System resilience and international interconnections among the priorities of TYNDP 2023-2032

The new TYNDP of IPTO is open for public consultation

Important new projects that shield the resilience of the National Transmission System and strengthen domestic and international electrical interconnections, are included in the Preliminary Plan of the Ten-Year Network Development Plan 2023-2032 of the Independent Electricity Transmission Operator, which has now been made public. With the new TYNDP 2023-2032, with a total budget of 4 billion Euros, IPTO is dynamically continuing its investment program, which has a forward-looking plan, as more than half of the funds will be invested by 2026.

Strategical upgrade of international interconnection projects

  • The ten-year plan 2023-2032 of IPTO mentions for the first time the interconnection Greece - Egypt. In the next period, it is planned to develop closer cooperation for this key project, between IPTO and the Transmission System Operator of Egypt.
  • The planned new interconnection Greece - Italy is in the phase of elaboration of feasibility studies. Upon the completion of the studies in the coming period, IPTO and TERNA will jointly decide on the most appropriate techno-economic solution for the implementation of the second interconnection between the two countries, which is planned to be included in the Final TYNDP Plan 2023-2032 at the end of March 2022.
  • The tender for the interconnection of Greece - Bulgaria is in full swing and is expected to be completed in January 2022. The budget for the Greek part of the project is close to 10 million euros, while the project has a construction completion horizon in the second half of 2022. new interconnection, the transport capacity at the border of the two countries is significantly increased and is expected to reach 800 MW for the direction from Greece to Bulgaria and to 1,350 MW for the direction from Bulgaria to Greece.
  • IPTO has initiated the procedures for the study of a new Greek-Albanian interconnection and at this stage a working group is being set up for this purpose jointly with the System Administrator of Albania.

Acceleration of the Transmission System modernization with state-of-the-art technologies

Enhancing the security and reliability of the National Transmission System is emerging as one of the central pillars of IPTO's medium-term strategic planning. Most of the new projects of TYNDP 2023-2032 aim at the introduction of state-of-the-art technological equipment in critical electrical infrastructure of the country, through the upgrade of the existing Assets Renewal Program, whose budget is expanded from 80 million euros to 200 million euros.

  • New upgrade projects for Crete’s Transmission System

An important new project of IPTO that will shield the security and reliability of the system of Crete in conditions of increased RES penetration, is the installation of a new AC Chopper system. The project budget, which is expected to be completed in 2024, is estimated at 20m euros.

Also in Crete, the cable connection of the new Chania II Substation is underway and at the closure of the Kastelli-Chania loop, with the construction of a new 150 kV Substation in Kantanos and two new 150 kV Transmission Lines Kasteli-Kantanos and Chania-Kantanos.

  • Renewal of critical infrastructure is being renewed in Northern and Western Greece

TYNDP 2023-2032 envisages new projects for the replacement of obsolete equipment in Substations and High Voltage Centers in Northern and Western Greece, further strengthening the resilience of the operation of ESMIE. Specifically, new upgrade projects will be implemented at the Melitis, Amyntaio, Agios Dimitrios and Arachthos substations, as well as at the South Pedio Mine Substation, allowing the safer distribution of RES production. At the same time, a new project for the replacement of obsolete cables is being launched in areas of Thessaloniki, with cable lines of modern technology.

Advancement of island interconnection large-scale projects

  • The emblematic project of the Crete - Attica interconnection implemented by the IPTO subsidiary Ariadne Interconnection is progressing rapidly, with a horizon of completion in 2024. The project, with a total budget exceeding 1 billion euros, will connect West Attica Heraklion, Crete with electrical cables 340 km long, high voltage 500 kV and total power 1,000 MW.
  • At the starting line is the fourth and last phase of the interconnection of the Cyclades, with which Santorini, Folegandros, Milos and Serifos to be connected to the mainland with cables with a total length of 350 km. The project has a total budget of 410 million. and co-financed by the Recovery Fund with EUR 165 million. The construction phase for the first part of the project, which concerns the Santorini-Naxos interconnection, is expected to start in the next period and to be completed in 2023. At the beginning of 2022, the competitions for the three other islands of the southwestern Cyclades will be held, which will be interconnected with Attica via Lavrio, a year later, in 2024.
  • By the end of the decade, IPTO will connect the Dodecanese and the islands of the Northeast Aegean, as part of a new investment cycle, with a total budget of 2.35 billion euros. According to TYNDP 2023-2032, the first phase, with a horizon of completion in 2027, provides for the interconnection of Kos and Rhodes with the mainland, through Corinth, as well as the interconnection of Lemnos-Lesvos, through Eastern Thrace. The second phase, with a horizon of completion in 2028, envisages the interconnections of Skyros-Evia, Lesvos-Chios, Kos-Samos and Rhodes-Karpathos, while the project is completed in 2029 with the interconnections of Lesvos-Skyros and Chios-Samos.
  • In the summer of 2022, the interconnection of Skiathos with the mainland system, through Evia, is completed in the context of an investment of 57 million euros. This project will ensure the smooth electrification of the archipelago of the Northern Sporades.
  • IPTO's investment program for the Ionian Islands envisages projects amounting to approximately 100 million euros by 2025, aiming at their safe supply by the Land System. The planned projects include the replacement of the cable connection Kyllini-Zakynthos, the upgrade of the interconnection Lefkada-Kefalonia as well as a new interconnection between Igoumenitsa and Corfu.

The Chairman and CEO of IPTO, Mr. Manos Manousakis, stated in this regard: "IPTO, with the updated Ten-Year Development Programs that it prepares every year, proves its high adaptability to the great challenges of the time and its vision for a sustainable energy future. In the last four years we have completed critical strategic investments of over 1.1 billion euros. In 2021, thanks to the tireless efforts of all our people, we took the first decisive step to lift the energy isolation of Crete, completing the interconnection of the island with the Peloponnese and achieving significant progress in the "great" interconnection with Attica. And we go on. With the new projects that we have included in our investment program 2023-2032, we are technologically upgrading the ‘backbone’ of the Transmission System and we are integrating more and more of our infrastructures in the digital age. In addition, through the international interconnections that we launch to each side of the border, we are actively contributing to the deepening of the single electricity market and regional energy cooperation. The Operator will continue to guarantee the stability and resilience of the Transmission System, despite the severity of the climate crisis, while acting as a catalyst for a fair energy transformation ".