Mackintosh Dam
Location of the Mackintosh Dam in Tasmania
Country	Australia
Location	Western Tasmania
Coordinates	41°41′24″S 145°38′24″E / 41.69000°S 145.64000°E / -41.69000; 145.64000
Purpose	Power
Status	Operational
Opening date	1981 (1981)
Owner(s)	Hydro Tasmania
Dam and spillways
Type of dam	Embankment dam
Impounds	Mackintosh River
Height	75 metres (246 ft)
Length	465 metres (1,526 ft)
Dam volume	927 thousand cubic metres (32.7×10^6 cu ft)
Spillways	1
Spillway type	Uncontrolled
Spillway capacity	1,021 cubic metres per second (36,100 cu ft/s)
Reservoir
Creates	Lake Mackintosh
Total capacity	913,690 megalitres (32,267×10^6 cu ft)
Catchment area	512 square kilometres (198 sq mi)
Surface area	276.1 hectares (682 acres)
Mackintosh Power Station
Coordinates	41°41′24″S 145°38′24″E / 41.69000°S 145.64000°E / -41.69000; 145.64000
Operator(s)	Hydro Tasmania
Commission date	1982 (1982)
Type	Conventional
Hydraulic head	61 metres (200 ft)
Turbines	1 x 81 megawatts (109,000 hp) Fuji Francis-type turbine
Installed capacity	81 megawatts (109,000 hp)
Capacity factor	0.85
Annual generation	394 gigawatt-hours (1,420 TJ)
Website hydro.com.au/energy/our-power-stations/pieman
[1]

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

Technical details

Part of the Pieman River scheme that comprises four hydroelectric power stations, the Mackintosh Power Station is the second station in the scheme. The power station is located aboveground at the foot of the rock-filled concrete faced Mackintosh Dam across the Mackintosh River and the Tullabardine Dam across the Tullabardine Creek that together form Lake Mackintosh. Water from the lake is fed to the power station by a 200-metre (660 ft)-long single tunnel.^[2]

The power station was commissioned in 1982 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 394 gigawatt-hours (1,420 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 Mackintosh Power Station flows into Lake Rosebery for use in the Bastyan Power Station.^[2]