has fallen on a tree and you touch the tree, you become the path or 'conductor' to the grou [..]

It is the current and the duration and rate of its flow which causes a Shock. Increasing the voltage increases the current. Current decreases as resistance increases. Measured in Amps