The Hellenic Gas Transmission System Operator (DESFA) S.A. is responsible for the operation, management, utilisation, and development of the National Natural Gas System and its interconnections, in a technically sound and economically efficient way, in order to best serve its Users with safety, reliability, and adequacy.

Contributing decisively to the security of supply and the diversification of supply sources of the wider region, DESFA also facilitates the development of competition in the energy market, while systematically striving for the reduction of greenhouse gas emissions.

Possessing extensive experience and having a highly skilled staff, DESFA is a reliable partner in the framework of the ongoing international energy projects in South-eastern Europe.

Services:

• Natural Gas Transmission Systems
• Natural Gas System Development
• LNGI Operation and Maintenance
• Supplementary Natural Gas Transmission Services

DESFA is actively developing its gas infrastructure to support the transport of hydrogen, including pipelines certified for up to 100% hydrogen. It is leading the APOLLOCO₂ project - building a CO₂ liquefaction, storage, and export terminal on Revithoussa Island, turning the existing LNG terminal into a hybrid CO₂/LNG facility. DESFA has secured EU funding to build a 35km CO₂ pipeline, initially capable of transporting approximately 3 million tonnes of CO₂ per year (expandable to 5 million tonnes). DESFA is engaging in strategic partnerships on CCUS (carbon capture, utilization & storage) - for example with Egypt's EGAS and GASCO -  to jointly develop hydrogen and CCUS infrastructure. In its ESG strategy, DESFA is evaluating how to convert parts of its network for renewable gases, and assesses its infrastructure's readiness for hydrogen and carbon storage.