Investments and network development


Snam has envisaged an increase in investments to € 5.2 billion for the 2017-2021 period, up 10% compared to the previous plan’s € 4.7 billion. The investment strategy is mainly focused on the development of Italian infrastructure and its interconnection with European infrastructure.



In detail, € 4.6 billion are related to the transportation network including:

  • the development of the high pressure network in Sardinia through a joint project with SGI,
  • the connection with the TAP infrastructure that will enable the diversification of supply sources with Azeri gas increasing the flexibility and competitiveness of the system,
  • the completion of reverse-flow,
  • other non-regulated technical investments.


Moreover, investments are planned for the maintenance and replacement of 650 km of transportation network sections.

Development scenarios and strategies: regional investment plans

In the context of the regional cooperation of transmission system operators established by Article 12 of the REGULATION (EC) 715/2009*, Snam Rete Gas publishes within this section the Gas Regional Investment Plans (GRIPs) to which contributed as co-author.

* “Transmission system operators shall establish regional cooperation within the ENTSO for Gas to contribute to the tasks referred to in Article 8(1), (2) and (3). In particular, they shall publish a regional investment plan every two years, and may take investment decisions based on that regional investment plan”.


South-North corridor

2017 ENTSOG Press Release
2017 GRIP SNC Report
2014-2023 ENTSOG Press Release
2014-2023 GRIP SNC Report
2012-2021 GRIP SNC Report
2012-2021 ENTSOG Press Release


Southern corridor

2017 Entsog Press Release
2017-2026 Main Report
2017-2026 Annex A (Country Profiles)
2017-2026 Annex B (Project information)
2017-2026 Annex C (Annex data)
2014-2023 Main Report
2014-2023 Annex A (Country/TSO Profiles)
2014-2023 Annex B (Infrastructure Projects)
2014-2023 Annex C (Demand Data)
2012-2021 Main Report
2012-2021 Annex A
2012-2021 Annex B

Storage and regasification

During the 2017-2021 period, Snam will allocate 0.6 billion euro (approximately 11.5% of its total investments of 5.2 billion euro) to the upgrade of storage and re-gasification infrastructures.

The new investments in storage are specifically aimed at improving the overall security and flexibility of the gas system, with a roughly 4% increase in available storage capacity, from 12.2 billion standard cubic meters in 2017 to 12.7 billion in 2021. The investments will mainly concern an increase in the capacity at the Bordolano site and the upgrade of the Fiume Trieste facility, with the development of storage at deeper levels underground.


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24 July 2018 - 11:22 CEST