World Power Plants

Maentwrog is a 35.3 MW hydroelectric power plant in the United Kingdom, operated by Magnox Ltd. It is part of the country's renewable energy infrastructure. Ranked #23 of 141 hydro plants in the United Kingdom, Maentwrog's 35.3 MW represents 0.5% of the UK's total hydro capacity of 7,076 MW. The largest hydro plant in the United Kingdom is Dinorwig at 1,800 MW, making Maentwrog 51 times smaller. Nearby plants include Dinorwig (1,800 MW, Hydro), Dinorwig Power Station (1,728 MW, Hydro), and Ffestiniog Power Station (360 MW, Hydro). The facility is located in Wales, approximately 30 km from Bangor.

Capacity
35.3 MW
Commissioning Year
1965

61 years old

Owner
Magnox Ltd
Location
52.9460°, -3.9879°

United Kingdom, Europe

Context & rankings
  • 389. largest of 3,024 plants in United Kingdom
  • #15,809 worldwide by installed capacity
  • #3,662 of 8,493 Hydroelectric plants worldwide
  • 0.02% of the installed capacity of United Kingdom
Age & fleet comparison

61 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Magnox Ltd operates 6 plants totalling 2,717 MW

Regional density

131 plants within 100 km, 14,520 MW combined

Nearest plant: Trawsfynydd nuclear power station (3.5 km)

Location

Coordinates:: 52.946000, -3.987900
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Maentwrog is a hydro power plant producing approximately 124 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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