Great Britain generation mix by technology
This page summarizes the electricity supply mix in Great Britain, focusing on how generation is split across technologies (e.g., wind, gas, solar, nuclear, hydro). Great Britain is characterized by high wind penetration, a flexible gas fleet, and strong interconnector links to neighboring markets, making cross-border flows a key balancing lever.
Generation mix in 2025
A lightweight view of the Great Britain supply mix. For advanced analytics (hourly granularity, custom groupings, exports, and APIs), explore Axion Insights.
Great Britain generation by technologies
Daily production by technology and day-ahead dataset (CSV)
Download a clean CSV time series for analysis, reporting, and forecasting. The dataset covers January 2020 to December 2025 with daily resolution. If you need power market datasets with different granularity, areas or need more fundamentals such as the generation mix for Great Britain, see Data Access.
Great Britain supply mix highlights
What's been happening in Great Britain's power mix (2020-2025)
2020-2021: Offshore wind expanded and began to dominate renewable output, while gas provided most balancing and flexibility.
2022: The energy crisis increased gas price sensitivity and elevated wholesale prices, while interconnector imports were crucial during tight periods.
2023: Wind and solar output increased, boosting low-price hours and reducing gas burn during high-renewable periods.
2024: Offshore wind additions and growing solar capacity increased intraday volatility and drove more frequent negative price events.
2025: The system increasingly depended on wind output, interconnector flows, and gas flexibility to manage variability.
This summary reflects structural trends in the Great Britain national system. Short-term monthly outcomes remain sensitive to weather, outages, demand conditions, and cross-border flows.
Great Britain electricity generation: year-by-year analysis (national system)
| Metric / Technology | 2020 (TWh) | 2021 (TWh) | 2022 (TWh) | 2023 (TWh) | 2024 (TWh) | 2025 (TWh) |
|---|---|---|---|---|---|---|
| Demand (approx.) | 273.5 | 279.2 | 266.4 | 261 | 268.2 | 271.5 |
| Wind | 75.3 | 82.1 | 80.4 | 90.2 | 96.5 | 99.4 |
| Solar PV | 13.5 | 14.7 | 16.4 | 18.2 | 20.1 | 21.5 |
| Hydro | 5.6 | 5.8 | 5.2 | 5.5 | 5.7 | 5.8 |
| Nuclear | 50.5 | 48.9 | 42.2 | 40.8 | 40 | 38.6 |
| Gas | 87.6 | 90.2 | 85.1 | 78.4 | 76 | 74.3 |
| Coal | 5.2 | 3.4 | 5.8 | 4.1 | 3.2 | 2.5 |
Demand is approximated from published balance components, generation totals, and net interconnector balances.
Do you need more data on the Great Britain power market?
This page provides a public summary. Additional access to hourly generation, prices or demand is available on the Axion Insights platform. Supporting extended time ranges, custom granularities, and export.
Quarter-hourly generation mix by technology
Coverage across European power markets and natural gas datasets
Exports (CSV) and API access
If you already have an account, you can log in.