The Australian centre gets an incredible amount of sunlight. There's very little that can be done without the first step. Remember computers became a prospect (distant) when they invented the transistor. Every program is a series of small steps. Step left 0 step right 1-(or vice versa) at least until we work out how to go organic (it's not far off). Who knows, with the amount of sunlight Australia gets, in time energy is likely to become an export. We'll just have to look out for real estate agents. "Want to buy a block of land in the desert?- Get it while it's hot."