Hungary-Slovenia-Italy Interconnector Gas Pipeline

From Global Energy Monitor
This article is part of the Global Fossil Infrastructure Tracker, a project of Global Energy Monitor.

Hungary-Slovenia-Italy Interconnector Gas Pipeline is a proposed pipeline in Hungary, Slovenia, and Italy.[1]


The pipeline will run from Nagykanizsa, Hungary to Tornyiszentmiklós, Hungary to Lendava, Slovenia, to Kidrievo, Slovenia, to Ajdovšina, Slovenia, to Šempeter, Slovenia, to Gorizia, Italy.[2]

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Project Details

  • Owner: FGSZ Ltd. (HU), Plinovodi, d.o.o (SI)
  • Capacity: 3.4 million cubic meters per day / 1.241 billion cubic meters per year
  • Length: 191 km[3]
  • Diameter: 1,200 mm / 47.24 inches[4]
  • Status: Proposed[3]
  • Start Year: 2025[3][5]


The pipeline has been approved as project number 6.23 on the European Commission's Projects of Common Interest (PCI) list, meaning it will receive public funding from the EU.[6][7] It is also listed in 10-year natural gas development plans for Slovenia, Hungary and Italy.[4][8][9]

According to the European Commission, "The PCI will establish a bidirectional interconnection between SI and HU gas transmission systems and with that a connection of the national gas markets. It will improve possibilities for diversification of gas sources (LNG sources from the Adriatic region and any other sources), which are available in SI and enable access to gas storages in HU for SI users. The security of supply (N-1 criteria) will be improved for the existing SI gas system as well as for the HU gas market to a certain extent. The length of the gas pipeline between Nagykanizsa (HU) and Kidrievo (SI) will be approximately 114 km [about half of the total pipeline length] and the expected maximum transmission capacity will be up to 12.86 GWh/d by 2022 and 38.1 GWh/d (3.4 mcm/d) by 2023."[1]

According to the European Network of Transmission System Operators for Gas (ENTSOG) Project-Specific Cost-Benefit Analysis for TYNDP 2020, the project is a part of the "EAST 11b" group, which also includes the Pince-Lendava-Kidričevo Gas Pipeline and the Šempeter-Vodice Gas Pipeline. The Nagykanizsa-Kozármisleny and Nagykanizsa-Tornyiszentmiklós pipeline segments (TRA-N-325) are a part of the Slovenian-Hungarian interconnector which in turn is a part of the Hungary-Slovenia-Italy Interconnector Gas Pipeline.[10]

Articles and resources


  1. 1.0 1.1 Hungary – Slovenia - Italy interconnection European Commission, accessed December 11, 2019
  2. Žlahtič, Gortnar, Šinigoj, Franc, Oton, Jan (April 4, 2018). "Bi-directional gas route Italy – Slovenia - Hungary" (PDF). Retrieved August 18, 2020.CS1 maint: multiple names: authors list (link)
  3. 3.0 3.1 3.2 "TYNDP | ENTSOG". Retrieved 2020-08-18.
  4. 4.0 4.1 Plinovodi d.o.o (November 2018). "Ten-Year Gas Transmission Network Development Plan for the 2019 - 2028 Period" (PDF). Retrieved August 19, 2020.
  5. the european network for transmission system operators for gas. "TYNDP - Annex A - Projects Tables RPJ007_NS_2020 - entsog". ENTSOG. Retrieved September 17, 2020.
  6. "TYNDP | ENTSOG". Retrieved 2020-08-18.
  7. "UNION LIST OF PROJECTS OF COMMON INTEREST" (PDF). European Commission. October 31, 2019.
  9. "Piano decennale di sviluppo della rete di trasporto del gas naturale 2020-2029" (PDF). SNAM. January 31, 2020.
  10. European Network of Transmission System Operators for Gas (November 25, 2020). "TYNDP 2020 Annex A.2 – Project Tables". ENTSOG. Retrieved December 2, 2020.

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