Dinorwig Power Station
| Dinorwig Power Station | |
|---|---|
Part of the power station as seen on the exterior of Elidir Fawr. | |
| Location | Dinorwig, Wales |
| Coordinates | 53°07′07″N 04°06′50″W / 53.11861°N 4.11389°W |
| Construction began | 1974 |
| Opening date | 1984 |
| Construction cost | £425 million |
| Owner(s) | First Hydro Company (a division of Engie) |
| Reservoir | |
| Creates | Upper: Marchlyn Mawr Lower: Llyn Peris |
| Power Station | |
| Commission date | 1984 |
| Turbines | 6 × 300 MW (400,000 hp) |
| Installed capacity | 1,800 MW (2,400,000 hp) |
| Website electricmountain.co.uk/ (archived April 2022) | |
The Dinorwig Power Station (/dɪˈnɔːrwɪɡ/; Welsh: [dɪˈnɔrwɪɡ]), known locally as Electric Mountain, or Mynydd Gwefru, is a pumped-storage hydroelectric scheme, near Dinorwig, Llanberis in Snowdonia national park in Gwynedd, north Wales. The scheme can supply a maximum power of 1,728 MW (2,317,000 hp) and has a storage capacity of around 9.1 GWh (33 TJ).