Environment · Consolidated/definitive regional Eco2mix · annual aggregation.
Regional electricity mix transition
How is the electricity generation mix evolving region by region? 2013 → 2025 renewable shares for the top regions, then mix composition in 2025.
Renewable share in the five leading regions
Part ENR des 5 régions en tête (2013 → 2025)
Data details
Average renewable share (2025)
50.0 %
Average across 12 mainland regions
Top renewable region
Bourgogne-Franche-Comté · 93.2 %
2025 ranking (injected production)
Wind + solar (2025)
82.2 TWh
Regional sum converted to TWh
Change 2013 → 2025
+18.3 pts
Average renewable share points
Key facts
- Average regional renewable share (2025): 50.0% · up from 31.7% in 2013 (+18.3 pp).
- Highest regional renewable share: Bourgogne-Franche-Comté (93.2% renewables in 2025).
- Combined wind + solar: 82.2 TWh injected in 2025 (sum across 12 mainland regions).
- 6 region(s) exceed 50% renewable share in 2025.
Regional electricity mix: sharply diverging paths
Grid-injected generation mixes differ widely by region: mountain hydro, northern wind, southern solar. Regional Eco2mix lets us compare these profiles over consolidated and definitive periods.
Northern wind · Windy northern plains
Windy northern plains
"Hauts-de-France and Grand Est lead on wind"
Northern and eastern regions concentrate most mainland wind output.
Their renewable share grows mainly through onshore wind, alongside hydro and bioenergy.
Southern solar · Mediterranean sun
Mediterranean sun
"Occitanie, Nouvelle-Aquitaine and PACA drive solar"
In the south, solar weighs more in the mix, alongside hydro and nuclear.
Recent renewable growth there comes from both solar and plain or coastal wind.
Why multiple series?
Gaps reflect geography (relief, wind, sunshine) and where plants were built · not different local demand: Eco2mix measures injected production, not regional consumption.
Analogy: each region builds its mix like a local menu. Hydro is the historic dish of mountain areas, wind of breezy plains, solar of sunnier regions · nuclear remains the shared French baseline.
What this is not
- Hourly data aggregated to annual shares · consolidated/definitive filter only.
- Covers 12 mainland regions · no overseas territories or Corsica in this file.
- Grid-injected production, not final consumption or net cross-border flows.
Regional electricity mix composition in 2025 (%)
What these figures do not show
Hourly Eco2mix data aggregated to annual shares · consolidated/definitive filter. 12 mainland regions (no Corsica or overseas territories). Measures grid-injected production, not local consumption or net cross-border flows.
Sources
Données éCO2mix régionales consolidées et définitivesRéseau de Transport d'Électricité (RTE) / Open Data Réseaux Énergies · 2026-05-29