Aigas Power Station

A hydro-electric power station situated in picturesque forested gorge on the course of the River Beauly in Inverness-shire. This is penultimate station on the Affric-Beauly Hydro-Electric Power Scheme, located 1¼ miles (2 km) west southwest of the final station at Kilmorack, which is of a similar design. Opened in 1962, Aigas Power Station is integrated with a concrete mass-gravity dam built across the river, which is 91.5m (300 feet) in length and 26m (85 feet) high and providing a head of water of 18m (60 feet). All of water previously used by the other power stations in the scheme pass through this station, which also acts to regulate flow on the Beauly and prevent flooding. A large central drum gate is flanked by radial gates which allow the outflow of the dam to be effectively controlled, balancing storage with electricity generation and flood regulation. The turbine hall contains two Kaplan-type 10 MW turbines, giving a total generation capacity of 20 MW. Built by the North of Scotland Hydro-Electric Board, the station is now operated by Scottish & Southern Energy Plc and was refurbished 2002-04. It incorporates a Borland fish pass to allow salmon to move upstream to their spawning grounds.

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