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Output over the last 7 days
About Foyers
Foyers is a pumped storage hydro station on the shore of Loch Ness in the Highlands. It was commissioned in 1974. It pumps water uphill to its top reservoir when power is plentiful, and lets it back down through turbines when the grid needs it.
Its 320 MW of registered generating capacity is spread across 2 balancing mechanism units. Every half hour each unit tells the grid how much it will generate (its physical notification): that is the live figure above, and GridMonkey records it every half hour for the chart.
Pumped storage stations are giant water batteries: they pump water uphill when power is plentiful and generate when the grid needs it, within a minute or two.
| Type | Pumped storage hydro |
|---|---|
| Registered capacity | 320 MW |
| Commissioned | 1974 (DUKES 5.11) |
| Area | Highland |
| Location | On the shore of Loch Ness in the Highlands 57.262° N, 4.483° W |
| Owner or operator | SSE |
| Elexon lead party | SSE Generation Ltd |
| BM units | T_FOYE-1 160 MW, T_FOYE-2 160 MW |
| Size | 4th largest of the 4 pumped storage stations on GridMonkey's list |
Other pumped storage stations
- Dinorwig 1,920 MW, Gwynedd
- Cruachan 453 MW, Argyll and Bute
- Ffestiniog 365 MW, Gwynedd
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Contains BMRS data © Elexon Limited copyright and database right 2026 (licence). Station names, areas and owners or operators come from GridMonkey's own table, matched to the units in Elexon's register; a station's output here is its physical notification, not metered generation. Year commissioned and location: Power stations in the United Kingdom (DUKES 5.11) (Department for Energy Security and Net Zero, May 2026). Contains public sector information licensed under the Open Government Licence v3.0.