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Positive sustainability aspect
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Passage of aquatic species
A novel penstock screen design on the Puntledge Power Station intake, in Canada, separates juvenile anadromous fish from power station inflows and returns them safely to the river below, vastly reducing fish mortality during downstream migration.
Source: IEA Hydropower Implementing Agreement - Annex VIII.
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| Overview
In 1913, Canadian Collieries Ltd. completed the construction of a hydroelectric facility on the Puntledge River to supply power to local coalmines. The facility consisted of an impoundment dam on Comox Lake, a low diversion dam, an intake structure 4 km downstream of Comox Dam, and a flume and penstock system conveying the water to a powerhouse a further 7 km downstream.
In 1953, the British Columbia Power Commission initiated a project to expand the facility, a project completed in 1956. The new facility included a 5.1 km long penstock from the diversion dam to a 24 MW powerhouse located on the right bank of the Puntledge River.
The facility was acquired by BC Hydro in 1962.
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Scheme Specifications
Dam name
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Scheme operator
BC Hydro
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Size of scheme (MW)
24 |
Country
Canada
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Catchment area
450 km2
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River
Puntledge
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Effective reservoir capacity
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Construction years
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1913 (completion of original facility)
1953 (upgraded facility)
1993 (retrofitting of screens)
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Reservoir size
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External recognition
Association of Professional Engineers and Geoscientists 1995 Environmental Award Competition Design, Construction and Monitoring Phase, presented for design and construction of Eicher penstock fish screens.
Electric Power Research Institute (EPRI) contribution to the Electrical Industry and Customer in the development of new technology
Electrical Power Research Institute (EPRI) 1994 Generation and Storage Product Champion, presented to Mr. H.A. Smith at BC Hydro
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