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Spain's nuclear power plants are projected to generate over 19% of the country's electricity in 2025. Electricity demand increased by 2.6%, estimated at 256 TWh, nearing pre-pandemic levels. Wind power leads generation with a 22% share, while solar PV is rapidly increasing.

Spain operates seven nuclear reactors with a capacity of 7,123 MWe and plans to phase out nuclear power by 2035, with the first reactor decommissioned in 2027. The peak demand in 2025 reached 40,070 MW, raising concerns about energy security amid rising reliance on intermittent renewables. Balancing decarbonization goals with reliable power supply is essential.