TOPCon technology: New solar cells for greater efficiency.

Functionality

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The term TOPCon stands for Tunnel Oxide Passivated Contact and describes the specific structure of a solar cell. The novel cell architecture was presented by researchers at the Fraunhofer Institute for Solar Energy Systems in Freiburg in  , but it still took a few years until the first TOPCon modules came onto the market.    

The basic idea of &#;&#;the TOPCon concept is that the metal of the connection contacts does not come into contact with the silicon layer. This prevents charge carrier recombination, which typically causes performance losses at the rear of the cell.  

To prevent recombination, a very thin layer of silicon oxide (just a few nanometers) is applied to the surface of the solar cell. This SiO&#; layer passivates the surface, i.e. it blocks the passage of a type of charge carrier. However, the layer is so thin that the current can &#;tunnel through&#; quantum mechanically. In addition to this &#;tunnel layer&#;, another layer of highly doped silicon is inserted, which improves electrical conductivity and reduces transmission losses.

With the rise of renewable energy, advancements in solar technology are resulting in efficient and budget-friendly solar panels. One of the rising trends in solar panels is the TOPCon Series.

Navitas Solar&#;s TOPCon series is manufactured to meet varying needs. The commercial benefits of solar contribute to the growing demand for this solar panel. Many TOPCon solar panel advantages are giving the best ROI. We will discuss those advantages in this blog. Please read it to learn how you can save some money in addition to the free electricity with solar panels!

What is our TOPCon Series Solar Panel?

TOPCon stands for Tunnel Oxide Passivated Contact. Traditional solar panels were designed per the conventional solar panel standards. While the monocrystalline solar panels are efficient, they cannot convert enough sunlight into electricity. Therefore, to tackle this, researchers added a passivated layer below the solar panel to increase exposure and efficiency.

The process is a development of traditional solar panel manufacturing; thus, adopting this technology becomes easy. Therefore, the market for TOPCon solar panels is valued at $8.63 Billion and is expected to grow at a CAGR of 19.11% till (source).

Our development team has worked hard to create our N-type TOPCon bifacial solar panel for better budget performance. With this advanced solar technology, you can access efficient solar panels with many benefits. Now, let us discuss in detail how these solar panels are more beneficial than conventional ones.

Benefits of TOPCon Series by Navitas Solar

1. Increased Solar Panel Efficiency

Efficiency means the amount of sunlight a solar panel can convert into electricity. Traditional solar panels have a maximum efficiency of 20% in the monocrystalline solar panels. Due to the low conversion of sunlight, a new type of panel was designed to increase production. Therefore, adding the new passivated layer increases the exposure rate on the solar cell, resulting in a boost in efficiency. The maximum efficiency boost noted for TOPCon solar panels is 26.4% (source). However, on average, you can expect a 22% boost in solar panel efficiency.

2. Improved Low-light Performance

In our TOPCon series solar panel, the passivated layer reflects the sunlight that passes the solar cell, increasing exposure. The process of reflecting the energy is beneficial in low light time. When sunlight is scarce, the reflected energy can cover up the drop in conversion rate. Therefore, the TOPCon solar panel is perfect for shady and low sunlight exposure areas.

3. Lower Cost of Solar Panel

There are two ways to understand the cost factor of the solar panel. First, the production cost. The TOPCon series solar panels are a progression of the traditional solar panels. Therefore, one can produce the TOPCon solar panels with the same plant without a significant increase in production costs.

On the other hand, you need to consider the overall cost of solar panels, aka the Levelized Cost of Energy (LCOE). It is determined by the lifetime cost of solar panels proportional to the energy yield of the panels. In simple terms, it is the cost of a solar panel per unit of electricity it will make in a lifetime. With the increased efficiency, it will produce more electricity. Therefore, the overall LCOE will be low.

4. Adapts in High Temperature

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The TOPCon Series has a lower temperature coefficient thanks to the passivated layer. Therefore, the solar panel does not get overheated easily. This results in panels that are resilient to high temperatures. Commercial projects with high sunlight exposure are often at risk of overheating. Thus, with the TOPCon Series, you are assured that your panels will work in high temperatures.

5. Better Power Output

The N-type TOPCon series solar panels are known for lower energy loss. The n-type solar panel structure works on negative energy. Therefore, it loses less energy in conversion and transmission. Additionally, the passivated layer of TOPCon increases the efficiency, resulting in a boost in solar panel power output.

6. Reduced Degradation Rate

Usually, the extra passivated layer is known for reflecting the light. But, there is one more crucial solar panel advantage it provides: a lower degradation rate.

The oxidized layer added in TOPCon absorbs moisture and counters temperature fluctuation. Therefore, the solar panel will degrade slowly, and the efficiency drop over the years will also be lower. The TOPCon solar panels are known to last for 25-30 years. It increases the overall performance and cost-benefit of the solar panel.

7. Enhanced Performance of Bifacial Solar Panel

The TOPCon solar panels have an additional refective layer for the solar panel. So, imagine the performance of bifacial solar panels with such advanced solar technology. The efficiency of this type of solar panel is the highest. It is advantageous in commercial projects and areas with low sunlight. When the weather or the vegetation near your panel becomes trouble for your overall production, the bifacial solar panels with TOPCon technology work like magic. It reflected more sunlight, resulting in more light conversion.

If you want to invest in benefiting solar panels, check out our n-type TOPCon series solar panels. Contact us for the best prices and installation service!

Conclusion

Navitas Solar has a dedicated series of TOPCon solar panels. The TOPCon series solar panels are based on the advanced solar technology of addicting an oxidized layer below the solar cell. The passivated layers reflect the sunlight on the solar cells to boost sunlight exposure to the cell. The solar panel advantages of this process include a boost in efficiency and performance output, lower degradation and cost, and better temperature resistance. Therefore, the demand for TOPCon solar panels has increased in the past few years. If you want to know how our TOPCon series solar panel can benefit you, contact us now!

FAQ

1. What&#;s the difference between TOPCon solar panels and traditional solar panels?

The difference between TOPCon and traditional or regular solar panels lies in the extra passivated layer beneath the solar cells. It refects the sunlight and absorbs moisture and temperature fuctuation, decreasing the degradation rate and increasing the effciency.

2. Are TOPCon series solar panels useful in commercial projects?

Yes! The TOPCon series solar panel has better effciency and a lower degradation rate and works well in high temperatures. So, they are perfect for commercial projects and have good ROI.

3. How long does TOPCon solar panels last?

The TOPCon solar panel has a low degradation rate. Therefore, they last up to 25-30 years with a relatively lower drop in efficiency over the years.

The company is the world’s best Topcon mono solar panel supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.