Bulgartransgaz’ gas infrastructure consists of gas transmission network and an underground gas storage facility Chiren (Chiren UGS), connected to it.

Page-1 Rectangle Circle Circle.3 Circle.4 Circle.5 Circle.6 Circle.7 Circle.8 Circle.9 Mid-arrow Mid-arrow.15 Mid-arrow.16 Mid-arrow.17 Database UGS Chiren UGS Chiren Sheet.20 Greece Greece Sheet.21 Turkey Turkey Sheet.22 North Macedonia North Macedonia Sheet.23 Serbia Serbia Sheet.24 Romania Romania Sheet.25 BULGARIA BULGARIA Box.27 VTP BULGARIA VTP BULGARIA Sheet.26 Ruse (BG)/Giurgiu(RO) Ruse (BG)/Giurgiu(RO) Sheet.28 Negru Voda 1 (RO)/Kardam (BG) Negru Voda 1 (RO)/Kardam (BG) Sheet.29 Negru Voda 2,3 (RO)/Kardam (BG) Negru Voda 2,3 (RO)/Kardam (BG) Sheet.30 Kulata (BG)/Sidirokastron (GR) Kulata (BG)/Sidirokastron (GR) Sheet.31 Kyustendil (BG)/Zidilovo (MK) Kyustendil (BG)/Zidilovo (MK) Sheet.32 Kireevo (BG)/Zaychar (RS) Kireevo (BG)/Zaychar (RS) Sheet.33 Strandzha 2 (BG)/Malkoclar (TR) Strandzha 2 (BG)/Malkoclar (TR) Sheet.34 Strandzha (BG)/Malkoclar (TR) Strandzha (BG)/Malkoclar (TR) Dynamic connector.36 Dynamic connector.38 Dynamic connector.35 Dynamic connector.40 Dynamic connector Dynamic connector.42 Dynamic connector.43 Dynamic connector.44 Dynamic connector.45 Dynamic connector.46 Sheet.48 DESFA DESFA Sheet.49 BOTAS BOTAS Dynamic connector.39 Dynamic connector.47 Sheet.50 TAGTAS TAGTAS Sheet.51 GA-MA GA-MA Sheet.52 GASTRANS GASTRANS Dynamic connector.37 Dynamic connector.53 Dynamic connector.54 Dynamic connector.55 Sheet.56 TRANSGAZ RO_NTS TRANSGAZ RO_NTS Sheet.57 TRANSGAZ RO_NTS TRANSGAZ RO_NTS Sheet.58 TRANSGAZ RO_DTS TRANSGAZ RO_DTS Double arrowhead.60 Double arrowhead.61 Double arrowhead.62 Double arrowhead.63 Mid-arrow.59 Circle.64 Double arrowhead.65 Sheet.66 GMS Chiren GMS Chiren Sheet.67 Indigenous Production Indigenous Production Triangle Railway.76 Sheet.77 Sheet.79 Sheet.78 Sheet.80 Triangle.28 Sheet.72 Sheet.81 Sheet.82

Length of transmission system: ≈ 3276 km

Compressor stations: 11

Domestic exit points: ≈ 240

Entry points from production facilities: 2

Connection points with storage facilities: 1

Cross-border entry-exit points: 8

Bulgartransgaz' EIC code: 21X-BG-A-A0A0A-C

Bulgartransgaz' ACER code: A0001038B.BG

Negru Voda 1 (RO)/Kardam (BG) – EIC 21Z000000000159I - Entry-exit interconnection point between the networks of Bulgartransgaz and STNG TRANSGAZSA, Romania

Negru Voda 2,3 (RO)/Kardam (BG) – EIC 21Z000000000160X - Entry interconnection point between the networks of Bulgartransgaz and STNG TRANSGAZSA, Romania

Kulata (BG)/Sidirokastron (GR) – EIC 21Z000000000020C - Entry-exit interconnection point between the networks of Bulgartransgaz and DESFA, Greece

Ruse (BG)/Giurgiu (RO) – EIC 21Z0000000002798  - Entry-exit interconnection point between the networks of Bulgartransgaz and STNG TRANSGAZSA, Romania

Strandzha (BG)/Malkoclar (TR) – EIC 21Z000000000157M - Exit connection point between the networks of Bulgartransgaz and BOTAS, Turkey

Kyustendil (BG)/Zidilovo (MK) – EIC 21Z000000000137S - Exit connection point between the networks of Bulgartransgaz and GA-MA, North Macedonia

Strandzha 2 (BG)/Malkoclar (TR) – EIC 58Z-00000015-S2M - Entry connection point between the networks of Bulgartransgaz and TAGTAS, Turkey

Kireevo (BG)/Zaychar (RS) – EIC 58Z-000000007-KZ - Entry-exit connection point between the networks of Bulgartransgaz and GASTRANS, Serbia

Virtual Trading Point - VTP Bulgaria - EIC 58Z--VTPN-NAT—1

UGS Chiren, EIC 21W000000000031C 

GMS Chiren - EIC 21Z000000000349D - Entry-exit connention point between Bulgartransgaz' transmission system and UGS Chiren

Exploitation wells: 24

Comressor stations: 1

Storage capacity: ≈5 813 500 MWh

Withdrawal capacity: 5285 MWh/d ÷ 40377 MWh/d (0.5 ÷ 3.82 mcm/d at 10.57 MWh/1000m3)

Injection capacity: 5285 MWh/d ÷ 33824 MWh/d (0.5 ÷ 3.2 mcm/d at 10.57 MWh/1000m3)

Maximum withdrawal capacity in case of emergency: up to 49679 MWh/d (4.7 mcm/d at 10.57 MWh/1000m3) in case of full gas storage facility and for a time period of maximum 30 days