Oh that is awesome! There is a lot of information available about the lithium cells, and the greenies that think there electric cars are so great and green haven't done any research on how those batteries are actually made. The idea of off the grid is absolutely great though, most people don't realize that the power industry is the most powerful and profitable industry in the world today, and is also why the big cities in places like the US won't let you unplug from the grid. Good luck with your system building! You guys are up high and close to the coast, wind generation might also be a good source of energy production, cheep to build too.