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South-North Corridor GRIP 2017
8.2.2 CREATINGAREVERSECAPACITYFROMFRANCE
TO GERMANY AT OBERGAILBACH
Beyond commercial backhaul capacity already existing from France to Germany,
GRTgaz is considering physical reverse flow from France to Germany. The PCI
creating a reverse flow from France to Germany would improve access to LNG for
the German market and contribute to respond the need for additional supplies in
western Germany as a replacement for L-gas. The creation of this reverse flow
(100GWh/d) will result in reinforcing the network on the North-East pipeline between
Morelmaison and Voisines, additional compressor stations and a few adaptation of
interconnections to enable a reverse flow.
It would also require solutions to harmonise odorisation practises in France and Ger-
many, since gas is odorised upon entry on the transmission system in France and
Spain, whereas it is done upon entry on the distribution system in Germany. GRTgaz
is currently conducting feasibility studies on two types of solutions. The first solution
consists in adopting non-centralised odorisation practices. It is currently being as-
sessed technically and economically on two small scale units. An alternative solution
is also being considered, with a deodorisation plant, more suitable for intermittent
flows. The results of these two feasibility studies are expected in 2017.
This project is identified in the TYNDP 2017 as TRA-N-047.
8.2.3 REINFORCING INTERCONNECTIONS
BETWEEN FRANCE AND SPAIN
Interconnection capacities with Spain have been reinforced in 2013 and in 2015 in
both directions. 195 GWh/d have been added from Spain to France and 65GWh/d
from France to Spain.
The PCI 5.5 “Midcat” aims to reinforce the interconnections with Spain by creating
a new interconnection point, east of the Pyrenees, in order to mitigate the depend-
ence of the Iberian Peninsula on LNG and enhance market integration. Enagás,
GRTgaz and TIGF have performed together a joint technical study to identify the in-
vestments required to create firm capacities. To add 230GWh/d firm capacity from
Spain to France and 160 GWh/d from France to Spain, several developments of
French and Spanish networks have been identified amounting to roughly 3 billion €.
To enable these capacities and remove congestions that would result from south to
north flows, the project would require, in addition to new compressor power, the
following items:
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the looping of the Rhône pipeline for 220km (PCI project 5.8.2, “Eridan”)
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the looping of the East Lyonnais pipeline for 150km
(PCI project 5.8.1, “East Lyonnais”)
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the looping of the Midi pipeline for 240km
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the looping of the Beauce pipeline for 63km
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the connection to the border for 120km
A smaller set of investments, the “STEP” project (South Transit East Pyrénées), is
also being considered. It is limited to investments on Enagás and TIGF network and
would create interruptible capacities, up to 80 GWh/d from France to Spain and
120GWh/d in the other direction.
On the French side, the “Midcat” project is identified in the TYNDP 2017 as
TRA-N-256, and the “STEP” project as TRA-N-252.