Clean Power Professionals Group
This special interest group is for professionals to connect and discuss all types of carbon-free power alternatives, including nuclear, renewable, tidal and more.
Electrostatic dust removal using adsorbed moisture–assisted charge induction for sustainable operation of solar panels.
- Mar 21, 2022 1:12 pm GMT
Dust accumulation on solar panels is a major challenge, as it blocks a large portion of sunlight. Solar panels are
therefore cleaned regularly using large quantities of pure water. Consumption of water for cleaning, especially in
deserts, poses a substantial sustainability challenge. Here, we present a waterless approach for dust removal from
solar panels using electrostatic induction. We find that dust particles, despite primarily consisting of insulating
silica, can be electrostatically repelled from electrodes due to charge induction assisted by adsorbed moisture. We
experimentally determine dust particle charge by conducting Stokes experiments under an electrostatic field. By
considering electrostatic, van der Waals, and gravitational forces, we define the threshold electric potential for
particle removal. We also demonstrate dust removal over a broad range of relative humidity, making our approach
widely applicable. Last, we develop a lab-scale prototype and demonstrate up to 95% recovery of lost power output using our approach.
Get Published - Build a Following
The Energy Central Power Industry Network® is based on one core idea - power industry professionals helping each other and advancing the industry by sharing and learning from each other.
If you have an experience or insight to share or have learned something from a conference or seminar, your peers and colleagues on Energy Central want to hear about it. It's also easy to share a link to an article you've liked or an industry resource that you think would be helpful.
Sign in to Participate