# EU energy security and renewable energy transition

> Live situation record from CLSTR: https://clstr.news/situations/eu-energy-security-and-renewable-energy-transition
> Updated: 2026-10-03T13:22:46.000Z. Sources: 7. Developments: 2.

The European energy market continues to face volatility driven by geopolitical tensions and disruptions to fossil fuel supplies. Although Middle East crude oil exports recovered in late September 2026, high freight costs, increased insurance, and refining difficulties continue to drive up fuel prices. To mitigate this market uncertainty, G7 countries coordinated the release of 100 million barrels from emergency reserves.

Renewable energy production remains a critical stabilizer against these fluctuations. Solar energy has provided substantial economic relief, reportedly saving the EU approximately 37.4 billion euros by reducing reliance on imported gas since the onset of the conflict in Iran. In June, solar power became the largest single source of electricity in the EU, providing 25% of the bloc’s supply.

Member states are seeing varying degrees of success in mitigating fossil fuel dependence. Spain has doubled its wind and solar capacity since 2019, adding over 40 GW to its energy mix and reducing the impact of expensive fossil fuel-linked electricity prices by 75%. In Croatia, local initiatives such as solar installations in schools in Varaždin County are contributing to regional energy security and cost reductions.

## Claims

- Solar energy production reduces Europe's dependence on imported fossil fuels. (corroborated by 2 sources)
- Solar energy has saved Europe approximately 37.4 billion euros by reducing the need for imported gas since the start of the war in Iran. (corroborated by 2 sources)
- Solar energy became the largest single source of electricity in the EU in June, accounting for 25% of the bloc's electricity production. (corroborated by 2 sources)
- Spain has doubled its wind and solar capacity since 2019, adding over 40 GW to its energy mix. (corroborated by 2 sources)
- The expansion of wind and solar capacity in Spain has reduced the impact of expensive fossil fuel generators on electricity prices by 75% since 2019. (corroborated by 2 sources)
- G7 countries coordinated the release of 100 million barrels from emergency reserves to mitigate market uncertainty. (single source)
- Crude oil exports from the Middle East recovered in late September. (single source)
- Fuel prices are being driven up by increased freight costs, higher insurance, and refining difficulties. (single source)

## Timeline

### 2026-10-03: Europe energy security: Solar power offsets rising fossil fuel costs

Europe faces energy price pressures from geopolitical conflicts, but solar energy has saved the EU 37.4 billion euros and provided 25% of its electricity in June, enhancing energy security.

5 sources. https://clstr.news/cluster/europe-energy-security-solar-power-offsets-fossil-fuel-volatility

### 2026-09-30: Eurelectric report: Clean energy buffered EU against fossil fuel volatility

Eurelectric's 2026 report shows clean energy protected the EU from fossil fuel volatility, with renewables accounting for 72% of electricity production despite rising gas prices.

2 sources. https://clstr.news/cluster/eurelectric-report-clean-energy-buffered-eu-against-fossil-fuel-volatility

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Cite as: EU energy security and renewable energy transition. CLSTR, https://clstr.news/situations/eu-energy-security-and-renewable-energy-transition