Close to the large long-distance gas pipelines RWE Gas Storage West operates in Gronau-Epe, at one of the most attractive storage locations, three facilities for different gas qualities, among them the Epe L-Gas storage. Being one of only few L-Gas storages in Germany this storage with its five caverns makes an important contribution towards security of supply. The storage facility is connected to the German transmission system of Open Grid Europe in the Trading Hub Europe (THE) market area and is also connected to the TTF trading point via the Dutch transmission system of Gasunie Transport Services B.V. (GTS).

_{WGV= working gas volume / IC= injection capacity / WC= withdrawal capacity}