These mirrors at CSIRO in Newcastle can focus the sun to create superheated steam. That is the same pressure and temperature of steam that a coal or nuclear fired power plant creates. Amazing. Picture credit: CSIRO

Further evidence emerged this week from the CSIRO of the value of the embattled Australian Renewable Energy Agency (ARENA) to the nation. ARENA, you may well recall, is at the centre of the current government’s ideological campaign against renewable energy with its very existence now in doubt through savage proposed budget cuts.

The breakthrough was the successful heating of steam to a supercritical temperature using solar energy. Supercritical steam is very high temperature and high pressure steam, that is needed to run electricity generating turbines efficiently. Essentially this means that we can now use the sun to drive conventional electricity turbines, like those found in a coal fired or even nuclear power station. This development has the potential to be a “gamechanger” in the way we generate electricity, according to the CSIRO. [Read more…]