Location Alexandroupolis, Greece
Client Gastrade S.A.
Services Commissioning, Project Management
Project Value Confidential
Hill is providing project management and commissioning services for Gastrade S.A.’s Alexandroupolis Independent Natural Gas System project. The project comprises engineering, procurement, construction, operation, and maintenance for the conversion of an existing liquified natural gas (LNG) carrier to a floating storage regasification unit (FSRU) and the construction of a mooring and pipeline system connecting the FSRU to the Greek National Natural Gas Transmission System (NNGTS). The project will create a new natural gas source for Greek and Southeastern European markets, contributing to competition, accessibility, and reduced prices for end users and bolstering Greece’s long-term energy security.
The FSRU is stationed in the Thracian Sea, approximately 17.6 km to the southwest of Alexandroupolis and approximately 5.4 nautical miles from the nearest shoreline. It will feature 4 LNG storage tanks, a total storage capacity of 153,500 cubic meters, a nominal gas send-out rate of 625,000 cubic meters per hour, and a peak gas send-out rate of up to 944,000 cubic meters per hour. This corresponds to approximately 800 million standard cubic feet per day or 8.3 billion cubic meters per year. The FSRU will include all associated pumps, piping, and regasification trains with the functionality of a combined open and closed loop intermediate fluid heating medium system. The FSRU will also include receiving facilities capable of berthing incoming LNG carriers; a boil-off gas management system; utilities and waste management systems; safety systems, including hazard detection and emergency shutdown, fire protection, and spill containment; other facilities, including a personnel transfer area; and electrical, automation, control, and communication systems. The new mooring and pipeline system will connect the FSRU to the NNGTS. The transmission pipeline has a nominal diameter of up to 30 inches and comprises a 24 KM subsea section and a 4 KM onshore section. The project is expected to conclude in 2024.
The Hill team will provide project management and supervision for the project’s commissioning activities, including pre-commissioning, mechanical completion, commissioning, and start-up. Hill’s rigorous commissioning approach will help assure the new FSRU and pipeline function as envisioned, enabling Gastrade to begin supplying gas to Greece, the Balkans, and the rest of Southeastern Europe with more confidence.