Transmission system
- Legend
- Border transfer station
- Compressor station
- Border transfer station abroad
- Compressor station abroad
- Transit pipeline
- Intrastate pipeline
NET4GAS operates pipelines for the international transit and national transmission of natural gas with a total length of more than 4,000 km, with nominal diameters ranging from DN 80 to DN 1400 and nominal pressures ranging from 4.0 to 8.5 MPa.
The required gas pressure in the pipelines is provided by compressor stations located at Břeclav, Kouřim, Kralice nad Oslavou, Otvice and Veselí nad Lužicí. The total installed capacity of the compressor stations is 281 MW of mechanical capacity.
Natural gas is delivered upon the entry into and exit from the Czech Republic, i.e. its volume and quality are measured with the determination of the transmitted energy contained in natural gas, at border transfer stations – between the Czech Republic and Slovakia at Lanžhot, between the Czech Republic and Germany at Hora Svaté Kateřiny, Olbernhau, Brandov, Deutschneudorf and Waidhaus. Between the Czech Republic and Poland, gas is delivered at Cieszyn on the Polish side.
| Compressor station | Břeclav | Kouřim | Kralice | Otvice | Veselí n/L |
|---|---|---|---|---|---|
| Number of turbine units | 9x 6 MW | 5x 6 MW | 5x 6 MW | 3 x 8 MW | 6 x 6 MW |
| 1x 16 MW | 2x 13 MW | 2x 13 MW | |||
| 1x 15 MW | 1x 12 MW | 1x 12 MW | |||
| Installed capacity of CS | 85 MW | 68 MW | 68 MW | 24 MW | 36 MW |
| Total installed capacity for transmission | 281 MW | ||||
Natural gas is further transferred from the transmission system via 100 transfer stations at the interface with domestic gas distribution, directly connected customers and underground gas storage facilities. The commercial metering of gas quantities is installed at all transfer stations.
For detailed information about the NET4GAS transmission system, see the Czech Ten-Year Network Development Plan in the section Development plans.