Hydro capacity accounted for 15.4% of total power plant installations globally in 2023, according to GlobalData, with total recorded hydro capacity of 1,407GW. This is expected to contribute 10.9% by the end of 2030 with capacity of installations aggregating up to 1,562GW. Of the total global hydro capacity, 0.33% is in the UK. Listed below are the five largest active hydro power plants by capacity in the UK, according to GlobalData’s power plants database. GlobalData uses proprietary data and analytics to provide a complete picture of the global hydro power segment. Buy the latest hydro power plant profiles here.

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1. Dinorwig

The Dinorwig is a 1,728MW hydro power project located in Wales, the UK. Post completion of construction, the project was commissioned in 1983. Orsted Onshore; Engie own the project. Buy the profile here.

2. Cruachan

The 440MW Cruachan hydro power project is located in Scotland, the UK. It was commissioned in 1965. The project is owned by Drax Group. Buy the profile here.

3. Ffestiniog

The Ffestiniog is a 360MW hydro project. Engie; Brookfield Renewable Partners owns the project. It was commissioned in 1963. The project was developed by Engie; Brookfield Renewable Partners. It is located in Wales, the UK. Buy the profile here.

4. Foyers

The Foyers hydro project with a capacity of 300MW came online in 1974. The project was developed by British Aluminium. SSE have the equity stakes in the project. It is located in Scotland, the UK. Buy the profile here.

5. Sloy

The Sloy has been operating since 1950. The 152.50MW hydro project is located in Scotland, the UK. The project has been developed by SSE Generation. SSE have the equity stakes in this project. Buy the profile here.

For more details on the latest hydro power plants, buy the project profiles here.

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GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.  

This information is drawn from GlobalData’s Power Plants database, which provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide.