Daqing Demonstration Base in Heilongjiang Province, China Releases 4 Years of Data! TOPCon Module Power Generation Advantage Expands Annually

The 'Demonstration Results Report of the National Photovoltaic and Energy Storage Demonstration Project Platform (Daqing Base) (2025 Edition)' has been officially released. Four years of outdoor demonstration data have shown, as authoritative verification results, that N-type TOPCon modules possess a comprehensive power generation performance advantage over BC modules.

N-type TOPCon modules are equipped with excellent bifacial power generation capabilities, a superior temperature coefficient, and stable long-term power generation capacity, demonstrating outstanding results in evaluations comparing multiple technological routes. This re-confirms the high business value and broad applicability of N-type TOPCon technology, serving as an important reference indicator for equipment selection in solar power plants worldwide.

The National Photovoltaic and Energy Storage Demonstration Project Platform (Daqing Base) is located in a cold region of Heilongjiang Province, China, with an average annual temperature of only 5.5℃. On the other hand, it is blessed with favorable solar conditions, with the main irradiance stably ranging between 900-1000W/㎡. This unique environment of low temperature and high irradiance makes it an ideal natural laboratory for verifying the power generation efficiency, operational stability, and environmental durability of solar modules.

The first phase of the demonstration project at this base commenced in January 2022, involving 12 leading manufacturers and 29 types of solar module products, with a total installed capacity of 24.25MW. Through continuous on-site monitoring over four years, objective and fair data has been accumulated, eliminating the limitations of laboratory environments, and thus possessing high reference value for actual power plant design and operation.

This evaluation focused on comparing the power generation performance of N-type TOPCon modules and N-type BC modules, which are currently mainstream in the market, over their entire lifecycle. According to the comprehensive four-year data, TOPCon modules have achieved an average increase in power generation revenue per unit output of 2.27% compared to BC modules.

What is even more noteworthy is that this advantage is expanding year by year. The increase in power generation revenue rose from 1.39% in 2022 to 2.68% in 2023, and further expanded to 3.49% by 2025. The four consecutive years of demonstration data indicate that TOPCon modules can maintain stable performance even under long-term operation while continuously exhibiting high power generation capabilities, thereby supporting increased long-term revenue for power plants.

Furthermore, the report points out that even among products using the same TOPCon technology, there can be a difference of approximately 2% in power generation performance between top-brand products and general products. This signifies that manufacturing technology, technical accumulation, and quality control capabilities significantly influence the final revenue of a power plant.

Jinko Solar, one of the earliest companies globally to achieve large-scale mass production of N-type TOPCon modules, leverages its mature mass production technology, continuous technological innovation, and strict quality control system to position its Tiger Neo series at the forefront of the TOPCon market. The Tiger Neo series, combining high reliability and power generation performance, has become a strong choice for photovoltaic projects.

The four-year demonstration results at the Daqing Base have put an end to technical debates with vast operational data, reaffirming that TOPCon possesses comprehensive competitiveness as the mainstream N-type technology.

Moving forward, Jinko Solar will continue to track and disseminate monitoring data from various authoritative demonstration platforms, and driven by technological innovation, will strive for further improvements in module performance. We will provide customers with photovoltaic products and integrated solutions that achieve higher power generation, greater reliability, and improved investment returns.