Advanced Cleaning methods help a lot to increase the Solar Power generation. It also shows the difference between Dry & Wet Cleaning. What do you think which one is better- dry or wet cleaning? Let’s look on Firstgreen’s Solar article.

Published by firstgreen on

Growing energy demands, rising concerns over climate change, and volatile oil prices in the last decade have led to the need to produce more electricity from renewables. Due to the abundance of solar resource and advancements in the efficiency of Photovoltaic (PV) modules, solar energy is fast emerging as a cost-effective source for power generation, with grid parity being achieved in many solar resource-rich countries.

Solar panel cleaning, not standardized though, involves the utilization of various techniques including manual, semi-automated and automated options to remove sediments accumulated on panels. Some plants employ cleaning brushes apparatus driven by tractors or different vehicles, while others prefer to use cleaning robots to clean the panels.

At a high level, solar panel cleaning technologies are bifurcated into two  subgroups;  Dry Cleaning and Wet Cleaning.

As the name implies, Wet Cleaning involves water and relevant chemicals in removing sediments from the solar panel and is more feasible for regions that have abundant water reserves and experience heavy rainfalls. However, based on the PI Photovoltaic-Institute Berlin AG, solar panel cleaning for large power plants involving water is rarely considered to be an optimal solution.

Dry Cleaning is a solution that does not involve water, but the use of motorized brushes or pressurized air to clean the panels.

Overall, Dry Cleaning is most suitable option for Desert like dry environments. But to conserve more energy & water & as well as to reduce Operational cost, Dry Cleaning is much more better option than Wet Cleaning. Here is a brief view or summary of comparison between Dry & Wet Cleaning:

                      A table of comparison between Dry & Wet Cleaning

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