TIGF’s storage operations are described as “negotiated”. The operator determines their own marketing policy, which satisfies the principles of transparency and non-discrimination in order to allow the development of competition between natural gas suppliers.
Decree n° 2006-1034 of 21 August 2006, regarding access to underground natural gas storage, sets the conditions for the use of storage capacities. They have been established with regard for the safety, environmental and technical constraints specific to that kind of installation.
The use of storage is aimed in the first instance for natural gas transport grid managers and the storage operators themselves. The remaining capacities are then allocated to shippers supplying end customers and then, in decreasing order of priority, to domestic customers, customers providing services in the general interest, etc...
Once the needs of priority customers have been satisfied, the excess capacities are made available to the market.