Hi Steve, Yes this is a different approach to cleaning solar panels and would of course be much slower and more costly than cleaning with wfp system, but its all about offering choices to your clients. There are many features and benefits to this method, using Beyond-Kleen to clean solar panels will leave behind an ultra hydrophobic protective coating so when it rains the water will bead off the surface taking away soils in the droplets or to explain it another way, Beyond-Kleen cleaner and protectant technology will deeply clean any hard surface and as an additional bonus it will provide long lasting protection by virtually duplicating the self cleaning hydrophobic properties of the lotus leaf commonly known as the lotus effect. so for owners of large solar panel farms this approach offers many benefits as it means the panels don't need to be cleaned as often and include the increased efficiency of power production as the panels will always be much cleaner, there are other features and benefits which I wont go into here, but im sure you get the picture, again its just another method that gives the owner a choice and when the features and benefits are explained its then up to them to make an informed decision when all the facts are provided. this concept is being very well received in the USA and many believe it works out more cost effective in the longterm because of the many features and benefits.