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BESS Lajara - AESC

A battery installation of 5 MW and 20.1 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 power5 MW
Storage20.1 MWh
Hours at full power4.0
PromoterAESC Tender I, S.L.
ConfigurationStand-alone
MunicipalityGüeñes
ProvinceBizkaia
SubstationSET La Jara
Step reachedAuthorised to build

Every act, oldest first

PublishedWhat the act doesAuthorityAct
23 Dec 2025Environmental decision; 20.1 MWhIndustria, Transición Energética y SostenibilidadBOPV-2025-12-5506
1 Jun 2026Authorisation to build (autorización administrativa de construcción); 5 MW, 20.1 MWhIndustria, Transición Energética y SostenibilidadBOPV-2026-06-2363

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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