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Soiling on Solar Farms: When Should We Clean the Panels?


IEEE Student Branch DU is proud to organize a webinar on “Soiling on Solar Farms: When Should We Clean the Panels?”, conducted by M. Ryyan Khan, Ph.D. The webinar will be conducted on Tuesday, 02 March 2021, 7:00 pm BST – hosted in Zoom as well as Facebook Live.
Time: 7pm (BST)
Date: March 2 (Tuesday), 2021
Zoom Link:
Zoom Meeting ID: 610 2433 0800 (No password needed)
Researchers have placed significant efforts towards improving solar cell efficiencies, module performance, and optimizing the overall solar farm designs. At the end, the goal is not to maximize the output, but to lower the cost of produced electricity. Another way of improving the economics is through advancement in maintenance and reliability. This talk will discuss one of these factors, namely soiling. Dust accumulation (soiling) will degrade the solar panel output—but cleaning also requires money and will lower our net revenue. The goal should be to optimize the cleaning interval to maximize revenue. We will see how numerical and analytical model can predict cleaning cycles, losses, and revenues to help investors and solar farm operators to get insights on the best possible scenario after optimal cleaning. We will also see how experiment assisted numerical models can help establish the underlying physics and develop better predictions. As it turns out, for most locations across the globe, we will have 2-5% loss in revenue due to soiling even after optimized cleaning intervals.

Speaker Profile

M. Ryyan Khan, Ph.D.

Assistant Professor, East West University


M. Ryyan Khan, Ph.D. completed his BSc from EEE, BUET in 2009. He served as a lecturer in the same department for one semester. After completing his PhD from Purdue University, USA in 2016, he worked as a post-doctoral research associate in Alam CEED group (Purdue). He has been working in East West University as an Assistant Professor since 2018. Dr. Khan’s recent work and interest include bifacial solar farm design though numerical model and experiments, solar panel soiling analysis, agro-photovoltaics, floating-photovoltaics, electronic biosensors, and paper-based biosensors. His recently highlighted works in various media outlets include: work on bifacial panels in Nature Energy, bifacial tandem thermodynamic limits featured in Purdue news and ScienceDaily, and work on solar panel soiling featured in pv-magazine.