Economy and Energy Minister István Kapitány said Hungary should be able to meet demand without Russian gas by October 2027, aligning with the European Union’s phase-out deadline. He said existing interconnections and alternative supply sources are expected to cover volumes needed for the market. The target represents a material change for one of Central Europe’s most Russia-dependent gas markets.
Hungary has traditionally received most Russian volumes through TurkStream and the Balkan route via Serbia. Kapitány said replacing those flows would raise the value of alternative connections involving Romania, Croatia and Slovakia. He also pointed to potential LNG arriving through Greece and moving north through Bulgaria.
Southern corridors and LNG gateway roles
The shift would affect Southeast Europe beyond Hungary’s procurement decisions, including changes to pipeline utilisation across the region. Romania is preparing for higher domestic production, while Greece has expanded its role as an LNG gateway. Bulgaria and Romania are increasingly carrying south-to-north flows towards Central Europe.
Croatia’s Krk LNG terminal and the Adria system could gain similar strategic importance as southern supply routes become more relevant. Hungary has also opened discussions over maximising use of Croatia’s Adria oil pipeline, linking the approach to reducing Russian exposure in both gas and crude. The developments point to a broader rebalancing of regional routing options.
Capacity limits shape commercial viability
The main commercial issue is whether alternative routes can deliver sufficient volume at competitive prices. Romania’s Arad-Szeged connection with Hungary has already been operating close to capacity during periods of strong northbound flows. As a result, higher Romanian production or additional Greek LNG does not automatically translate into increased Hungarian supply unless transmission capacity can accommodate it.
The same constraint applies to Croatian routes, where physical diversification depends on available capacity across cross-border links. Infrastructure can diversify supply, but pipeline tariffs, congestion and LNG pricing influence whether alternatives are commercially attractive. Hungary’s shift could strengthen the investment case for additional interconnector capacity and compressor upgrades across the region.
Implications for Serbia and regional security structure
For Serbia, the implications are particularly significant because the country sits on the main TurkStream corridor delivering Russian gas towards Hungary. If Hungarian demand for that route declines, Serbia’s strategic transit value could fall while pressure increases for Serbia to diversify supply. The regional gas market is therefore moving toward a more complex structure.
Security is no longer based primarily on one supplier and one corridor, as it increasingly depends on whether multiple sources can compete through limited cross-border infrastructure. Hungary’s October 2027 target sets a clear deadline for that transition within the regional network dynamics.
