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Operations safety, quality assurance and respect for the environment are strategic items at Eldu.

Eldu has and maintains operation systems of Quality Management, Environment, Energy, Safety and Occupational Health according to the following international standards:

– ISO 9001
– ISO 14001
– ISO 50001
– OHSAS 18001



What we make available to the client at Eldu, is our greatest asset: OUR TEAMeldu-equipo

More than 50 years’ experience working in all types of installations / facilities, has provided Eldu with technical expertise that makes us a benchmark in the sector.

Our specialist technicians are all highly qualified and in ongoing training

Our vocation to serve the client and our commitment, are values that set us above the rest.


ELDU collaborates with the most important associations in the sector, such as ANESE (Asociación de Empresas de Servicios Energéticos, Energy Service Company Association), AEE (Asociación Empresarial Eólica, Wind Energy Business Association), AEMIAT (Asociación Española de Mantenedores de Instalaciones de Alta Tensión, Spanish Association of High Voltage Installation Maintenance Firms), ITE,  amongst others.
These associations cause ELDU to contribute to the improvement and progress of the energy sector, working in the interests of clients and companies that use energy services.