World Power Plants

Llyn Brianne Dam4.4 MW Hydroelectric

HydroRenewable

Llyn Brianne Dam is a 4.4 MW hydro power plant in the United Kingdom, operated by Dwr Cymru Welsh Water. Ranked #59 of 141 hydro plants in the United Kingdom. Its 4.4 MW represents 0.06% of the country's total hydro capacity of 7,076 MW. The largest hydro plant in the United Kingdom is Dinorwig at 1,800 MW, making Llyn Brianne Dam 409 times smaller. Nearby plants within 50 km include Cefn Croes (59 MW, Wind), Brechfa Forest West (57.4 MW, Wind), and Rheidol (55.975 MW, Hydro). The facility is located in Wales, approximately 30 km north of Llandovery.

Capacity
4.4 MW
Commissioning Year
1976

50 years old

Owner
Dwr Cymru Welsh Water
Location
52.1203°, -3.7699°

United Kingdom, Europe

Context & rankings
  • 1,950. largest of 3,024 plants in United Kingdom
  • #30,310 worldwide by installed capacity
  • #6,637 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

50 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Dwr Cymru Welsh Water operates 4 plants totalling 17 MW

Regional density

249 plants within 100 km, 17,135 MW combined

Nearest plant: Elan Valley Hydro Scheme (22.1 km)

Location

Coordinates:: 52.120300, -3.769900
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Llyn Brianne Dam is a hydro power plant producing approximately 15 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~24 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Hydro
Energy Source
Renewable
Country
United Kingdom
Continent
Europe
Data Source
Global Power Plant Database

United KingdomEnergy Profile

3,024
Total Plants
155.3 GW
Total Capacity
GasWindNuclearCoal
Top Fuels

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