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Description

Abrev

Explanation

 Result





Rated maximum power

Wp

Maximum power that can be dissipated by the solar panel


 10W

Open circuit voltage

Voc

This is the voltage you will see on a test meter when you test the + terminal and the - terminal on the back of a solar panel in full sunlight with the solar panel not connected to anything.

 22.0V

Short circuit current

Isc

This is the measurement of the highest electric current which can exist in the solar panel under short-circuit conditions.

DO NOT TRY TO TEST THIS AS IT WILL DAMAGE YOUR SOLAR PANEL.

It is calculated by the voltage and impedance of the solar panel


 0.61A

Voltage at Pmax

Vmp

This is the best voltage you can get from this solar panel under the optimum conditions of heat, light and connection.

When the solar panel is connected to a battery this will drop to between 12 to 14 volts


These figures are obtained under light intensity of 1000 W/m2 and a constant 25 C temperature.


 17.5V

Current at Pmax

Imp

This is the best Amperage you can get from this solar panel under the optimum conditions of heat, light and connection.


These figures are obtained under light intensity of 1000 W/m2 and a constant 25 C temperature.


 0.57A

Output tolerance


This is the range a solar panel will either over perform or under perform its rated power under optimum conditions.

Every solar panel made will have slight variations due to manufacturing and this is to show these panels all fall within a range of -3% to +3%.

E.g  this 10W panel can range from 9.7 to 10.3

 0 TO +3

Maximum system voltage


This is the maximum Voltage you can string a lot of panels in series

When you connect a few solar panels together in series you will multiply the voltage.

Eg  12v + 12v + 12v + 12v =48v

The maximum system voltage for these solar panels is 600v so you could connect 50 x 12 v solar panels but you shoul allow for over voltage and only connect about 45 solar panels to stay on the safe side of your maximum system voltage

 600V

Module size


Module size is usually the total external frame size of the solar panel.

Width x height x depth in millimetres  

 290 mm

 354 mm

 20 mm

Solar panel information from Ecoboris

What does it all mean ?

This is the lable you will see on the back of every solar panel from 5 Watt to 310 Watt

All of the descriptions will be the same on solar panels from 5 Watt up to 310 Watts

Below is a guide to help translate the label on the back of all solar panels.

For our example we have chosen our 10 Watt solar panel.

The result numbers will be different to identify the different size solar panel wattage and outputs.