took around 2,200 men five years to build the power station

Turning on the power

We don't often welcome rain on a holiday, but we do need it!

Loch Sloy Hydro-electric Power Station is the largest of its kind in the UK and provides the National Park with a sustainable source of electricity. It's an unmistakeable sight on the shores of Loch Lomond.

Hydro-electric power can be used when there's a sudden demand for electricity. Water is stored in Loch Sloy until extra power is needed. Then valves are opened and the water rushes down a 3 km tunnel through Ben Vorlich, turning the turbines and generating electricity. It was 'switched on' for the first time in, 1950.