Trying to get your head around renewable energy and how it might work?
Zero Emissions, a Melbourne based research group reports that Australia can produce all its energy from clean ( ie not including nuclear or wood chip burrning) renewable energy by 2020 http://beyondzeroemissions.org/zero-carbon-australia-2020
Geothermal power is a promising new technology for long term renewable energy. However many sites are located at great distance from power needs. Scientists have recently discovered that the La Trobe Valley in Victoria is an ideal site. Listen to the ABC Science Show report on this from May 2010 or read the transcipt http://www.abc.net.au/rn/scienceshow/stories/2010/2883582.htm