Masterplan of
Mediterranean Interconnections
1
Executive Summary
The present edition of the Master Plan of Mediterranean Interconnections is an update of the version issued by Med-TSO in 2022. It represents the result of close collaboration among the 20 Transmission System Operators (TSOs) of Med-TSO, who jointly assessed opportunities to enhance electrical integration across the Mediterranean region.
This updated Master Plan is one of the key deliverables of TEASIMED 2 (Towards an Efficient, Adequate, Sustainable and Interconnected MEDiterranean Power System 2), the fourth project co-funded by the European Commission to sustain regional energy development.
It includes an updated assessment of the eight interconnection projects included in the 2022 Master Plan, an expanded cluster including Jordan, Syria, now including Lebanon and an interconnection between Greece and Albania. These projects are promoted by Mediterranean TSOs from 16 different countries and five different corridors, each characterised by shared geographical features and challenges.
The projects are assessed with a 2030 time horizon in mind, based on an updated version of the long-term Inertial energy scenarios developed by Med-TSO members. These scenarios are aligned with those developed by ENTSO-E, the Association of European TSOs, in the framework of the 2024 Ten-Year Network Development Plan (TYNDP).
Figure 1: MMP 2025 Main Results
Within the framework of the Master Plan, TSOs were given the opportunity and the tools to observe possible evolutions across the entire Mediterranean Power System, identify associated system needs, and assess the benefits of interconnection projects in addressing them.
Looking at the results and the overall indicators resulting from the Master Plan, the following key considerations can be extracted:
- The implementation of the analysed interconnection projects would result in around 8 GW of additional transfer capacity and require up to €6 billion in investment. This would make a significant contribution to the economic, social, and environmental development of the Mediterranean region.
- The Master Plan provides valuable insights into projects currently under development and future interconnections undergoing preliminary assessment. Projects at various stages of development but mature enough to be in the reference grid for the year 2030, include the additional Morocco–Spain interconnection, the Albania–Greece connection, the Jordan–Palestine project, and the Great Sea Interconnector connecting Greece, Cyprus and Israel, which has secured €657 million of EU financing for the interconnection between Greece and Cyprus. Also included is the first interconnection between Italy and Tunisia, which has secured €307 million of EU financing.
- The development of new interconnection capacity enables a more efficient exploitation of complementarities among Mediterranean countries, facilitating the integration of renewable generation and the global reduction of CO₂ emissions.
- In some cases, interconnections directly contribute to reducing the isolation of specific countries and regions, drastically increasing their Security of Supply (SoS).
- The realisation of interconnections is a first step towards the broader integration of the Mediterranean region, which will require further developments to ensure the efficient operational.