Installed capacity

The rest of renewables, with very diverse origins, but headed by biomass, represented 1.0% of installed generation capacity in Spain by the end of 2025

This section contains aggregated information on a group of renewable technologies of very diverse origin, which together represent 1.4% of renewable capacity and 1.0% of total installed generation capacity in Spain at the end of 2025. Four blocks can be distinguished: biomass and biogas (1,140 MW), renewable waste identified as 50% of solid urban waste (170 MW), hydro-wind, which refers to the power station installed on the island of El Hierro (11 MW), and marine hydro (5 MW).

It should be noted that the evolution in this energy mix has been constant since 2004, rising from 491 MW of power to 1,327 MW in 2025, although there have been no significant increases in these technologies since 2021.

Taking self-consumption capacity into account, total installed capacity amounts to 1,329 MW.

Annual evolution of the installed capacity of other renewables

By autonomous community, Andalucía with 456 MW is clearly the region with the most installed capacity, accounting for 34% of all installed capacity in this group of renewables. It is followed by Castilla y León, with 104 MW, and Castilla-La Mancha, with 98 MW.

Installed capacity of other renewables at December 31, 2025. National electricity system by autonomous communities

Installed capacity of other renewables by fuel type at December 31, 2025