The scheme, which is today operated by Drax, can produce a total peak power of around 110 megawatts, with an overall load factor of around 0.25.
[3] The scheme was extended in 1984 with the addition of the Drumjohn power station which made use of the existing needle valve where the water from Loch Doon and the Deuch feed into the Dee.
[citation needed] In 2018 Drax Group purchased the scheme, alongside a number of other assets, from then owners Scottish Power.
This committee was set up to "make to the Company such recommendations as they may think are reasonable and proper for the preservation of the beauty of the scenery" (from the 1929 Galloway water power act).
Tarbolton was designer of the Pitlochry power station which bears some striking similarities to the Galloway turbine halls.
[citation needed] In their book Power from water (1960), two partners of Sir Alexander Gibb & Partners, Angus Paton, and J Guthrie Brown (the latter of whom is known to have worked on the Galloway scheme), write that "The architecture of the power stations, under the watchful eye of the amenity committee...was given the most careful attention."