- Czechia: Nuclear supplied 42% of electricity in 2025, overtaking coal, gas and oil combined at 40%. Fossil fuels had held the larger share in 2024.
- Slovenia: Fossil fuels supplied 19.78% of electricity in 2025, down from 23.46% in 2024. Coal's share fell, although gas gained ground.
- Luxembourg: In a separate development, domestic electricity generation rose 12.3% in July 2026 to 288.11 GWh compared with June.
These national figures show less reliance on fossil fuels in two EU electricity mixes, alongside later growth in Luxembourg's domestic output—not a single EU-wide trend.