The company running it argues Snowy 2.0 is the nation's "most critical energy project" and it will provide more than half of Australia's total energy storage needs by 2050.Snowy Hydro chief executive Dennis Barnes recently told an Australian Energy Council conference in Sydney that, although Snowy 2.0 is "bloody hard to build", it's "pretty good value" for money and will deliver "generational benefits."Commissioned under Malcolm Turnbull's coalition government in 2017, Snowy 2.0 expands on the original Snowy Mountains hydroelectric complex "Snowy 2.0 all by itself will be 80 per cent of all the energy storage in Australia," when it comes online, he said