Trinasolar is committed to this TOPCon technology in the photovoltaic sector. These modules can generate up to 3.4% more electricity monthly, compared to back-contact BCs.
A recent field study by the company shows that the modules TOPCon provide greater power generation by an average of 3.15% per watt compared to back contact (BC) modules, with a relative gain of up to 3.4% in one month. This analysis demonstrates the superior energy generation of the modules TOPCon and the added value they will deliver for customers in the coming years
TopCon modules
The test was conducted between July 16 and September 10, 2024 in Changzhou, China. trinasolar compared the performance of the modules Vertex N 600W double-sided double glazing, based on advanced n-type technology, i-TOPConwith 620W tunnel back contact (TBC) double glass bifacial modules from another manufacturer.
To ensure accuracy, the test location is designed to simulate in detail normal installation conditions. It contained a cement floor with a reflectivity of approximately 30%, with the modules mounted on fixed mounting structures with a slope angle of 23° and installed 0.5 meters above the ground. There was no shade in the front or back rows and the power generation data was collected using an IV tracker.
Loose TOPCon modules showed superior performance in low light, such as in the morning and late afternoon. From 7 to 8 o’clock in the morning, the energy generation is per watt of the modules TOPCon It was 6.9% higher than that of the TBC modules, and from 5:00 PM to 7:00 PM the relative gain was 8.3% to 8.4%. This is consistent with previous field tests that have shown this TOPCon outperforms BC by about 5% under low irradiation conditions.
The greatest two-sidedness of TOPCon It also contributes to their higher energy generation: even in the middle of the day, when sunlight is most intense, TOPCon modules offer a 2.6% advantage in energy generation over BC alternatives.
The combination of high bifaciality and high performance at low irradiation makes modules possible TOPCon offer a power generation gain of between 2% and 3% per watt compared to BC modules under real operating conditions.
These findings be consistent with the results from the National Photovoltaics and Energy Storage Experimentation Platform and the National Quality Inspection Center of Solar Photovoltaic Products, both located in China.
The test results provide strong evidence for this TOPCon will the dominant photovoltaic technology in the next five yearswhile more efficiencies and cost savings are on the way. Trinasolar expects cell efficiency to increase by a further 1% during this period.
And that the power of the TOPCon modules will grow by more than 30 W in the same period. The company expects this in five years perovskite-silicon tandem solar cells based on TOPCon n-type will become the benchmark for high-quality development in the photovoltaic industry.
The industry of The exploitation of photovoltaic solar energy is in full expansion and innovations in the sector are the order of the day. The modules TopCon They are a good example of this.