Chief Officer of Operation, Infrastructure & Market

We inform you that, following the justified request of the producers METLEN ENERGY S.A. και ENERWAVE S.A., the Units Maintenance Schedule 2026 is updated. The updated (version 6) Units Maintenance Schedule is here. 

Due to unexpected unavailability of production units, works on the OHL 400kV HVSS MEGALOPOLI (843, 823) – HVSS ACHELLOOS (833) - HVSS DISTOMO (863), scheduled from Saturday 29/08/2026 08:00 ΕΕΤ to Sunday 06/09/2026 16:00 ΕΕΤ with previous announcement, are suspended.

Due to fault restoration works on the OHL 400kV HVSS MEGALOPOLI (843, 823) – HVSS ACHELLOOS (833) - HVSS DISTOMO (863) from Saturday 29/08/2026 08:00 ΕΕΤ to Sunday 06/09/2026 16:00 ΕΕΤ, constraints may be imposed

We inform you that following the justified request of producer DEI S.A., the annual maintenance of the Steam Turbine (ST) of LAVRIO 4 is deferred from the period 24/8 - 07/09/2026 to the period 31/08 - 14/09/2026.

We inform you that, following the justified request of the producers PPC S.A., METLEN ENERGY S.A. και HERON_ENERGY S.A., the Units Maintenance Schedule 2026 is updated. The updated (version 5) Units Maintenance Schedule is here. 

Following the warning published on IPTO’s website on 30.05.2025 (https://www.admie.gr/anakoinoseis/enimerosi/proeidopoiisi-gia-paramoni-se-etoimotita-gia-ton-pliri-periorismo-ishyos-5) and based on updated estimation, the need for increased readiness for the total limitation of the power production of the R