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What are the factors that determine the efficiency of a solar panel?

How efficient are solar panels?


Depending on the location, orientation, climate, and similar factors, solar panels can typically convert 15% to 22% of solar power into usable energy. solar array systems are called sunlight performance which will be converted into real electricity, and therefore the result determines the efficiency of the solar array.


To determine solar array efficiency, the panels are tested under standard test conditions (STC). The STC specifies a temperature of 25 C and an irradiance of 1,000 W / m2. The sunshine that happens on a 37 inclined surface with sunlight is like a sunny day. Under these test conditions, a 15% solar array with a neighbourhood of 1 m2 will produce an efficiency of 150 watts.


In addition to plain test conditions, solar panels are extensively tested for extreme condition performance.


Extensive testing of solar panels in extreme conditions.

No consumer wants to finish up with solar panels that aren't technically superior. Solar power has major benefits, but it's important to put in the proper sort of solar array in your home. So as to make sure the standard of a solar array, it's extensively tested under extreme conditions.



A thick layer of snow is just too heavy for a solar array. When quite 5 cm of snow accumulates on a solar array and therefore the solar array efficiency decreases by 100%, the solar cells pack up. However, the slope of the solar panels allows snow to fall, otherwise, it is often removed manually.


Are solar panels effective in winter?


The wind is one of the foremost common predictors of photovoltaic cell damage. solar array manufacturers perform extensive structure inspections to attenuate damage.



Hail testing involves the appliance of artificial hail at speeds of 20 to 30 m / s. At this speed the solar cells aren't damaged.



When the silicon coating isn't applied, ice forms on the surface of the solar cells. Making ice has the potential to scale back solar array efficiency by 25 to 100%.


Chemical residue

The chemical residue must reach the surface of the solar cells to dissolve a minimum of 20 mm of rain. Research has shown that covering a layer of chemical build-up reduces the solar panel's efficiency by 0.2%.


Ultraviolet damage

Ultraviolet induction can destroy a photovoltaic cell structure. Another consequence could also be the discolouration of individual solar cells.


Moist heat test

Humid heat testing is performed to see the length of the solar panels in very humid conditions. this will cause moisture damage, module connection failure and reduced solar array efficiency.


Insulation resistance

Insulation resistance is decided by the strength of the fabric. In fragile materials, current leakage may occur at the sides of the solar array.


Thermal cycling

Thermal cycling can cause solar array components to fail. These components include solar cells, interconnections, solder bonds, and module connections.


After installation, all factors affecting the efficiency of the solar array got to be considered. Moreover, it's essential to maximise the output from the trip.


Why extensive testing of solar array efficiency in extreme conditions?

Solar panel efficiency testing is completed to stop the sale of inferiority solar panels within the market. The manufacturer must prove that solar cells have long-lasting durability and long-term efficiency. Solar panels available within the UK market are first certified by extensive testing.


Typically, solar cells are tested in state-of-the-art, fully automated solar array testing facilities. This high level of experimentation enables solar array efficiency to be classified into groups with similar power with output.

NJ Solar Solutions Private Limited is the one stop solution for all solar products in Kerala. 

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factors determine the efficiency of a solar panel in Kerala

factors determine the efficiency of a solar panel in Kerala