The Tasmanian Hydro Electric Commission employs 1150 migrant workers among its construction force of 2000 men. Since WWII, the Commission has engaged some 5000 migrant workers to help in a programme of power development in the Central Tasmanian Plateau and Derwent River System. This programme has increased generating capacity from 221000 to nearly 700000 hp. in nine stations. Workmen installing a turbine in the new Wayatinah "A" power house