Poly and mono crystal both are far better. Ploy are cheeper and larger ( lower efficiency). Mono are the higher efficiency panels and cost a little more than poly panels.
The life is rated in 90%, 80% and most come in 20 or 25 year ratings.
As for where panels are made, well there are panels from all over the world. Some are way better than others. If you would like specifics for this project, Mnfish can let you know the panels he is using. As for the panels I installed for George, they are still going strong running the aerator. The setup we used is different than MN's, but the theory is the same.
Brian
The one thing is the one thing A dry fly catches no fish Try not to be THAT 10%
