Solar panel efficiency is a measure of a solar panel’s ability to convert sunlight into usable electricity. For example, if we provide the same amount of the sun shining for the equivalent period on two solar panels with different efficiency ratings. Then we can see, the panel with higher efficiency will generate more electricity than the lower one. So, how important is module efficiency? Here, we at Eco Green Energy, list some points for your references.
About Solar Panel Efficiency
As we all know, the panel size, the cell layout, and of course the design of the panel, including the cell numbers and types, the busbar design, and the interconnection of the cells, even the color of the panel protection plate can affect the efficiency. Then, choosing solar modules with high efficiency is especially important. That means you can use limited areas to get more electricity.
Here we can have a look at Eco Green Energy’s new generation product – ATLAS. With up to 21.28% module efficiency, it can be used for large-scale solar projects. And now Eco Green Energy has received two orders of ATLAS 540W from Mexico and Poland markets.
(Eco Green Energy ATLAS 144 cells datasheet-electrical data)
Factors Determine Solar Panel Efficiency
To make it simple, the determination of solar module efficiency is the amount of sunlight the solar PV modules can transform into usable electricity. Then what will limit the conversion rate?
Raw materials – polycrystalline silicon, cells, PV glass, EVA, etc.
Wiring and Busbars – the associations of wires on a solar PV module that catches and passes on electricity influences efficiency.
(Eco Green Energy solar panels raw materials)
Here we would like to have a deep dive into the Eco Green Energy ATLAS 540W solar panel. First of all, the Grade A 182mm cells, larger cells dimension will increase the area of the cells on the panels, which will help the ATLAS series to be more efficient.
Secondly, the 10BB design reduced busbar space and the intensity of the electricity between each cell, thus increase the solar module efficiency.
Thirdly, Eco Green Energy uses high transmission (94%) PV Glass with anti-reflective coating for the ATLAS series. As we all know, if the sunlight directs at a solar PV module, it may disturb the panel’s efficiency. This is why we need to put the high transmission glass sheet on top of the solar cells.
(Eco Green Energy 1GW Factory fully automatic production line – glass loader)
Last but not least, EVA used for ATLAS panels is of high quality, which has 0.6mm thickness, and 420g/sqm² weight. Generally speaking, EVA plays an important role in protecting the cell and provides structural support for the panels; EVA can improve the light transmittance of glass in melting, the light incidence rate, thus improves the output power of solar panels.
In fact, module efficiency is one aspect to consider when going for solar PV modules. Also, you need to check other points, such as the product warranty, the power production rating, the solar panel’s brand, etc. Then, please keep in mind to choose suitable and high-efficiency solar modules.