Hydro Tasmania is Australia’s leading renewable energy business and generates hydropower and wind power in Tasmania and trade electricity and energy-related environmental products (such as Renewable Energy Certificates) in the Australian market.  Hydro Tasmania is the largest water manager in Australia.

Hydro also owns and operates an advance hybrid power system on King Island, which uses wind, solar, diesel and innovative energy enabling technologies to maximise renewable energy use. It's a good example of innovative use of combined renewable technologies.