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Ten Year Network Development Plan 2015
Executive Summary
This document, produced by the European Network of
Transmission System Operators for Gas (ENTSOG), is
the fourth edition of the pan-European Ten Year Net-
work Development Plan (TYNDP). To comply with the
Cost-Benefit Analysis (CBA) requirement of the TEN-E
Regulation, this TYNDP covers an extended time period
ranging from 2015 to 2035 and provides a wide ranging
view of how European gas infrastructure and supply ad-
equacy could develop over the next two decades.
The regulatory requirement on ENTSOG to publish the Union-wide TYNDP every two
years stems from the 3
rd
Energy Package. The original aims were to identify possible
investment gaps and to assess the evolution of the supply adequacy. With the entry
into force of the TEN-E Regulation in May 2013, the TYNDP has acquired a new
dimension as it is now the first step of the Project of Common Interest (PCI) process.
Every PCI candidate must submit its project to ENTSOG for inclusion in TYNDP.
ENTSOG will then apply the Cost-Benefit Analysis (CBA) methodology, which has
been developed for this TYNDP.
In order to ensure the consistency of the TYNDP and the CBA methodology, ENTSOG
has merged the two consultation processes. The main objectives were the adapta-
tion of the methodology, first published in November 2013, and the definition of the
associated data set. It also offered the opportunity to run a case-study on a sample
of projects. This consultation process represented a key step in the preparation of
the PCI assessment by ENTSOG as it was supposed to gather the knowledge of all
stakeholders. This is of particular importance for data related to supply and price
scenarios which are beyond ENTSOG remit.
The development and maintenance of gas infrastructure supports the three pillars
of the European energy policy: security of supply, competition and sustainability. It
facilitates a liquid and hence a competitive internal gas market by increasing
physical market integration. The resulting flexibility of the European gas system will
enable and enhance supply diversification and Security of Supply, even in the case
of declining indigenous production. Gas infrastructure will also play an important
role in improving sustainability in the EU by helping to meet its environmental
targets.