The recent extension of the Vertical Gas Corridor is set to significantly improve the transport of natural gas from Greece to Ukraine, bolstering energy supply flexibility in Eastern Europe. This initiative, which remains valid until September 2026, aims to stabilize cross-border energy flows amid ongoing regional challenges.
Under the new framework, capacity auctions will be conducted on a monthly basis, typically scheduled midweek following the third Monday. These auctions are essential for ensuring reliable access to transport capacity for market participants, thereby enhancing transparency and efficiency in the regional gas market.
A pivotal component of this corridor is Route 3, which facilitates the movement of gas entering the Greek system via various channels such as the DESFA network and the Revythoussa LNG terminal. From the Nea Mesimvria entry point, gas volumes can be redirected through reverse flow along the Trans-Adriatic Pipeline (TAP), effectively supplying both the Balkans and Ukraine. This route incorporates a range of capacity products, including interruptible exit capacity and commercial reverse flow services, all coordinated through established European trading systems.
To further optimize operations within this corridor, transmission system operators have collaborated with interconnector operator ICGB and aligned their efforts with the European Commission to implement a revised tariff structure. This adjustment is intended to enhance the route’s competitiveness within the wider European gas network.
Overall, this extension is expected to maintain flexibility in regional gas supply while supporting diversification efforts across Southeastern and Eastern Europe. Such developments are crucial for reinforcing energy security in a region increasingly reliant on stable and diverse energy sources.
