EU, operators agree tariffs to make gas corridor more competitive

• New tariffs aligned with EU rules will be implemented starting October, with daily, monthly, quarterly, and annual capacity products available from the 2026-2027 gas year (October 2026)
• The Vertical Gas Corridor project began in 2016 with Greece, Bulgaria, Romania, and Hungary, with Ukraine and Moldova joining in 2024 to enable bidirectional gas transmission
• Existing products will be extended until October 2026 to support Ukraine's security of supply during the transitional period before full implementation of new tariff products

EU and Gas Operators Agree on Tariffs for Vertical Gas Corridor

Five natural gas grid operators from Bulgaria, Greece, Romania, Moldova, and Ukraine reached an agreement with the European Commission on March 27 to establish new tariffs for the Vertical Gas Corridor, a key pipeline route carrying gas from Greece to Ukraine. The tariffs, aligned with EU regulations, will take effect in October and aim to enhance competitiveness and diversify energy supplies across Southeastern and Central Europe.

Key Infrastructure Details:

The Vertical Gas Corridor was initially agreed upon in 2016 by Greece, Bulgaria, Romania, and Hungary to enable bidirectional gas transmission between participating countries. Ukraine and Moldova joined the initiative in 2024. Greek gas grid operator DESFA announced the agreement, describing the corridor as a "highly competitive and strategic energy artery" during a critical period for European energy security.

Implementation Timeline:

Starting with the 2026-2027 gas year (October 2026), the five operators will offer daily, monthly, quarterly, and annual capacity products for the first time. During the transitional period until October 2026, operators will request national regulatory authorities to extend existing products to support Ukraine's energy security needs.

Market Implications:

The agreement strengthens Europe's energy diversification strategy and reduces dependence on traditional supply routes. The new tariff structure is expected to improve the corridor's competitive position in regional gas markets, particularly benefiting Ukraine and Moldova during their ongoing energy security challenges. The initiative represents a significant step in European energy infrastructure integration and supply resilience.