Tasmania’s Mercury newspaper created a special publication of 100 years of Hydro Tasmania – I think the publication date was October 2014.
Roger Lupton for the University of Tasmania summarises brief history of electricity and Hydro in Tasmania at this site.
Hydro Tasmania’s Cultural Heritage Program Newsletter records: “Of all the industries contributing to Tasmania’s social and economic development during the course of the 20th century, none stands out more than the Hydro. In terms of labour force statistics alone the role played by Hydro projects in regional employment cannot be underestimated. At its peak of 5200 staff, approximately 1 in 25 Tasmanians worked for the organisation.”