Our network spans a supply ring in the north-west of Lower Saxony. Between the estuaries of the Weser and Ems rivers, it connects to gas storage facilities, industrial customers, distribution networks and an LNG terminal.
Structural data
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GTG is a transmission system operator with a modern, high-quality gas network. The gas network´s specifications are shown in the following tables.
Simultaneous annual maximum load (2023):
5,901 MW, as of 12. December 2023
Annual work withdrawn by distribution companies and end customers (2023):
25,863,068,774 kWh
Number of exitpoints
| No. in the high-pressure network | 73 |
| No. in the medium-pressure network | 0 |
| No. in the low-pressure network | 0 |
Network lengths in the natural gas network: according to compression stage
| Compression stage | [km] |
|---|---|
| High-pressure network excl. domestic connection pipes | 325.0 |
| Domestic connection pipes in the high-pressure network | 0,0 |
| High-pressure network (4 to 16 bar) | 0,0 |
| High-pressure network (over 16 bar) | 325.0 |
| Medium-pressure network excl. domestic connection pipes | 0,0 |
| Domestic connection pipes in the medium-pressure network | 0,0 |
| Low-pressure network excl. domestic connection pipes | 0,0 |
| Domestic connection pipes in the low-pressure network | 0,0 |
Network lengths in the high pressure area: by pipe diameter class
| definition BNetzA | ||
|---|---|---|
| pipe diameter class | DN (mm) | length (km) |
| A | ≥ 1000 | 0,0 |
| B | 700 - <1000 | 0,0 |
| C | 500 - < 700 | 20,9 |
| D | 350 - < 500 | 255,6 |
| E | 225 - < 350 | 0,1 |
| F | 110 - < 225 | 46,7 |
| G | < 110 | 1,7 |
| total | 325.0 | |
Notes:
The reporting data for the above data is 31 December 2023.
High-pressure gas networks are more than 1 bar above atmospheric pressure.
Entry points
| Point name | Type | Upstream Grid / System Operator | Gas Quality | Caloric Value | Contractural Pressure | Technical Pressure | ||
|---|---|---|---|---|---|---|---|---|
| Pmin (bar) | Pmax (bar) | Pmin (bar) | Pmax (bar) |
|||||
| ZONE UGS EWE L-Gas (entry) (Nüttermoor/Huntorf) | MP | EWE Gasspeicher GmbH (gas storage zone) | L-Gas | 9,9 kWh/m³ | 40 | 70 | 40 | 70 |
| ZONE UGS EWE H-Gas (entry) (Nüttermoor/Huntorf) | MP | EWE Gasspeicher GmbH (gas storage zone) | H-Gas | 11,1 kWh/m³ | 40 | 70 | 40 | 70 |
| Oude Statenzijl | MP | Gasunie transport services B.V. | L-Gas | 9,7692 kWh/m³ | 58,8 | 70 | 58,8 | 70 |
Exit points
| Point name | Type | Downstream Grid / System Operator | Gas Quality | Caloric Value | Contractual Pressure | Technical Pressure | ||
|---|---|---|---|---|---|---|---|---|
| Pmin (bar) | Pmax (bar) | Pmin (bar) | Pmax (bar) |
|||||
| ZONE UGS EWE L-Gas (exit) (Nüttermoor/Huntorf) | MP | EWE Gasspeicher GmbH (Zone Anschlusspunkte Speicher) | L-Gas | 9,9 kWh/m³ | 41 | 70 | 41 | 70 |
| ZONE UGS EWE H-Gas (exit) (Nüttermoor/Huntorf) | MP | EWE Gasspeicher GmbH (Zone Anschlusspunkte Speicher) | H-Gas | 11,1 kWh/m³ | 41 | 70 | 41 | 70 |
| Endconsumer, aggregated | MP | GTG-Nord | L-Gas | - | - | - | - | - |
| Endconsumer, aggregated | MP | GTG-Nord | H-Gas | - | - | - | - | - |
Network development
Every two years, the transmission system operators jointly prepare a ten-year network development plan with the close involvement of all relevant market participants, which is submitted to the Federal Network Agency on 1 April. At European level, ENTSOG prepares the Community-wide network development plan every two years, in addition to which regional investments are planned (GRIP).
Network information
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Damage to underground pipeline systems caused by third parties is the most frequent cause of pipeline damage. Anyone planning or carrying out construction measures must be informed about the location of the supply lines.
Therefore, as a builder or commissioned company, make your enquiry free of charge on the platform of the nationwide information system for pipeline searches BIL.
Gastransport Nord GmbH is a member of BIL along with many other network operators.
