Loch Sloy
Reservoir (20th Century)
Site Name Loch Sloy
Classification Reservoir (20th Century)
Alternative Name(s) Loch Sloy Hydro-electric Scheme; Inveruglas Water
Canmore ID 281292
Site Number NN21SE 2
NGR NN 28100 12000
Datum OSGB36 - NGR
Permalink http://canmore.org.uk/site/281292
- Council Argyll And Bute
- Parish Arrochar
- Former Region Strathclyde
- Former District Dumbarton
- Former County Dunbartonshire
NN21SE 2.00 28100 12000
NN21SE 2.01 NN 28871 11074 Dam
See also NN30NW 7.
Loch Sloy
(Reservoir)
Top water level 285 metres above Newlyn Datum 1972 [NAT]
OS 1:10,000 map, 1976.
EXTERNAL REFERENCE
National Library - Country Life Jan 5th '45 - article and photographs on Loch Sloy, Mora, Loch Garry.
(Undated) information in NMRS.
Note (26 October 2023)
The Loch Sloy hydro electric scheme
This was the first scheme to be tackled in 1945. Serious problems arose due to the post-war shortages of manpower and materials. The first of these was addressed by using hundreds of German prisoners of war. Access problems required the building of roads and conveyors for materials landed from Loch Lomond. Severe weather conditions delayed progress and the project was not completed until 1950.
A dam of massive buttress type was built at the south-eastern end of Loch Sloy leading to a tunnel through Ben Vorlich, followed by four circular pipelines leading to to the Loch Sloy power station at Inveruglas on the side of Loch Lomond. A surge shaft was incorporated in Ben Vorlich.
The generating sets consist of four vertical shaft Francis turbines each coupled to a 32,500 kW alternator. Delays due to adverse weather continued and transport problems for the heavy equipment which was finally installed by 1950. When fully loaded the turbines pass a million gallons of water per minute.
Information from NRHE item catalogue number WP007424 compiled by George Walker in 2005.
