In the heart of Malaysia, researchers are uncovering critical insights into the long-term performance of photovoltaic (PV) systems in tropical climates, information that could significantly impact the global energy sector. Putri Nor Liyana Mohamad Radzi, a researcher at the Power Electronics and Renewable Energy Research Laboratory (PEARL) at Universiti Malaya, has led a comprehensive study that sheds light on the durability and efficiency of PV materials in high-temperature, high-humidity environments.
The study, published in the journal Scientific Reports (translated to English as “Scientific Reports”), focuses on a grid-connected PV system maintained by PEARL. This system comprises two types of PV panels: Poly-Crystalline (Array 1) and Mono-Crystalline silicon (Array 2), with a combined capacity of 3.575 kWp. Over a period of 36 months, from January 2020 to December 2022, the research team monitored and analyzed eleven performance parameters, adhering to the IEC 61724 guidelines.
The findings reveal that Array 1 produced an average AC energy output of 3881.67 kWh with a performance ratio of 86.74%, while Array 2 generated 1120.48 kWh with a performance ratio of 56.30%. “These results highlight the significant differences in performance between the two types of PV panels in tropical climates,” Radzi explains. “Understanding these differences is crucial for optimizing system performance and longevity.”
One of the most compelling aspects of the study is the use of Modified Akima cubic Hermite (MAKIMA) methods to forecast the degradation rates of each PV technology for 2023. The analysis predicted degradation rates of 10.58% for Array 1 and 11.99% for Array 2. “By predicting degradation rates, we can better anticipate the long-term performance of PV systems and make informed decisions about material selection and maintenance strategies,” Radzi adds.
The implications of this research are far-reaching for the energy sector. As the world shifts towards renewable energy, the adoption of PV systems is growing rapidly. Integrating these systems into buildings not only enhances sustainability but also reduces energy costs and promotes environmental preservation. However, ensuring the long-term reliability of PV systems is essential for their widespread adoption.
Radzi’s study provides valuable insights into the durability and efficiency of PV materials in tropical climates, contributing to optimized system performance and material selection. “This research is a stepping stone towards more efficient and reliable PV systems,” Radzi concludes. “It offers a foundation for future developments in the field, particularly in regions with similar climatic conditions.”
As the energy sector continues to evolve, studies like this one will play a pivotal role in shaping the future of renewable energy. By understanding the performance and degradation of PV systems in tropical climates, researchers and industry professionals can work together to develop more robust and efficient technologies, ultimately driving the global shift towards a more sustainable energy future.