Snowy Hydro Limited previously known as the Snowy Mountains Hydro-electric Authority is a corporation in Australia jointly owned by the Commonwealth (13%) New South Wales (58%) and Victorian (29%) Governments. The company manages the Snowy Mountains Scheme which generates on average around 4500 gigawatt hours of clean renewable energy each year which is around 67% of all renewable energy in the mainland National Electricity Market in 2009.