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BESS La Jara

A battery installation of 26.3 MW and 85.3 MWh in Güeñes, Bizkaia, authorised to build. Every fact below is taken from the latest act in the regional gazette of the Basque Country that states it, and every act is linked.

In the gazette

Battery power26.3 MW
Storage85.3 MWh
Hours at full power3.2
PromoterBESS Development 2, S.L.
ConfigurationStand-alone
MunicipalityGüeñes
ProvinceBizkaia
SubstationST La Jara 30 kV (I-DE)
Step reachedAuthorised to build

Every act, oldest first

PublishedWhat the act doesAuthorityAct
3 Aug 2025Authorisation to build (autorización administrativa de construcción); 26.3 MW, 85.3 MWhIndustria, Transición Energética y SostenibilidadBOPV-2025-08-3416

Each act was read in full and every figure checked against the act’s own words. Where acts differ, the latest act that authorises the installation gives the figure above. Source: the regional gazette of the Basque Country, read 26 to 27 October 2026; only facts are taken from it, and each act is linked.

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