In 2011, two caverns in the ground – former salt mines – beneath Epe in Germany were taken into use for storing natural gas, under the name Eneco Gasspeicher. When gas prices are low, gas is withdrawn from the Dutch transmission grid (GTS) and stored; when more gas is needed, or if prices go up again, the stored gas is injected back into the grid.
The natural gas is stored in a salt layer approximately 1200 metres below the surface. The two underground caverns that Eneco Gasspeicher operates – leftovers from salt mining operations – can hold some 100 million m3 of natural gas. The gas is injected into the caverns using a compressor station, at a pressure of 200 bar. When the gas is needed, it can be injected back into the grid at 60 bar.
Available gas supply, additions and withdrawals
Click below to see the available gas supply at our Eneco Gasspeicher storage facilities, and how much has been added and withdrawn. The injection capacities of Eneco’s gas storage facilities are 200,000 Nm3 and 400,000 Nm3 of gas per hour. The information is updated daily at 7a.m. Further details are published in Dataport on the Gasunie Transport Services website.
Safety comes first. Eneco Gasspeicher ensures safety through compliance with Germany’s Bergrecht mining laws and the Seveso III Directive. A management system has been used to map out every possible risk and record risk scenarios and controls to ensure maximum safety.