Limestone Generating Station

Limestone Generating Station is a run-of-the-river[1] hydroelectric dam on the Nelson River approximately 750 kilometres (470 mi) north of Winnipeg near Gillam, Manitoba. Part of the Nelson River Hydroelectric Project, Limestone was Manitoba Hydro's fifth and largest generating station to be built on the Nelson River. The station was built on the Nelson River at Long Spruce Rapids. The site is approximately 23 kilometres (14 mi) downstream of Manitoba Hydro's Long Spruce Generating Station.

Limestone Generating Station
Limestone Generating Station is located in Manitoba
Limestone Generating Station
Location of Limestone Generating Station in Manitoba
CountryCanada
LocationGillam, Manitoba
Coordinates56°30′25″N 94°6′25″W / 56.50694°N 94.10694°W / 56.50694; -94.10694
StatusOperational
Construction began1985
Opening date1990-1992
Construction costC$1,430 Billion
Owner(s)Manitoba Hydro
Dam and spillways
Type of damBarrage
ImpoundsNelson River
Length299 m (981 ft)
Dam volume2,900,000 m3 (102,413,000 cu ft)
Spillway capacity9,570 m3/s (337,960 cu ft/s)
Reservoir
Surface area27.2 km2 (10.5 sq mi)
Normal elevation85.3 m (279.9 ft)
Power Station
TypeRun-of-the-river
Hydraulic head27.6 m (90.6 ft)
Turbines10 × 134 MW;
propeller-type
Installed capacity1,340 MW
Annual generation7,700 GWh
Website
Limestone GS
Manitoba Hydro Limestone generating station entrance sign near Gillam, Manitoba.
Manitoba Hydro Limestone generating station building sign near Gillam, Manitoba.

The dam is owned and operated by Manitoba Hydro. It has ten generating units with a capacity of 1,330 megawatts and annual generation around 8.5 terawatt-hours. Although work at the site began in 1976 with a cofferdam completed in 1978, construction was suspended owing to a slowing of demand for electric power. The project resumed in 1985, with the first generating unit delivering power in 1990 and completion in 1992. Construction cost was $CDN 1.43 billion; favorable economic conditions at the time resulted in lower cost than budget.[2]

See also

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References

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  1. ^ "Limestone Generating Station". Manitoba Government. Archived from the original on 4 November 2017. Retrieved 28 February 2012.
  2. ^ Manitoba Hydro, Limestone Generating Station. Retrieved: 2 February 2012.
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