ENTSOG South-North Corridor GRIP 2017 - Main Report

6.3.1 IN ITALY: SUPPORT TO THE NORTH-WEST MARKET AND BIDIRECTIONAL CROSS-BORDER FLOWS

The Snam Rete Gas project to support flows to the Northwestern Italian market and to create exit flow towards Griespass IP is divided in two phases: \\ The first phase of the project, denominated “Support to the North-West market” (TRA-F-213), has been finalised in 2015. The commissioning of the projects in October 2015 allowed the creation of an initial availability of flows for export from October 2015. The completion of this phase ensured exports of 5MSm³/d (around 54GWh/d) at Griespass IP from Italy to Switzerland and up to 18MSm³/d (around 191GWh/d) at Tarvisio IP from Italy to Austria. \\ The second phase of the project, defined as “Support to the North-West mar- ket and bidirectional Cross-Border flows” (TRA-F-214) continues on from the first phase and integrates the expansions to facilitate an increase in export capacity by 2018. The capacity at the exit point of Griespass will increase to up to 40MSm³/d (around 429GWh/d), or up to 22MSm³/d (around 238GWh/d) with a simultaneous exit flow at the Tarvisio exit point of up to 18MSm³/d (around 191GWh/d). The first phase, ended in 2015, consists in expanding the capacity of the line from the east to the west of the Po Valley, through the construction of pipelines in Cremo- na–Sergnano (50km – DN1200), Poggio Renatico-Cremona (149km – DN1200) and Zimella–Cervignano (172 km – DN1400) as well as a new node in Sergnano and Minerbio. It also includes upgrades to the compressor plants at Istrana and Masera, as well as work on the measurement equipment at Masera, which enables management of the exit flows at Griespass and Tarvisio IPs. The Cremona–Sergna- no pipeline and the upgrade of the compression plant in Istrana are in operation since the end of 2011. The works on the compressors and measurement equipment at Masera were commissioned in July 2013, and the Poggio Renatico-Cremona pipeline was commissioned in October 2013. The construction of the aforementioned new pipelines also allows the replacement of the existing pipelines: Minerbio–Cremona, Cremona–Sergnano, Zimella–Sergna- no and Sergnano–Cervignano, for a total extension of approximately 315km, which improves the overall transmission system and reduces potential impacts in the urbanised area of the Northern Italian regions (Emilia, Veneto and Lombardy). The construction of the Cremona-Sergnano pipeline will also connect the new storage field of Bordolano (included in ENTSOG TYNDP 2017 with the identification codes UGS-F-259 and UGS-F-1045) to the national network. The project “Support to the North-West market” was included in ENTSOG TYNDP 2015–2024 with the identification code TRA-F-213.

6.3.1.1 Support to the North-West market

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South-North Corridor GRIP 2017