How Spain's electricity mix has changed over the last decade
Spain's 2024 electricity mix looks very different from 2014. Solar has multiplied its share and coal has nearly vanished.
This piece shows which technologies have gained and lost ground over a decade of accelerated transition.
The biggest gain was Solar fotovoltaica, up +13.87 pp between 2014 and 2024.
The biggest drop was Carbón, which lost 15.29 pp over the same period.
Evolution by technology (2014-2024)
The series show the structural shift: coal has collapsed, solar has surged and wind has remained the leading renewable source.
Technology share in electricity mix (2014-2024)
Source: REE - REData API
Direct comparison: 2014 vs 2024
The bar chart shows how much the mix has changed: which technologies grew and which retreated.
Comparison 2014 vs 2024 by technology
Source: REE - REData API
Change by technology in percentage points
| Technology | 2014 (%) | 2024 (%) | Change (pp) |
|---|---|---|---|
| Carbón | 16.44 | 1.15 | -15.29 |
| Solar fotovoltaica | 3.12 | 16.99 | +13.87 |
| Ciclo combinado | 9.44 | 13.62 | +4.18 |
| Eólica | 19.4 | 23.21 | +3.81 |
| Hidráulica | 14.89 | 13.32 | -1.57 |
| Nuclear | 20.82 | 19.96 | -0.86 |
What the data tells us
1 Solar photovoltaic has been the decade's biggest winner, rising from 3.12% to 16.99%.
2 Coal fell from 16.44% to 1.15%, nearly disappearing from the electricity mix.
3 Changes in generation do not eliminate external dependency, which remains high due to fossil fuels in other sectors.