Nant-y-moch Reservoir () is situated in the

Cambrian Mountains The Cambrian Mountains ( cy, Mynyddoedd Cambria, in a narrower sense: ''Elenydd'') are a series of mountain ranges in Wales. The term ''Cambrian Mountains'' used to apply to most of the upland of Wales. Since the 1950s, its application has becom ...

in northern Ceredigion, Wales, near

Pumlumon Pumlumon (historically anglicised in various ways including ''Plynlimon,'' Plinlimon and Plinlimmon) is the highest point of the Cambrian Mountains in Wales (taking a restricted definition of the Cambrian Mountains, excluding Snowdonia, ...

. The reservoir which flooded a part of the valley of the River Rheidol and its headwaters derives its name from a stream, the Nant-y-moch (in English = ''the pigs stream,''), which formerly flowed into the River Rheidol at this spot. The dam is about three miles north of the village of Ponterwyd. The reservoir forms part of the Cwm Rheidol

hydroelectric Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and ...

power scheme and the headwaters of the reservoir include the source of the River Rheidol. The Nant-y-moch component of the hydroelectric scheme has an installed capacity of 13 MW generated as the water from Nant-y-moch enters

Dinas Reservoir Dinas may refer to: Places England * Dinas, an area of Padstow, Cornwall * Castle an Dinas, St Columb Major, an Iron Age hillfort at the summit of Castle Downs, Cornwall * Treryn Dinas, a headland near Treen, on the Penwith peninsula, Cornwal ...

.The Rheidol hydro-electric scheme
/ref>

History

Nant-y-moch Reservoir was created in 1964. The construction of the dam flooded the valley north of it, which included the hamlet of Nant-y-moch. The contents of the graveyard which was to be submerged were relocated to the chapel at Ponterwyd, and a number of

cairn A cairn is a man-made pile (or stack) of stones raised for a purpose, usually as a marker or as a burial mound. The word ''cairn'' comes from the gd, càrn (plural ). Cairns have been and are used for a broad variety of purposes. In prehis ...

s were painstakingly moved, some of which dated back as far as the Iron Age.

References

External links

High definition timelapse video of Nant y Moch dam and reservoir

Panoramic view of Nant y Moch from Drosgol peak
{{authority control Elenydd Reservoirs in Wales Buildings and structures in Ceredigion Lakes of Ceredigion Dams in Wales