Solar Panel Cleaning: When to Bother (Spoiler: Almost Never)

Microfiber mop cleaning wet solar panels with visible water droplets on the surface

Most studies put the loss of production due to dust or dirt on the surface of solar panels to be around 1%. If you have a 20,000 kwh/year system and you lose 1% of your production because your panels are dirty, you would lose around 200kwh/year. If each kwh costs you $0.14 then you would […]