Our infrastructure
Transmission Network
Excellently interconnected
Fluxys Belgium’s transmission network is excellently linked to all natural gas sources available to the European market. The system also enables gas flows in both directions with all adjacent markets. Thanks to its versatility, customers use the Belgian system both for their supplies into Belgium and for border-to-border transmission to supply other markets in Northwest Europe.
Network length |
4,000 km |
Border interconnection points |
Interconnection points with all adjacent markets: UK, France, The Netherlands, Germany and Luxemburg |
Network connection points in Belgium |
Connections with 17 Distribution System Operators Connections with 230 industrial sites and gas-fired power stations |
Compressor stations |
Berneau, Weelde, Winksele, Zelzate |
Network conversion to high-calorific gas
The gas system in Belgium consists of two separate networks: a network for high-calorific gas and a network for low-calorific gas. The latter is gas from the Groningen field in the Netherlands and exports of this low-calorific gas will progressively phase out between 2024 and 2030. Fluxys Belgium and the Distribution System Operators are therefore proactively switching end-users of low-calorific natural gas to high-calorific natural gas. Completion of the network conversion is planned for 2029.

Zeebrugge LNG Terminal
LNG gateway into Northwest-Europe and beyond
The Zeebrugge LNG terminal serves as a gateway to supply liquefied natural gas (LNG) to Northwest Europe and beyond. The facility provides for unloading large LNG vessels and keeping the LNG temporarily in storage. The LNG can be regasified and injected into the transmission network for delivery throughout Northwest Europe or loaded back onto LNG ships to supply other markets. Direct transshipments of LNG between two vessels are also possible.
Large-scale and small-scale LNG
In addition to accommodate large LNG vessels and large volumes of LNG, the Zeebrugge terminal also loads small LNG vessels and LNG trailers to serve the so-called small-scale LNG market: LNG used as an alternative fuel for vessels and trucks or as fuel for industrial customers not in the vicinity of a natural gas pipeline system.
Maximum technical capacity Throughput capacity Storage capacity Send-out capacity |
104 TWh/year 380,000m³ of LNG (4 storage tanks) 20 GWh/hour |
LNG carriers received since commissioning in 1987 |
1,600 |

Loenhout storage
Loenhout storage
At the Loenhout facility, Fluxys Belgium operates an underground gas storage plant which serves as a giant battery for the energy system. The facility has an energy storage capacity equivalent to 60,000 state-of-the-art mega Tesla battery units as the one built in Australia. Loenhout also can provide 70 times as much energy to consumers and it can do so for about 50 days, while the mega battery unit can only deliver at maximum capacity for an hour and 20 minutes.
Storage capacity |
8 TWh |
Injection capacity |
3.75 GWh/hour |
Send-out capacity |
7.25 GWh/hour |

10 year investment program
For the period 2019-2028 Fluxys Belgium is planning to roll out investment projects totalling €529 million for its transmission network, the Zeebrugge LNG terminal and the Loenhout storage facility. The investment projects aim to consolidate Belgium’s role as an international crossroads of gas flows and to maintain the country’s security of supply while keeping tariffs as competitive as possible.
Download the indicative investement programme in French or in Dutch

- Fluxys BelgiumAvenue des Arts 31, B-1040 Brussels+32 2 230 02 39