Ok, it may not be worth much, but here is my two penneth worth:
Having contacted personally in the past, 3 major manufacturers of solar panels, Sony, Trina and Sharp, none recommend any detergents of any sort be used on solar panels for cleaning.
I'd be happy to use the product though and charge accordingly. How big is the solar farm? Is it a UK based owner or do they have sites abroad? What is their experience with this product. Do you know any of the answers to these questions mate?
