SELF-CONSUMPTION 2025
Self-consumption energy
Information based on provisional data as of January 2026
The chart showing the annual evolution of national self-consumption electricity reflects very significant growth in total generation, particularly from 2022 onwards, with a clear acceleration from 2023. This underscores the rapid expansion of self-consumption.
Solar photovoltaic is the dominant technology in self-consumption, showing strong and sustained growth throughout the entire period under analysis. This trend reflects a strong commitment to this technology across the residential, industrial, and services sectors. Wind power also shows a positive trend, with steady increases over the period, although its contribution remains limited compared to solar photovoltaic. By contrast, cogeneration shows a downward trend, gradually reducing its contribution to national self-consumption. After reaching high levels in 2022, self-consumed energy from cogeneration has steadily declined in subsequent years, resulting in a reduced relative share in the face of strong growth in solar photovoltaic generation. Finally, other renewable technologies as a whole show a moderately increasing contribution up to 2024, followed by a slight stabilisation, while remaining a minor component within overall national self-consumption.
Evolution of national self-consumption electricity
Self-consumption in Spain is experiencing very significant growth, particularly in the Services sector, where self-consumed energy has tripled over the period under analysis. Industry also shows a steady and positive trend every year, although at a lower level than the Services sector. Finally, the Others category shows stable growth, albeit less pronounced than in the other industries.
Evolution of self-consumption electricity by activity sector
The share of renewable energy in total self-consumption generation has exceeded 50% in recent years, reaching values close to 75% in 2025. This is particularly relevant in terms of decarbonisation and the energy transition.
In this regard, comparing the current national renewable generation share of 55.5% with the value obtained when including renewable self-consumption increases the national renewable share by 1.1 percentage points, to 56.6% of the mix. In the Peninsular system, the renewable share would rise from 57.5% without self-consumption to 58.5% when it is included, an increase of 1 percentage point. In Islas Baleares, the increase would amount to 4 percentage points (from 13.6% to 17.6%), and in the Islas Canarias, to 1.8 percentage points (from 20.9% to 22.7%).
The most relevant aspects of self-consumption electricity by autonomous communities in 2025 include:
- Andalucía, Cataluña, and Comunidad Valenciana are the largest self-generators of electricity.
- Aragón stands out in terms of self-generated energy relative to its installed capacity, indicating higher efficiency or utilisation.
Map of self-consumption electricity by autonomous communities
Self-consumption
Installed self-consumption power capacity