GAS QUALITY REQUIREMENTS
Natural gas quality indicators
Harmonised Contract for Access and Transport together with the General Terms and Conditions thereto (point 4, page 5 from the General Terms and Conditions)
WOBBE INDEX AND GROSS CALORIFIC VALUE
WI & GCV - Daily values
WI & GCV - Hourly values
WI & GCV - Historical data
REPRESENTATIVE CALORIFIC VALUE
Methodology on converting measured natural gas quantities from volume units into energy units
Representative calorific value for the gas year 2024-2025
Representative calorific value for the gas year 2023-2024
Representative calorific value for the gas year 2022-2023
Representative calorific value for the gas year 2021-2022
Representative calorific value for the gas year 2020-2021
Representative calorific value for the gas year 2019-2020
Representative calorific value for the gas year 2018-2019
Representative calorific value for the gas year 2017-2018
GAS QUALITY CERTIFICATE FOR ENTRY POINTS
IP Strandzha2 (BG)/Malkoclar (TR)
DAILY GAS QUALITY CERTIFICATE OF ENTRY POINTS
IP Strandzha 2(BG)/Malkoclar (TR) (xls) / IP Kulata (BG) / Sidirokastron (GR) (xls) /
DAILY GAS QUALITY CERTIFICATE OF EXIT POINTS BY ZONES*
Zone-1-Varna (xls) / Zone-2-Bourgas (xls) / Zone-3-St.Zag/Plovdiv (xls) / Zone-4-Sofia1/Pazardzhik (xls) / Zone-5-Sofia2,3,4 (xls) / Zone-6-Botevgrad (xls) / Zone-7-Vratsa-Montana (xls) / Zone-8-Pleven (xls) / Zone-9-Rousse (xls) / Zone-10-SW.Bulgaria (xls) /
* Note: Defined are permanent zones of points, which are formed by the quality properties of the natural gas from one or more delivery points, so that their scope depends on the operational regime of the gas transmission system.