Quoich Dam
Great Glen Scheme

Built in 1955, Quoich dam measures 38m high and 320m long. At the time, it was the largest rockfill dam in Britain. At the top of a cascade system, Loch Quoich provides the main storage for the scheme’s southern section. The water from the loch discharges via a tunnel to Quoich power station. 

Hydro in the Highlands

In 1943, only one in a hundred crofts in the Highlands had electricity. But in just a few decades, affordable electricity would transform the way people lived. Hydro power made this

Great Glen Scheme

The Great Glen scheme lies along the shores of Loch Ness and the area to the west of Fort Augustus. It takes advantage of the heavy rainfall in this region, which averages four times greater than on Scotland’s east coast. This is one of the wettest regions in the entire UK.

Completed in 1957, the Great Glen scheme contains two main sections with five power stations. The southern section centres on the catchment for the River Garry and the northern on the River Moriston. This scheme pioneered the use of underground stations in the UK. This design found favour in the Highlands as they protected the area’s scenic beauty. 


Invergarry dam

Invergarry dam stores water discharging from Quoich power station and runoff from nearby hills. From here, water flows via a tunnel to Invergarry power station.