☀️ JA solar panels have very good efficiency ratings of over 20%, which is more than the industry average of 15-18%.

☀️ JA solar panels are half-cut cell panels, an advanced technology that increases their energy output.

☀️ JA solar panels are manufactured by a Tier 1 company, which means it is an established and trusted business.

JA Solar is a leading solar panel manufacturer based in China, East Asia. It produces high-efficiency monocrystalline and bifacial solar panels for residential and commercial applications. JA Solar panels are known for their low cost, high power output, and robust reliability. JA Solar is also a Tier 1 solar panel manufacturer, which means it uses advanced robotic techniques and high-quality silicon (Si) to ensure consistent performance and durability. They also strive to have a positive environmental impact, as they reduce greenhouse gas emissions and fossil fuel consumption.

In this blog post, I’ll introduce some of the popular JA Solar panels and their features. I’ll also explain how you can get a free no-obligation quote from NXTGEN Energy if you’re interested in installing JA Solar panels on your roof.

DeepBlue 4.0 Series Solar Panels from JA Solar

DeepBlue 4.0 Pro

This is the latest product from JA Solar, launched in May 2023. It has a power rating of up to 550W and an efficiency rating of up to 21%. This means that it can produce more electricity from the same amount of sunlight than other solar panels of the same size. It uses N-Type cells, which are more efficient and resistant to degradation than P-Type cells. N-Type cells have a negative charge on both sides, while P-Type cells have a positive charge on one side and a negative charge on the other side. This makes N-Type cells less prone to losing electrons and therefore they don’t lose as much performance over time.

The DeepBlue 4.0 Pro also has a half-cut cell design, which reduces the electrical losses and increases the power generation capacity of the solar panel. A half-cut cell is a solar cell that is cut into two equal pieces and connected in parallel. This reduces the resistance and heat in the circuit and improves the output voltage of the solar panel.

The DeepBlue 4.0 Pro has a black frame and a black backsheet, which give it a sleek appearance and enhances its durability. It also has a low temperature coefficient, which means that it performs well even in hot weather conditions, like the hot summer we have just had in the UK this year.


This is a standard monofacial panel with a power rating of 385W and an efficiency of 20%. It uses P-Type PERC cells, which have a passivated rear surface that enhances the light absorption and reduces the recombination losses. Recombination is a process where electrons and holes (the opposite of electrons) recombine and cancel each other out, reducing the electric current. A passivated rear surface is a thin layer of material that prevents recombination by reflecting the electrons back to the front surface of the solar panel.

The JAM60S20 also has a half-cut cell design and a black frame for aesthetic appeal. It is suitable for both residential and commercial rooftops, as it has a compact size and a high power density.


This is a bifacial panel with a power rating of up to 550W and an efficiency of up to 20.5%. It uses P-Type PERC cells with transparent backsheets that allow the light to pass through and reflect from the ground or roof surface. This increases the power output by up to 35% compared to monofacial panels. A bifacial panel is a panel that can generate electricity from both sides, while a monofacial panel can only generate electricity from one side of the solar panel.

The JAM72S30 also has a half-cut cell design and a silver frame for durability. It is ideal for large-scale projects, such as solar farms or commercial buildings, as it has a high power output and a low levelized cost of energy (LCOE). LCOE is a measure of the average cost of producing electricity from a solar panel over its lifetime.


If you are interested in installing JA Solar panels on your roof, you can contact me today for a free quote and consultation. I hope you enjoyed this blog post and learned something new about JA Solar panels. If you did, please leave a comment below and share this post with your friends and family. Thank you for reading and have a great day!

Frequently Asked Questions About JA Solar Panels

Is JA Solar a good brand?

If you are looking for cheap but good solar panels, JA Solar is a great choice. Their panels cost much less per watt than most competitors, but they still have higher efficiency and performance than other low-cost brands. You get a lot of value for your money with JA Solar panels.

Is JA Solar a good solar panel?

JA Solar panels have very good efficiency ratings of over 20%, which is the average for all their modules. They are among the most efficient panels you can find, because of their high-quality design.

Which is better Jinko or JA Solar?

Both JA Solar and Jinko are well-known and respected in the solar panel market. Our solar panel ranking shows that we think highly of both brands, but we prefer JA Solar panels because they offer more value for the same quality.

Is JA Solar panels Tier 1?

Yes, Tier 1 Solar panel brands, such as JA Solar, Longi, Trinasolar, Jinko Solar and QCell, have some common characteristics: They’ve been making solar panels for at least five years and they’re publicly traded companies with a solid financial position.

Is JA Solar a Chinese company?

Yes, JA Solar Holdings, is based in China, and is a solar company that started in Shanghai’s Yangpu district. They make and sell solar products such as solar cells and solar PV modules.

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