STWLAN DAM FFESTINIOG [UPPER RESERVOIR]:

Scope and Content

The Ffestiniog Pumped Storage Scheme was the UK's first major power pumped storage facility which generated up to 360w of electricity a minute from the release of its 4 water turbines providing the whole of North Wales with surplus energy for several hours. It was opened in 1963. The photo shows a private coach party visiting the dam. [B&W] [Reprographic Services, North Western Region, Central Electricity Generating Board.]