China takes over the market solar panels for the next 5 years. It will provide maximum efficiency in biface technology, allowing a shock stronger than that of the 5,000-year-old material that would save solar panels. The sustainable energy sector is undergoing constant evolution and for this reason new technologies surrounding solar panels continue to appear. In this way, new trends have been added to the traditional offering, such as the case of bifacial panels.
A bifacial photovoltaic panel is characterized by its sensitivity to light on both sides, unlike what happens with monofacial solar panels, whose rear part consists of opaque materials and therefore does not absorb solar radiation. In the case of a two-sided plate, the rear part consists of a transparent plate or double tempered glass, so that both sides receive the sun’s rays for energy production.
As for the cells, as with monofacial panels, they are monocrystalline and polycrystalline. Finally, these types of modules are usually available in various designs, with or without a frame. As we explained earlier, a bifacial panel is a type of photovoltaic panel that can capture energy on both sides thanks to the transport plate that covers the rear part.
China is taking control of the solar panel market
TOPCon will the leading photovoltaic technology in the next five years. The combination of high bifaciality and high performance at low irradiation makes the TOPCon modules offer a power gain of 2-3% per watt compared to BC modules under real operating conditions.
A recent field study conducted by the Chinese manufacturer Trina Solar leads to modules TOPCon to the highest. Delivers greater power generation by an average of 3.15% per watt compared to back-contact models (“return contact” or BC in English), with a relative gain of up to 3.4% in one month. This shows that greater energy generation takes place in the modules TOPConin addition to the added value they will deliver for customers in the coming years.
The test was carried out in the period between July 16 and September 10, 2024 Changzhou, China. Trina Solar a comparison was made between the performance of the modules Vertex X Double-sided double glazing of 600 W, based on advanced n-type technology, i-TOPConcon two-sided double glazing modules 620W Tunnel Back Contact (TBC) from another manufacturer.
To ensure accuracy, the test site is designed to simulate normal installation conditions as closely as possible. It consisted of a cement floor with a reflectivity of approximately 30%, with 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 and back rows and energy production data was collected using an IV tracker.
Solar panels will be under China’s scrutiny in the coming years
The modules TOPCon They showed superior performance in low light conditions, such as in the morning and late afternoon hours. From 7 to 8 o’clock in the morning the energy production per watt of the modules TOPCon It was 6.9% higher than that of the TBC modules, and from 5 to 7 in the afternoon the relative gain registered a change from 8.3% to 8.4%. This is consistent with previous field tests, which show this TOPCon performs about 5% better than BC under low conditions.
In five years, the company projects perovskite-silicon tandem solar cells based on TOPCon n-type will become the benchmark for high-quality development in the photovoltaic industry. With this prediction China takes over the market solar panels with the promise of maximum efficiency in biface technology. A ‘dominion’ that could be threatened by the tile that generates free energy at home.