Solar Thermal installer, NABCEP Solar Thermal certified (emeritus). Radiant Panel Association certified designer and installer. I have a design for a very practical large (250-400G), lightweight solar thermal storage tank, constructed entirely with plastic/fiberglass. The tank design lends itself well to automated manufacturing techniques, and is light and easy enough for a single person to move around, and install, without any special equipment/lifts. I've built six of them so far, and they are extremely rugged and efficient. I'm am looking for investors/partners to bring it to market. I'm a progressive science geek, futurist, and happily married father of three. Other interests: net-zero building, green building techniques, carpentry, low energy solar thermal/PV powered greenhouses, organic gardening and self sufficient living techniques, electric cars, and mountain bikes.