This was once the preferred method of cleaning for all solar panels. The hand cleaning method utilises multiple workers using water fed poles with solar brush heads and deionised water. Specially modified off-road vehicles, quads, trailers and water tanks are used which allows us to get to some of the harder to reach, challenging or sensitive areas. This is the only method we use for roof mounted systems on barns or buildings.
As many solar farms are built in unique environments we are happy to tailor a clean to the specific site utilising an amalgamation of methods.