- Category: Sustainable Power
- Published on Sunday, 06 October 2013 11:49
- Written by Maggi Kaye
- Hits: 3705
Natural Power Production:
The Galloway Water Power Company
The Galloway Water Power Act of 1929 provided for the setting up of the Galloway Hydro-Electric Scheme between 1930 - 1936 which covers a total of 396 sq. miles. Originally it involved the construction of 5 power stations, eight large dams, four tunnel systems, two seasonal reservoirs, and five daily storage reservoirs. The total drop between Loch Doon and the sea is only 700 feet over a distance of 40 miles.
In the north, the level of Loch Doon was raised 27 feet, submerging the which stood on an island in the loch. The outer shell of the castle was dismantled and re-built on the shore. The outlet from the loch to the Clyde was dammed and tunnels were constructed through the adjoining hills so that water could be diverted to and from the water of Deugh.Drumjohn, (2.3 MW) the 9th and latest power station to be constructed in 1985 makes use of the needle valve already there, and lies between Loch Doon and the Deugh. By this means water can be let intoKendoon daily reservoir together with the normal river water for use in Kendoonpower station which has a capacity of 24 MW.
The water then passes down the river to Carsfad reservoir and power station which has a capacity of 12 MW and on to Earlstonwhich has a capacity of 14 MW. Thereafter the water discharges into the original river bed and flows into Loch Ken. These two power stations have always been automatically controlled from Glenlee, capacity 24 MW.
Glenlee is the only high head station in the Galloway Scheme it gets its water from an artificial loch (Clatteringshaws), built on the upper reaches of the Blackwater of Dee, and the water drops 125 metres through 6 kilometres of tunnel to reach the power station where it is discharged into Loch Ken which is used to regulate the water level for Tongland power station (33MW) on the river Dee, just outside Kirkcudbright. The water for Tongland is controlled by a barrage which has six sluice gates at Glenlochar. Tongland has it’s own reservoir with a dam on the river Dee and thereafter the water flows into the Solway.
The scheme is used to give peak load support to the National Grid. There is a visitor centre at Tongland where you may see the turbine hall and learn more about hydro power.