More than 20% of Australia's power now comes from sustainable energy sources, according to the Australian Business Council for Sustainable Energy (BCSE). Yet while wind power is the fastest growing renewable energy source, with capacity increasing at a rate of 130% a year since 1999, it accounts for just 1% of Australia's sustainable power sources. "The key strategic issue is one of managing the nation's pathway to low and zero emissions future power," says BCSE's Andrew Stock. He refers to 2003 as a "watershed year in strategic policy terms for Australia's energy industry" with an energy review process which will "set the path for Australia's emissions for decades to come." While sustainable energy sources in total account for a fifth of the county's energy supply, the bulk of this comes from non-renewable sources, such as gas-fired power stations and combined heat and power plant. Greater use of renewables is needed, says Stock.