Scheduled Isolations

IPTO with the cooperation of the relevant RSC (Regional Security Coordinator) and any other concerned party (neighbouring TSO’S, Grid Users, etc.) prepares the annual Outage Schedules for Interconnections, Unit Maintenance and Transmission System Elements of the Hellenic Transmission System, in a way that secures the country’s electrical energy supply and the reliability of System Operation.

IPTO draws up the Outage Interconnection Schedule in cooperation with neighbouring TSO’s and the relevant RSC. IPTO presents the Outage Interconnection Schedule for the current and the next calendar year within a reasonable time in order to enable the activation of long term transmission rights assignment process.

IPTO draws up a Unit Outage Schedule in order to ensure the country’s energy adequacy and the secure supply of the Hellenic Transmission System. This rolling schedule is produced in cooperation with all relevant partners who own Units that belong to IPTO’s Units Registry and is presented for the current year and for the next three years. During the Unit Outage Schedule’s design IPTO takes into account the Hellenic Transmission System’s security of supply, the forecasted interconnection state and other system elements’ state, possible load increase and producers’ proposition of their units’ maintenance schedules.

IPTO draws up a Transmission System Elements Outages schedule and coordinates the outage and maintenance of these Elements in a way that ensures reliable and uninterrupted system operation. The yearly System Elements Outage Schedule consists of the maintenance schedule for all system elements according to their operation cycle, the outage duration and the proposed time window of implementation. IPTO presents the current yearly schedule and schedules for the next two calendar years.

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Title Processes Data Type Period Covered Info From To Published
Units Maintenance Schedule Year 2025 preliminary FORWARD MARKET Unit Maintenace YEAR 01.01.2025 31.12.2025 30.11.2023 13:15
Units Maintenance Schedule Year 2024 Version1 FORWARD MARKET Unit Maintenace YEAR 01.01.2024 31.12.2024 30.11.2023 13:00
Interconnected System Maintenance Schedule 2024 Version 1 FORWARD MARKET Interconnection Maintenace YEAR 01.01.2024 31.12.2024 30.11.2023 12:35
Units Maintenance Schedule Year 2023 Version6 FORWARD MARKET Unit Maintenace YEAR 01.01.2023 31.12.2023 29.09.2023 15:10
Units Maintenance Schedule Year 2023 Version5 FORWARD MARKET Unit Maintenace YEAR 01.01.2023 31.12.2023 31.08.2023 10:20
Units Maintenance Schedule Year 2023 Version4 FORWARD MARKET Unit Maintenace YEAR 01.01.2023 31.12.2023 02.08.2023 10:55
Units Maintenance Schedule Year 2023 Version3 FORWARD MARKET Unit Maintenace YEAR 01.01.2023 31.12.2023 10.05.2023 13:40
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΥΣ ΠΤ ΣΤΕΡΕΑΣ ΕΛΛΑΔΑΣ & ΚΥΚΛΑΔΩΝ ΕΤΟΥΣ 2024 Maintenance Provisional Current Substations Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:18
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΥΣ ΠΤ ΠΕΛΟΠΟΝΝΗΣΟΥ & ΔΥΤΙΚΗΣ ΕΛΛΑΔΑΣ ΕΤΟΥΣ 2024 Maintenance Provisional Current Substations Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:17
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΥΣ ΠΤ ΚΕΝΤΡΙΚΗΣ ΕΛΛΑΔΑΣ & ΔΥΤΙΚΗΣ ΜΑΚΕΔΟΝΙΑΣ ΕΤΟΥΣ 2024 Maintenance Provisional Current Substations Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:16
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΥΣ ΠΤ ΒΟΡΕΙΑΣ ΕΛΛΑΔΑΣ ΕΤΟΥΣ 2024 Maintenance Provisional Current Substations Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:15
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΤΕΠΝΕ ΥΤ ΣΤΕΡΕΑΣ ΕΛΛΑΔΑΣ & ΚΥΚΛΑΔΩΝ ΕΤΟΥΣ 2024_ΥΠΣΚ Maintenance Provisional Protection Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:15
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΤΕΠΝΕ ΥΤ ΣΤΕΡΕΑΣ ΕΛΛΑΔΑΣ & ΚΥΚΛΑΔΩΝ ΕΤΟΥΣ 2024_ΥΠΚΡ(ΚΡΗΤΗΣ) Maintenance Provisional Protection Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:14
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΤΕΠΝΕ ΥΤ ΠΕΛΟΠΟΝΝΗΣΟΥ & ΔΥΤΙΚΗΣ ΕΛΛΑΔΑΣ 2024_ΥΠΠΔ(ΠΕΛΟΠΟΝΝΗΣΟΥ) Maintenance Provisional Protection Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:13
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΤΕΠΝΕ ΥΤ ΠΕΛΟΠΟΝΝΗΣΟΥ & ΔΥΤΙΚΗΣ ΕΛΛΑΔΑΣ 2024_ΥΠΠΔ(ΔΥΤΙΚΗΣ ΕΛΛΑΔΑΣ) Maintenance Provisional Protection Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:12
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΤΕΠΝΕ ΥΤ ΗΠΕΙΡΟΥ & ΙΟΝΙΩΝ ΝΗΣΩΝ 2024_ΥΠΗΙ Maintenance Provisional Protection Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:11
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΤΕΠΒΕ ΥΤ ΚΕΝΤΡΙΚΗΣ ΕΛΛΑΔΑΣ 2024_ΥΠΚΕ Maintenance Provisional Protection Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:10
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΤΕΠΒΕ ΥΤ ΒΟΡΕΙΑΣ ΕΛΛΑΔΑΣ & ΔΥΤΙΚΗΣ ΜΑΚΕΔΟΝΙΑΣ 2024_ΥΠΒΔ Maintenance Provisional Protection Outage Planning YEAR 01.12.2024 31.12.2024 28.03.2023 10:09
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΓΜ ΠΤ ΣΤΕΡΕΑΣ ΕΛΛΑΔΑΣ & ΚΥΚΛΑΔΩΝ ΕΤΟΥΣ 2024 Maintenance Provisional Transmission Lines Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:08
ΠΡΟΓΡΑΜΜΑ ΣΥΝΤΗΡΗΣΕΩΝ ΓΜ ΠΤ ΠΕΛΟΠΟΝΝΗΣΟΥ & ΔΥΤΙΚΗΣ ΕΛΛΑΔΑΣ 2024 Maintenance Provisional Transmission Lines Outage Planning YEAR 01.01.2024 31.12.2024 28.03.2023 10:04