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

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 […]