Spain's electricity demand rose 2.4% in August 2026, driven by an 11% increase in renewable generation. Solar photovoltaic led the mix for a fifth consecutive month, accounting for 29.2% of total output.
Spain’s national electricity demand rose 2.4% in August compared with the same month of the previous year, once temperature and working-day effects are stripped out. In gross terms, demand reached 23,137 GWh, up 3.7% from August 2025. Based on data available so far, self-consumption installations are estimated to have generated around 1,600 GWh during the month.
Over the first eight months of 2026, Spain recorded total electricity demand of 175,858 GWh, up 2.8% year-on-year, a figure that stands at 1.7% once adjusted for temperature and working-day effects. This trend comes amid an expansion of solar capacity observed across several European markets, exemplified by the 101 MWp solar park built by Alight and Autoliv in Finland and the solar and storage portfolio sold by Urbasolar to Corsica Sole in Réunion.
Renewable technologies increased their contribution by 11% compared with August 2025, reaching 13,640 GWh, a 53.6% share of the generation mix. Solar photovoltaic led production for a fifth consecutive month, holding a 29.2% share after generation climbed 27.5% to 7,445 GWh. The technology set a daily production record on August 5, generating 281.2 GWh in a single day.
Combined-cycle gas accounted for the second-largest share of August’s mix at 20.7%, ahead of nuclear at 18.6%, wind at 13.3% and hydropower at 6.9%. In total, 72.2% of the month’s electricity generation was carbon-free, an 8.2% increase in the volume of GWh produced without emissions. Including production data from self-consumption installations, the renewable share of Spain’s mix would reach 55.1% in August, according to available estimates.
To promote greater use of renewable generation, a total of 954 GWh was integrated into the grid in August through battery storage and pumped hydro. These flexibility mechanisms are designed to absorb surplus output from renewable technologies and limit losses of unconsumed generation.
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