A 10.79% Power Generation Gap: Insights into the Adaptability Challenges of BC Technology Route in Ground-Mounted Power Stations from Northern Shaanxi Desert Field Tests

A recent field study conducted in the desert environment of northern Shaanxi Province has provided valuable insights into the performance differences between two advanced photovoltaic (PV) module technologies: Jinko N-type TOPCon bifacial modules and the latest generation N-type BC bifacial modules. This project, newly connected to the grid, is situated on terrain characterized by open spaces and large, irregular sand dune formations, presenting a challenging environment for PV power generation.

The primary objective of the study was to evaluate the practical application performance of these two module types under harsh desert conditions. The desert environment poses unique challenges such as high temperature fluctuations, dust accumulation, and uneven terrain, all of which can impact the efficiency and reliability of PV modules. By deploying both module types simultaneously within the same power station, the study ensured a controlled comparison of their real-world power generation capabilities.

Data collected from the PV power station revealed a significant power generation gap of 10.79% favoring the TOPCon modules over the BC modules. This disparity highlights adaptability challenges faced by the BC technology route when deployed in ground-mounted power stations within desert environments. Factors contributing to this gap may include differences in module design, temperature coefficients, bifaciality performance, and resilience to environmental stressors such as sand abrasion and soiling.

The findings underscore the importance of site-specific technology selection for PV installations. While BC technology may offer advantages in certain conditions, its current iteration appears less suited for the demanding conditions of northern Shaanxi's desert terrain. Conversely, TOPCon modules demonstrated superior adaptability and power generation efficiency, making them a more reliable choice for similar environments.

These insights have broader implications for the solar industry, particularly as PV deployments expand into increasingly diverse and challenging geographic locations. Understanding the interaction between module technology and environmental factors is crucial for optimizing energy yield and ensuring the economic viability of solar projects. Future research and development efforts may focus on enhancing the robustness of BC modules or tailoring their design to better withstand desert conditions.

In conclusion, the northern Shaanxi desert field tests provide a compelling case study on the performance divergence between TOPCon and BC bifacial modules. The observed 10.79% power generation gap serves as a critical benchmark for stakeholders aiming to maximize efficiency in ground-mounted PV power stations in harsh environments. These results advocate for careful technology evaluation and adaptation strategies to harness the full potential of solar energy in desert regions.