Context and challenges
This client is a leading group in the energy sector. This customer has decided to reinforce a SUME(1) power substation (225 / 20 kva) in Paris with the objective of replacing the existing transformer by two new ones in order to resolve the so-called "classic N-2" constraints. This power substation will contribute to supply the first external ring in Paris (20 kV), notably during the 2024 Olympic Games. The building will be constructed in a DUA (Extremely Dense Urban Area) environment with adjoining residential buildings and 3 main constraints:
- The safety and protection of people
- Operating and maintenance constraints
- Respect of the environment
This client selected Assystem to carry out the studies and supervision of the construction of the building as part of a complete project management services contract, within a consortium of several companies.
Project scope
Intervention in all phases of the project management services contract:
- Carrying out studies: Drafting studies, Preliminary design, Detailed design, Project-Tender, Assistance for the Contracting of Works, Approval of Execution studies, Management of the Execution of the Works Contract(s), Assistance to Project Owner & Completion Guarantee
- Management and realisation of the digital mock-up (BIM under REVIT)
- Contribution to the estimate of the works budget
Additional missions:
- Geotechnical studies, retaining structures and soil injection
- Design studies of architectural elements made of earth and wood for local use in the construction of the structure
- Obtaining building permits
Technical perimeter carried by Assystem: RMN (Roads and Miscellaneous Networks), SW (Structural Work), Structure (metal & wood), High Voltage Current/Low Voltage Current, Boilermaking
key figures
The building has 7 levels: 2 basements, the ground floor, 4 floors. It will house a SUME(1) with:
- 1 transformer and their High Voltage B/ High Voltage A annex premises
- 1 room for remote controls, control and relay (Low Voltage)
- 1 social room
It also includes some special infrastructure:
- Supply and discharge of High Voltage B/ High Voltage A power supply cables
- Channels, ducts and sleeves for the internal connections and external surroundings of the station
(1) Substation Under Metallic Enclosure
Grids & project management: related project
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