The Cruachan Power Station is a pumped-storage hydroelectric power station in Argyll and Bute, Scotland, UK. The scheme can provide 440 MW of power and produced 705 GWh in 2009. The turbine hall is located inside Ben Cruachan, and the scheme moves water between Cruachan Reservoir and Loch Awe, a height difference of 396 m. It is one of onl…The Cruachan Power Station is a pumped-storage hydroelectric power station in Argyll and Bute, Scotland, UK. The scheme can provide 440 MW of power and produced 705 GWh in 2009. The turbine hall is located inside Ben Cruachan, and the scheme moves water between Cruachan Reservoir and Loch Awe, a height difference of 396 m. It is one of only four pumped storage power stations in the United Kingdom, and is capable of providing a black start capability to the National Grid.