How To Test Efficiency Of Solar Panel

Solar panel efficiency is a measure of how much sunlight that hits the surface area of a solar panel is converted into usable electricity.

How to test efficiency of solar panel.

To calculate the efficiency of your panel just multiply the amount of sunlight that hits the earth s surface in your area known as the incident radiation flux by the area of your panel measured in square meters. The highest efficiency solar panels on the market today can reach almost 23 percent efficiency. You will want to ensure that you place the positive to positive and negative to negative when attaching your multimeter to the connection on the back of your solar panel. The average efficiency of solar panels falls between the 17 to 19 percent efficiency range.

Attach the meter to the positive and negative terminals on the solar panel and make sure the panel is properly exposed to sunlight. Set the meter to above 200 vcd to ensure you get the most accurate reading possible. Step 3 measure current. Given the same amount of sunlight shining for the same duration of time on two solar panels with different efficiency ratings the more efficient panel will produce more electricity than the less efficient panel.

So if a solar panel has an efficiency rating of 15 that means 15 of the sunlight that hits the solar panels will be converted into electricity. As long as the amp meter is rated higher than the solar panel you will be able to measure the output effectively. Solar panels have been consistently increasing in efficiency at about 5 annually since 2010. The electrical power produced is a product of current and voltage.

The efficiency depends on factors such as the intensity of the sunlight the solar cell s temperature and other external factors. What you need to know. Most solar panels have efficiency ratings of around 15 to 18 percent. Then touch the multi meter s black negative lead to your solar panel s negative wire.

How much of the sun s energy hitting a panel is eventually converted into electricity is what is measured by efficiency. Testing solar panels for volts to test solar panel voltage output put your solar panel in direct sunlight set your multi meter to the volts setting and. Touch the multi meter s red positive lead to your solar panel s positive wire.