In a significant development for regional energy security, gas transmission system operators from Bulgaria, Greece, Romania, Moldova, and Ukraine have finalized a new tariff structure in collaboration with the European Commission. This initiative aims to bolster the commercial viability of the Vertical Gas Corridor, a strategic gas route facilitating flows from southern to Central and Southeast Europe.
The revised tariff model, set to be implemented in October, aligns with European Union regulations and is expected to enhance the corridor’s competitiveness. Originally established in 2016 by Greece, Bulgaria, Romania, and Hungary, the corridor was designed to support bidirectional gas transmission. Moldova and Ukraine’s participation since 2024 has further solidified its role as a vital alternative supply route within the regional energy landscape.
Under the new commercial framework, operators will introduce a broader array of capacity booking products, allowing market participants to reserve transport capacity on a daily, monthly, quarterly, and annual basis. This flexibility is anticipated to benefit traders and suppliers significantly, enhancing market dynamics.
The new tariff design is particularly relevant as Europe seeks to diversify its supply routes while mitigating geopolitical risks associated with energy dependency. Officials indicate that this enhanced structure will foster greater market participation and optimize infrastructure utilization across the region.
To facilitate a smooth transition to the new system, existing transport products will remain available until October 2026, pending approval from national regulators. This measure is crucial for maintaining Ukraine’s supply security during the implementation phase of the updated tariff structure.
This agreement underscores Europe’s ongoing commitment to strengthening its south-to-north gas infrastructure, expanding access to diverse energy sources. The Vertical Gas Corridor is increasingly recognized as an integral component of the continent’s evolving gas architecture and long-term energy strategy.










