Ffestiniog Power Station
Ffestiniog Power Station is a 360 MW pumped-storage station in Wales, operated by Engie Power. The UK government lists it as operational in its register of power stations (DUKES table 5.11, May 2025).
- Pumped hydro
- Wales
Key facts
- Installed capacity
- 360 MW
- Status
- Operational
- Technology
- Pumped Hydro Β· Pumped hydro
- Operator
- Engie Power
- Region
- Wales
- Country
- Wales
- Grid connection (DUKES)
- HV
- Combined heat & power
- No
- Coordinates
- 52.9806, -3.9690
Location
Map position from the published coordinates. For small sites this can be an approximate point rather than the exact boundary. Map Β© OpenStreetMap contributors.
How Ffestiniog Power Station compares
Pumped-storage stations work like giant batteries: they pump water uphill into a reservoir when electricity is cheap or plentiful and release it through turbines when demand is high.
All UK hydro schemes and pumped-storage stations Hydro schemes and pumped-storage stations in Wales All run by Engie PowerNearby generating sites
- Croesor Β· 0.51 MW small hydro scheme3.4 km
- Trawsfynydd Nuclear Power Station Β· 390 MW nuclear power station6.4 km
- Maentwrog Β· 35.3 MW hydroelectric station6.6 km
- Garnedd Β· 0.56 MW small hydro scheme8.8 km
- Dinorwig Power Station Β· 1,800 MW pumped-storage station17.7 km
- Cwm Dyli Β· 9.9 MW hydroelectric station18.9 km
- Moel Moelogan 2 Β· 11.7 MW onshore wind farm23.8 km
- Moel Moelogan Β· 2.6 MW onshore wind farm24.4 km
Also operated by Engie Power
Engie Power operates 11 sites in the register. Largest first:
- Dinorwig Power Station Β· pumped-storage station1,800 MW
- Scotia Wind (Craigengelt) Ltd Β· onshore wind farm20 MW
- Sober Hill Wind Farm Ltd Β· onshore wind farm12.3 MW
- Blantyre Muir Wind Energy Ltd Β· onshore wind farm12.3 MW
- Cairnborrow Wind Energy Ltd Β· onshore wind farm10.3 MW
- Barlockhart Moor Wind Energy Ltd Β· onshore wind farm8.2 MW
- Carsington Wind Energy Ltd Β· onshore wind farm8.2 MW
- Flimby Wind Energy Ltd Β· onshore wind farm6.15 MW
Planning history
From the government's Renewable Energy Planning Database (REPD), matched to this site by location, capacity and name.
- Planning status
- Operational
- Site name in planning record
- Ffestiniog
- Developer / operator
- First Hydro Company
- Planning authority
- Gwynedd
- Construction started
- 1 January 1956
- Began operating
- 1 January 1961
- Capacity in planning record
- 360 MW
- Address
- Ffestiniog, Gwynedd, Snowdonia, Conwy, LL41 3TP
- REPD reference
- 6840
Source
Department for Energy Security and Net Zero (DESNZ), Digest of UK Energy Statistics (DUKES), table 5.11: power stations in the United Kingdom β operational at end of May 2025.
Capacity is installed capacity as published, not current output. Status reflects the source date, not live operation.
View the original source
Last checked by Octary: 15 July 2026
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