# Catalonia's 2025 electricity mix

> Live situation record from CLSTR: https://clstr.news/situations/catalonias-2025-electricity-mix
> Updated: 2026-07-26T22:30:00.000Z. Sources: 7. Developments: 3.

In early June 2025 a report showed nuclear 55.8 % of Catalonia’s generation while renewables were 21.3 %. By July the renewable share had fallen to 15.3 % as wind output dropped sharply; nuclear still supplied about half of demand (≈50 %) and imports rose to roughly 20 % of consumption, raising concerns about energy sovereignty.

A July 2026 report from the Observatori de les Energies Renovables de Catalunya (OBERCat) confirmed the 15.3 % renewable share for 2025, noting that renewable generation fell 3.1 % to 6,941 GWh while total demand rose 2.7 %. Imports (7,145 GWh) exceeded the combined renewable output for the first time, prompting warnings of a loss of sovereignty. Wind production declined 16.8 % YoY to 5.2 % of demand, solar grew 17.5 % but contributed only 1.1 % of demand, hydro supplied 8.4 %, nuclear remained at 50.4 %, fossil fuels at 15 %, and imports at 20 %.

An accompanying analysis highlighted that Catalonia’s electricity consumption continues to outpace its own generation, making it Spain’s highest‑demand autonomous community, while the neighbouring Basque Country recorded a 7.5 % drop in June demand, driven by industrial slowdown. The contrasting trends underline divergent regional energy dynamics within Spain and the difficulty Catalonia faces in meeting its 2030 clean‑energy target.

## Timeline

### 2026-07-26: Catalonia's energy deficit contrasts with Basque Country's reduced electricity demand

Catalonia faces a growing electricity shortfall and rising imports, while the Basque Country saw a 7.5% drop in June demand, mainly from industry.

2 sources. https://clstr.news/cluster/catalonias-energy-deficit-contrasts-with-basque-countrys-reduced-electricity-demand

### 2026-07-21: Catalonia's renewable electricity share falls to 15.3% in 2025

Catalonia's renewable electricity share dropped to 15.3 % in 2025 as wind output fell and demand rose, forcing imports that exceeded clean generation, while nuclear supplied half the power.

3 sources. https://clstr.news/cluster/catalonias-renewable-electricity-share-falls-to-153-in-2025

### 2026-06-29: Catalonia's 2025 power mix dominated by nuclear as renewables slip

Catalonia's 2025 electricity mix shows nuclear at 55.8%, renewables falling to 21.3% as solar beats wind; total output 42.3 TWh, demand up 3.8%, imports 5.8 TWh.

2 sources. https://clstr.news/cluster/catalonias-2025-power-mix-dominated-by-nuclear-as-renewables-slip

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Cite as: Catalonia's 2025 electricity mix. CLSTR, https://clstr.news/situations/catalonias-2025-electricity-mix