Kozarac – Sisak

The Kozarac - Sisak DN 800/100 bar gas pipeline is a closed technological system constructed from steel pipes with a nominal diameter of DN 800 and is dimensioned in accordance with an operating pressure of 100 bar. Along its entire length, the gas pipeline is constructed as an underground installation, with the exception of the construction of overhead facilities at the sites of installation of block-exhaust stations (BIS) and gas nodes (PČ). The main gas pipeline will be laid in the area of the Sisak-Moslavina County, and it will pass through the municipality of Popovača and the town of Sisak in the corridor of the existing main gas pipelines Popovača - Sisak DN 500/50 and DN 150/50. The starting point of the main gas pipeline is located in the Kozarac II gas node (PČ). The end point of the main gas pipeline will be located in the area of the future expansion of the existing measuring-reduction station (MRS) Sisak, the future gas node (PČ) Sisak. The length of the gas pipeline will be approximately 21 km.

The planned activity in the space includes:

• construction of pipeline DN 800/100 bar including also launching/receiving scraper station (OPČS) at the location of PČ Kozarac II and launching/receiving scraper station (OPČS) at the location of the existing MRS Sisak, which will be expanded
• construction of block-exhaust station BIS Brezovica
• reconstruction of block-exhaust station BIS Topolovac (extension of surrounding area, construction of block-exhaust station)
• installation of gas pipeline cathodic protection
• construction - laying of optic cable - 2 pipes, PEHD Ø 50.

 
The works on the gas pipeline are underway, and the planned implementation period is by the end of 2026.

By putting the Bosiljevo-Sisak and Kozarac-Sisak gas pipelines (total 122 km) into operation, gas transmission capacities at the Drávaszerdahely Interconnection Point (HR-HU direction) will be increased, with the technical capacity doubling from the current 200,000 Sm³/h to 400,000 Sm³/h.

In the trial run, starting from 31 December 2026, the additional 200,000 Sm3/h will be offered exclusively as interruptible capacity.

Upon obtaining the use permit for the newly constructed pipelines, respective capacity will be doubled from current 200,000 Sm3/h and offered as firm in total capacity of 400,000 Sm3/h.

Note: Funded by the European Union - NextGenerationEU. Views and opinions expressed are solely those of the author and do not necessarily reflect the official views of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them.