Catagunya Power Station
The Catagunya Power Station is a run-of-the-river hydroelectric power station located in the Central Highlands region of Tasmania, Australia. The power station is situated on the Lower River Derwent catchment and is owned and operated by Hydro Tasmania.
Technical details
Part of the [River River Derwent (Tasmania)|Derwent (Tasmania)|Derwent] scheme that comprises eleven hydroelectric power stations, the Catagunya Power Station is the seventh power station in the scheme and the third power station in the lower run-of-river system. The power station is located above ground, below Lake Catagunya, a small storage created by Catagunya Dam on the Derwent River. Water from the Derwent from Wayatinah Power Station and spill from Wayatinah Dam flows into Lake Catagunya. Water in the lake is diverted by a flume at the dam to the Radial Gates. It then descends through two steel penstocks to the Catagunya Power Station..The power station was commissioned in 1962 by the Hydro Electric Corporation (TAS) and the station has two Boving Francis-type turbines, with a combined generating capacity of of electricity. Within the station building, each turbine has a semi-embedded spiral casing, and water flow is controlled via twin radial gates installed at the entrance to each penstock and designed to cut off full flow. No inlet valves are installed in the station. The station output, estimated to be annually, is fed to TasNetworks' transmission grid via two 11 kV/220 kV ASEA generator transformers to the outdoor switchyard.