#China #Risen Energy #Ningbo #Solar Modules #HJT Technology

Revolutionizing Solar Energy with Heterojunction Technology

In an era defined by sustainable technology, the photovoltaic industry is witnessing a notable shift towards n-type solar technology. The recent findings from Risen Energy Co., Ltd. detail the remarkable performance of Silicon Heterojunction (HJT) modules, which are outpacing traditional Bifacial (BC) modules in power generation.

The performance evaluation conducted at the Ningbo empirical power station showcases a striking 3.85% increase in single-watt power generation from HJT modules compared to BC modules. During optimal conditions, a peak daily power generation gain of 9.97% was recorded, affirming the outstanding capabilities of HJT technology.

Understanding the Testing Environment

The Ningbo power station operates under varied climatic conditions; with an average annual irradiance of 1268 kWh/m² and a standard temperature around 15°C, this site offers a unique setting for solar technology testing. The installation features 210 HJT and 182 BC modules mounted at a 15° tilt on fixed racks, elevated 1.5 meters off the ground for optimal performance.

The comprehensive evaluation system utilized in this project employs millisecond-level IV curve tracking technology, ensuring an error margin of less than 0.5%. This precision contributes significantly to providing reliable data on real-time power generation.

Advantages of Heterojunction Technology

One of the remarkable features of HJT modules is their bifacial ability, allowing for energy capture from both the front and the back sides. This capability results in an impressive 90% backside gain, crucial in high-reflectance environments like snow or sandy areas. This advantage yields an additional 2.4% to 3% in power generation during optimal conditions.

Furthermore, HJT modules exhibit a temperature coefficient of -0.24%/°C, which ensures they maintain efficiency even in extreme heat, outperforming the traditional BC modules suffering more significant declines under similar conditions (which have a coefficient of -0.26%/°C). This aspect is particularly critical for regions experiencing elevated temperatures, leading to a daily increase of 1.2% to 1.8% in energy production.

Power Generation in Varying Lighting Conditions

HJT solar cells are designed to leverage the red light spectrum efficiently, enhancing their output particularly during the early morning and late evening hours. This capability translates to extended power generation durations which can boost productivity, promising greater than expected returns on energy investments over their operational lifespan.

The result is not just an increase in power generation; it sets a new benchmark for photovoltaic technology value. As the industry pivots from a mere focus on cost to a priority on efficiency, Risen's HJT innovations position themselves at the forefront of this transformation, shaking off traditional paradigms in solar energy.

Conclusion

The empirical data emerging from Ningbo is not just a numerical triumph; it symbolizes a revitalization of the solar industry’s ethos towards sustainability and efficiency. With HJT technology, Risen Energy is setting a clear path for the industry’s future, fostering a transformative shift in how solar energy will be harnessed globally. As n-type technology gains traction, it is evident that the transition is about more than efficiency—it's about propelling the world towards a greener future.