GENERATION 2023
Installed capacity
Information based on provisional data as of January 2024
As of 31 December 2023, the Spanish electricity system's power generation capability, including both the mainland and non-mainland systems, had increased by 5.2 % compared to the previous year, reaching an all-time high with an installed power capacity of 125,620 MW.
Installed renewable power capacity in the Spanish electricity system increased by 4.6 GW in 2021 and by 6.2 GW in 2022. Additionally, the installed renewable power capacity increased by an additional 6.3 GW in 2023, which allowed installed renewable power capacity to reach 77 GW in the Spanish electricity system. This represents 61.3 % of total installed power capacity The integration of this new renewable capacity, mostly wind and solar photovoltaic, represented a significant boost in the energy transition and the fulfilment of the integration roadmap set out in Spain’s Integrated National Energy and Climate Plan (Plan Nacional Integrado de Energía y Clima [PNIEC]), with a 2030 deadline.
The electricity system in the Spanish mainland is also becoming increasingly cleaner, as there was an 8.7 % increase in installed renewable power capacity in 2023 compared to the previous year.
The 2.1 % increase in installed wind power capacity in 2023 is particularly noteworthy, making it the energy generation technology with the highest rate of installed capacity in the mainland, with a total of 30,162 MW, representing 25.2 % of all installed power capacity in the mainland electricity system.
Over the course of 2023, installed solar photovoltaic power capacity experienced the greatest increase within the mainland electricity system, adding around 5,500 MW to the generation capability. In 2023, solar photovoltaic energy, for the first time ever, became the second largest energy source, accounting for 20.8 % of the total installed capacity in the Spanish mainland (compared to 17.1 % in 2022) and surpassing combined cycle, which dropped to third place with a share of 20.5 % of the total installed generation capacity.
There were no significant fluctuations in the mainland's non-renewable power capacity in 2023.
In non-mainland systems, there was an increase of 3.2 % in installed power capacity by the end of 2023. This increase is mainly due to the 7.6 % growth in installed wind power capacity and 28.5 % in solar photovoltaic compared to 2022.
The generation capability of the Balearic Islands electricity system experienced a 4.9 % increase in installed power capacity in 2023, due to the 38.1 % increase in installed renewable power capacity. At the end of 2023, installed renewable power capacity accounted for 16.9 % of the generation capability in the Balearic Islands. Installed solar photovoltaic power capacity in the Balearic Islands increased to 333 MW from 229 MW in 2022, representing an increase of 14.9 %.
In the Canary Islands, the installed renewable power capacity increased from 827 MW to 899 MW over the last year, representing an 8.7 % increase This growth means that the installed renewable power capacity in the Canary Islands accounted for 27.3 % of total Canary Islands generation capability by the end of 2023. Specifically, the increase in installed power capacity occurred in wind power, with a growth of 7.7 %, solar photovoltaic, which increased by 10.5 %, and other renewables, by 101.2 %.
The installed solar photovoltaic capacity in the Canary Islands has grown from 212 MW in 2022 to 234 MW in 2023 and remains the sixth largest source of generation in the Canary Islands mix. On 31 December 2023, solar photovoltaic capacity represents 7.1 % of the installed capacity in the island system (6.6 % in 2022).
Installed power capacity at December 31, 2023
MW - %
Wind: Includes onshore wind and offshore wind.
Other renewables: Includes biogas, biomass, marine energy and geothermal.
Evolution of the structure of installed power capacity
Evolution of installed renewable power capacity
Evolution of installed power capacity with or without CO2 eqiv. emissions
Among the most relevant aspects of the installed power capacity for autonomous communities in 2023 include:
- In 2023, Andalusia was the third community in terms of the greatest amount of installed renewable power capacity in Spain, with a total of 11,100 MW of green power, surpassed only by Castile and Leon and Castile-La Mancha. As a result, 58.7 % of Andalusian generation capability is renewable. In 2023, Andalusia was once again the second community in terms of the greatest increase in solar photovoltaic power capacity, adding 1,170 MW of new capacity and accounting for 21.1 % of total national solar photovoltaic capacity. Therefore, solar photovoltaic energy continues to be the second technology in terms of Andalusian generation capability, reaching a share of 28.5 % (23.8 % in 2022).
- In Aragon, renewable energies now represent 77.2 % of the total installed power capacity. It was the first community in terms of the greatest increase in wind power capacity in 2023, with an increase of 211 MW, which means that wind power continues to be the leading technology in the mix for this region, accounting for 45.0 % of installed power capacity. Solar photovoltaic was the fastest growing technology in Aragon, with the addition of 551 MW in 2023, accounting for 20.6 % of the total generation capability, compared to 17.0 % in 2022.
- The installed renewable power capacity in Asturias amounted to 1,595 MW, representing 41.7 % of the total, with hydro power accounting for 21.1 % and wind power 18.3 %.
- Castile-La Mancha is the region in which the most renewable power capacity was installed in 2023, with a total of 2,121 MW of new capacity, maintaining second position in the ranking of installed renewable power capacity with 12,120 MW. Castile-La Mancha is the region with the second largest share of renewable power capacity in our country, accounting for 83.8 % of the regional mix, representing 15.7 % of total installed renewable power capacity in Spain. This increase in renewable capacity in 2023 was mainly due to the installation of 2,024 MW of solar photovoltaic capacity, the largest increase in this technology in the whole country. As a result, Castile-La Mancha became the second region in terms of installed solar photovoltaic capacity, with 6,134 MW in service, representing 24.0 % of the national total.
- Castile and Leon continued to record the highest figures for installed renewable power capacity in Spain, with 13,046 MW, representing 95.8 % of its generation capability. This community accounts for 16.9 % of all renewable power in the Spanish electricity system. Wind power, with a share of 48.8 % of the total, is the most prominent technology in the region, and solar photovoltaic energy registered the greatest increase, putting into service 454 MW of new capacity and increasing its generation capacity by 31.2 % compared to 2022.
- At the end of 2023, renewable energies in Catalonia accounted for 31.1 % of the installed power capacity in the region, with hydro and wind power accounting for 16.0 % and 11.5 %, respectively.
- At the end of the year, 82.7 % of the installed power capacity in Extremadura was renewable, compared to 80.8 % in 2022. In total, this means over 9,600 MW of green energy, representing 12.6 % of the total installed renewable power capacity in Spain.
Extremadura remains the national leader in terms of solar photovoltaic installed capacity. In 2023, 1,064 MW of new solar photovoltaic capacity was installed, ending the year with 6,410 MW in service. - In Galicia, installed renewable power capacity now totals 7,729 MW, representing 70.6 % of the entire Galician generation capability.
- The Balearic Islands experienced the greatest percentage variation in renewable power capacity, with an increase of 38.1 % over the previous year. At the end of the year, it had a total of 333 MW of installed solar photovoltaic power capacity, 45.3 % more than in 2022. As a result, renewable power capacity accounted for 16.9 % of the total Balearic Islands power generation capacity in 2023, compared to 12.8 % in 2022.
- In the Canary Islands, installed power capacity increased by 8.7 % thanks to the commissioning of 72 MW of new renewable power, made up of 46 MW of wind energy, 22 MW of solar photovoltaic energy, and 4 MW of other renewables. Therefore, green energies now account for 27.3 % of the Canary Islands generation capability.
Map of installed power capacity by autonomous communities
Structure of installed power capacity by power station type and by autonomous communities
Electricity generation
Non renewable electricity generation
Electricity generation
Total electricity generation