Bastyan Dam
Location of the Bastyan Dam in Tasmania
Country	Australia
Location	Western Tasmania
Coordinates	41°43′48″S 145°31′48″E / 41.73000°S 145.53000°E / -41.73000; 145.53000
Purpose	Power
Status	Operational
Construction began	1974 (1974)
Opening date	1983 (1983)
Owner(s)	Hydro Tasmania
Dam and spillways
Type of dam	Embankment dam
Impounds	Pieman River
Height	75 metres (246 ft)
Length	510 metres (1,670 ft)
Dam volume	570 thousand cubic metres (20×10^6 cu ft)
Spillways	1
Spillway type	Uncontrolled
Spillway capacity	2,806 cubic metres per second (99,100 cu ft/s)
Reservoir
Creates	Lake Rosebery
Total capacity	123,520 megalitres (4,362×10^6 cu ft)
Catchment area	1,397 square kilometres (539 sq mi)
Surface area	74.4 hectares (184 acres)
Bastyan Power Station
Coordinates	41°43′48″S 145°31′48″E / 41.73000°S 145.53000°E / -41.73000; 145.53000
Operator(s)	Hydro Tasmania
Commission date	1993 (1993)
Type	Conventional
Hydraulic head	61 metres (200 ft)
Turbines	1 x 81 MW (109,000 hp) Fuji Francis turbine
Installed capacity	81 megawatts (109,000 hp)
Capacity factor	0.85
Annual generation	405 gigawatt-hours (1,460 TJ)
Website hydro.com.au/clean-energy/our-power-stations/pieman
[1]

The Bastyan Power Station is a conventional hydroelectric power station located in Western Tasmania, Australia.

Part of the Pieman River scheme that comprises four hydroelectric power stations, the Bastyan Power Station is the third station in the scheme. The power station is located aboveground at the foot of the rock-filled concrete faced Bastyan Dam which forms Lake Rosebery. Water from the lake is fed to the power station near the centre of the dam wall by a 150-metre (490 ft) single penstock tunnel.^[2]

The power station was commissioned in 1983 by the Hydro Electric Corporation (TAS) and the station has one Fuji Francis turbine, with a generating capacity of 81 megawatts (109,000 hp) of electricity. The station output, estimated to be 405 gigawatt-hours (1,460 TJ) annually,^[1] is fed to TasNetworks' transmission grid via a 13.8 kV/220 kV Fuji generator transformer to the outdoor switchyard.^[3]

The water discharged from the Bastyan Power Station flows into Lake Pieman for use in the Reece Power Station.

• List of power stations in Tasmania

• "Pieman Sustainability Review: Information review of the Anthony-Pieman hydropower scheme" (PDF). Hydro Tasmania. February 2015. Archived (PDF) from the original on 18 June 2023. Retrieved 18 June 2023.