Australian: HARNESSING just 10 per cent of the wave energy along Australia’s southern coast could provide half the nation’s electricity needs, according to a new study carried out by CSIRO scientists. Oceanographers Mark Hemel and David Griffin modelled wave energy from Geraldton in Western Australia, across the Bight to the southern tip of Tasmania to assess the amount of energy available and judge the feasibility of setting up a clean energy industry. "The Southern Ocean is exposed to …