Hydro, wave and tidal electricity generation by UK country; GWh, 2024.
Hydro and marine electricity generation is compared across the four UK countries in 2024. Values are annual gigawatt-hours generated within each country. Scotland leads at 5,252.5 GWh, far ahead of Wales at 371.6 GWh. Northern Ireland records 35.6 GWh, the smallest total.
| Rank | Entry | Value | Period |
|---|---|---|---|
| 1 | Scotland | 5.25K | 2024 |
| 2 | Wales | 371.6 | 2024 |
| 3 | England | 148.9 | 2024 |
| 4 | Northern Ireland | 35.6 | 2024 |
Source 1: Electricity generation and supply by UK country
Publisher: UK Department for Energy Security and Net Zero
Dataset/table: Electricity generation by fuel and UK country
Units: GWh and percent
Date checked: 2026-07-15
Evidence: Supports 2024 hydro and marine electricity generation values for all four UK countries.
Gigawatt-hours measure the volume of electricity generated during the year. Values refer to generation within each country rather than electricity ultimately consumed there.
The ranking selects the 2024 hydro and marine electricity generation value for each UK country from the same official regional electricity release and sorts the four values from highest to lowest.
All four rows use the same official source, calendar year, fuel definition and gigawatt-hour unit.
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