Teréga operates two underground natural gas storage facilities, at our Lussagnet (Landes – 40) and Izaute (Gers – 32) sites. They help supply natural gas to the transport and distribution grids in the far southwest, as well as part of Spain and the rest of France. In 2015, these two structures accounted for roughly 24% of French underground natural gas
The Lussagnet storage site began operating in 1957, at the same time as the Lacq gas field (Pyrénées-Atlantiques – 64) came on stream. It was intended at that time to regulate the production of natural gas from the Lacq plant.
The Izaute storage site, located roughly 10 km from the Lussagnet site, was brought into service in the early 1980s to keep up with the increasing demand for natural gas.