The Anonymous Widower

A Possible Balmacaan Pumped Storage System

This article on Power Technology is entitled SSE Proposes Loch Ness Hydro Power Plant.

These are the first three paragraphs.

Scottish and Southern Energy (SSE) has begun consultations to develop a 600MW hydro electric power plant on the shores of Loch Ness in Scotland.

SSE proposes to build a pumped storage scheme on the Balmacaan Estate between Invermoriston and Drumnadrochit.

The plan also includes construction of a dam and a new reservoir at Loch nam Breac Dearga, north-east of Invermoriston, according to

This Google Map shows the location of Loch nam Breac Darga.


  1. Loch Ness runs diagonally across the map.
  2. Invermoriston is in the South-West corner of the map.
  3. Loch nam Breac Darga is marked by the red arrow and is 452 metres above sea level.
  4. Drumnadrochit is at the North of the map, just to the West of Urquhart Castle.
  5. The Foyers Pumped Hydro scheme, which I wrote about in The Development Of The Foyers Pumped Storage Scheme is on the opposite bank of Loch Ness from Loch nam Breac Darga.

This could be Scotland’s largest hydro-electric plant.

I can’t find a value for the amount of energy that can be stored, but I suspect it could be in the order of 15-20 GWh.

The stories about this project seem to be thin on the ground, so could it be that this project has been placed on the back burner by SSE.

February 19, 2022 Posted by | Energy, Energy Storage | , , , , , | 1 Comment