France solar power generation: Île-de-France
France solar power generation: Île-de-France stood at 10.77 GWh in Dec 2025, according to ODRé – Open Data Réseaux Énergies (RTE, NaTran, Teréga). It is one of the indicators in the Monthly electricity generation and network table (Value · Monthly), with a complete series running from Jan 2014 to Dec 2025. The complete series with an interactive chart, free to download.
This indicator in the Monthly electricity generation and network table
| Indicator | 12-2025 | 11-2025 | 10-2025 | 09-2025 | 08-2025 | 07-2025 | 06-2025 | 05-2025 | 04-2025 | 03-2025 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Île-de-France | |||||||||||
| Solar | 10.77 | 14.75 | 31.63 | 42.63 | 60.99 | 67.87 | 57.42 | 49.98 | 47.1 | 42.03 | |
| Thermal | 111.51 | 115.09 | 25.29 | 18.7 | 19.62 | 12.99 | 32.82 | 8.56 | 28.88 | 120.35 |
Understanding france solar power generation: Île-de-France
This dataset measures electricity converted from photovoltaic panels installed on residential, commercial, and utility-scale solar arrays across the designated region. It captures energy injected into public networks, explicitly excluding decentralized self-consumption systems that do not export surplus power to the grid. In comparison to other generation categories listed for the same area, this series is uniquely bound to seasonal daylight duration, cloud cover, and solar irradiance angles.
Reading these metrics effectively demands careful attention to annual solar geometry, which introduces heavy, predictable intra-year peaks during summer months and deep troughs in winter. Initial monthly publications are subject to revisions following delayed meter collections and feed-in verification checks. Analysts should rely primarily on matching-period evaluations against prior yearly cycles to eliminate the distorting impact of seasonal weather variations.
Frequently asked questions
- Are rooftop panels used solely for private homes included here?
- Only systems that export surplus electricity into the public grid are counted; completely off-grid or unmonitored self-consumption arrays are excluded.
- Why do winter months show such pronounced drops in this series?
- Shorter daylight hours and frequent cloud cover severely limit photovoltaic conversion efficiency and output during that part of the year.
- What is the best comparison method for evaluating solar output trends?
- Year-on-year matching against the same month previously is essential to isolate structural capacity growth from seasonal weather changes.