> This system can be built anywhere and everywhere without geographic limit= ations. > Essentially anywhere you can put a parking lot, this storage system can b= e deployed. > > The best land for large scale solar installations is desert. > Where exactly can one find a couple of well placed lakes in the desert? My thinking was that it sounds like a good project to have out among the wi= nd farms they are building in the sea all around the UK coast. You already = have a large number of high towers with the turbines on top, so why not hav= e these interspersed with concrete batteries to absorb off peak generation = .... At the end of the day absolute efficiency becomes one of the last worries. = If there is a method of storing a significant proportion of the off peak ov= er generation and it can be stored to help peak time consumption then let's= build it. Using hard core waste to make the blocks only adds to the useful= utility of it. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .