Self-cleaning coating improves solar panels
March 10, 2026 – Researchers of the Hariot Watt University (Edinburgh) have developed a coating that keeps solar panels clean automatically. Dirt and dust usually reduce solar output, especially in dry or dusty regions. The new layer prevents water and debris from sticking, allowing rain or condensation to wash the surface. This increases energy yield and reduces maintenance needs. The coating is durable and suitable for different environments. Lower cleaning requirements can reduce operational costs. According to the researchers, the technology may contribute to more efficient large-scale solar energy systems.
