• Client : STORENGY
  • Period : From 2006 to 2012
  • Country : Europe, France
  • Market : Energy, Gas & LNG Storage
  • Domain / Subdomain : Conceptual & Basic design (FEED), Engineering Procurement Construction Management Environmental Impact Assessment & Permitting EXECUTION FEASIBILITY

The underground gas storage station of St Illiers-la-Ville, located 70 km to the west of Paris, is crucial for the gas supply to the whole Paris area.

In July 2006, STORENGY asked Tractebel Engineering to perform the FEED studies for the renovation of the site.

Tractebel Engineering prepared the application for the operation and construction permits (including Environmental Impact Assessment and safety studies). We also managed the tender process for an EPC contract.

In June 2008, the owner opted for an EPCM approach to renovate the compression facilities. Tractebel Engineering was appointed as the EPCM contractor.

As part of its EPCM mission, Tractebel Engineering is responsible for:

  • Preparing the call for tenders for the long lead items, such as the electrically driven gas compressors
  • Completing the Basic design ( ‘white book’), specifying the interfaces between the various packages
  • Following up the procurement of all the supply and/or installation packages
  • Managing the contractors (both from a technical and a commercial viewpoint)
  • Cost control and planning of the whole project
  • Supervising the site works
  • Supervising the pre-commissioning and commissioning phases
  • Supervising the performance tests
  • Providing support during the handover of the installation to the operating team of St-Illiers

In 2010, Tractebel Engineering was awarded an Owner’s Engineer mission for the follow-up of the EPC contractor in charge of revamping the gas treatment facilities.

This project shall increase the overall reliability and efficiency of St-Illiers. It will also reduce the station’s carbon footprint by using electrically driven gas compressors and recycling the TEG used to dry the gas.

Moreover, Tractebel Engineering convinced STORENGY to use more economical ICL compressors.