Dinorwig Power Station
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The Dinorwig Power Station, 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.
Part of the power station as seen on the exterior of Elidir Fawr.
Elidir Fawr with Marchlyn Mawr at right
Looking down on the power station from the slate trail above
Marchlyn Mawr
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Marchlyn Mawr reservoir is a high level lake in Snowdonia behind Elidir Fawr mountain. It is used as the high level water source for Dinorwig power station, a closed-loop pumped storage hydroelectric
Dinorwig Power Station
…100,000 US gallons) per second (about the volume of a 25 m (27-yard) swimming pool every second). Water is stored at 636 m (2,087 ft) above sea level in Marchlyn Mawr reservoir. When power needs to be generated, water from the reservoir is sent down through the turbines into Llyn Peris, which is at approximately 100…
Marchlyn Mawr from Elidir Fawr geograph.org.uk 8192