3.08 million megawatt hours were transported through the Greece-Bulgaria gas interconnector for the period January 1 - February 28, 2023. Since the gas pipeline was put into commercial operation on October 1, 2022, a total of 7.9 million megawatt hours have been transported through it. As of the end of February, IGB has a total of 15 registered users.

The 182-kilometer gas pipeline connects the gas transmission networks of Greece and Bulgaria at the Komotini and Stara Zagora points and is Bulgaria's direct connection to the Trans-Adriatic Gas Pipeline (TAP). The total capacity of IGB is 3 billion cubic meters per year, with 1.57 billion cubic meters already booked under long-term contracts lasting up to 25 years. Available capacity is successfully being auctioned on the European platforms PRISMA and RBP.

The quantities of natural gas transported through the interconnector from the beginning of October 2022 provide nearly 1/3 of Bulgaria's domestic consumption in the winter season. The new infrastructure creates opportunities for natural gas transportation to other neighboring countries in the region, including to Moldova and Ukraine.

IGB is the first route for diversified supplies of natural gas to Bulgaria, guaranteeing increased security of supply and diversity of sources.