UK seabed offshore wind electricity generation
UK seabed offshore wind electricity generation stood at 11,227.21 Gigawatt hours in Q2 2026, according to GOV.UK official statistics. It is one of the indicators in the Renewables and gas supply table (Value · Quarterly), with a complete series running from Q1 2010 to Q2 2026. The complete series with an interactive chart, free to download.
This indicator in the Renewables and gas supply table
| Indicator | Q2-2026 | Q1-2026 | Q4-2025 | Q3-2025 | Q2-2025 | Q1-2025 | Q4-2024 | Q3-2024 | Q2-2024 | Q1-2024 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Electricity generated | |||||||||||
| Offshore wind — seabed | 11,227.21 | 16,940.54 | 17,738.95 | 10,824.91 | 10,479.93 | 12,976.9 | 13,846.39 | 9,837.62 | 9,994.7 | 15,126 | |
| Solar photovoltaics | 8,434 | 2,658.32 | 2,121.93 | 6,937.52 | 8,412.33 | 2,652.78 | 1,833.29 | 5,546.34 | 5,768.28 | 1,843.8 |
Understanding UK seabed offshore wind electricity generation
Electrical energy output generated by marine wind turbine installations anchored to the seabed surrounding the United Kingdom is quantified here in gigawatt hours. This specific measure isolates offshore marine wind farms from onshore counterparts and non-wind renewables, focusing exclusively on turbine arrays positioned in coastal and territorial waters. Generation figures account for total metered electricity delivered to the transmission grid from these offshore locations after accounting for internal park transformer losses.
Evaluating these figures demands careful attention to maritime weather seasonality, because winter storms and calmer summer periods directly influence turbine load factors across quarters. Initial quarterly publications rely on partial data feeds and undergo systematic revisions once operators submit audited meter records. Comparing this offshore series against onshore wind generation requires noting the typically higher average wind speeds and larger turbine scales found at sea. Observers must avoid treating nameplate capacity additions as immediate spikes in generation, given the phased commissioning schedules typical of marine construction projects.
Frequently asked questions
- How does seabed offshore wind generation differ from onshore wind data in the same release?
- This specific series restricts its scope exclusively to wind turbines anchored in marine waters, excluding all terrestrial land-based installations.
- Do these offshore figures include floating wind turbine installations?
- The series covers marine wind developments in coastal waters, encompassing both traditional seabed-fixed foundations and newer floating configurations where applicable.
- Why do early quarterly estimates of offshore wind output frequently undergo revision?
- Operators submit preliminary data before complete grid settlement meters are finalised, leading to subsequent adjustments in published generation totals.