James Hyndes Gillies (11 November 1861 – 26 September 1942) was the pioneer of hydro-electricity in Tasmania, Australia and a metallurgist who patented a method for the electrolytic extraction of zinc. He was granted approval in 1909 by the Tasmanian parliament to construct and operate the Great Lake Scheme (which became known as Waddamana Power Station) in the Central Highlands of Tasmania, which served the state until 1960.[1]