Managing the constructability of EPRs, in France and internationally, involves a detailed analysis of technical standards and the planning of complex projects. Our teams intervene to reduce risks and control deadlines and costs.
2023 - Ongoing
France
Nuclear
Edvance
In order to support future EPR reactors, both in France and internationally, it is essential to define a construction strategy adapted to each site and in accordance with regulations. HPC, SZC and EPR1200 projects cause changes in the BTRs (Reactor Work Papers) and BTS (System Work Papers): with each new index revision, discrepancies may appear, impacting the technical framework and potentially the duration and cost of implementation.
In this context, the classification of norms and standards is becoming a crucial issue. It makes it possible to prioritize changes according to their effect on the schedule and budget, while guaranteeing the required security. In addition, the implementation of precise planning and the formalization of activities (preparation of schedules, Bill of Quantities, position notes) are essential prerequisites. For Penly and Gravelines (EPR2 projects), the T0+12 month window requires rigorous planning and structured organization in order to stay on track. Finally, the drafting of technical specifications (DCE) and the construction methods document — detailing the interface between metal structures, equipment, pipes and cable trays in the HRB zone — are all key steps to ensure construction without major conflicts. This global approach makes it possible to provide effective technical support to teams, whether they are in Paris or Lyon.
The contracting authority expects support to analyze the impact of increasing indices on BTR/BTS, classify the standards according to their effect on cost and schedule, and prepare for the construction phase on several sites (Penly, Gravelines, as well as for export). The client aims in particular to write reliable schedules, the production of BOQ (Bill of Quantities) and the establishment of position notes. At the same time, it is necessary to consolidate the technical specifications (DCE) and ensure the follow-up of method statements for the reactor building (HRB).
Anticipate technical differences related to index revisions for each EPR project.
Establish schedules integrating costs, deadlines and security constraints.
Formalize normative standards and align construction with local requirements.
Our intervention combines technical analysis, planning and interdisciplinary coordination. After evaluating the BTR/BTS for HPC, SZC, EPR1200, we define a system for classifying standards, taking into account the impact on budget and deadlines. We also draft key documents (DCE, position notes, BOQ) and provide technical support to the teams in Paris and Lyon, in particular for the construction methods document relating to the interfaces between metal structures, pipes, pipes, equipment and cable trays in the HRB zone. The objective: to guarantee smooth construction and to control risks throughout the project.
Continuously analyze the evolution of BTR/BTS to anticipate major changes.
Produce schedules, BOQ and contractual documents to secure the work phase.
Coordinate multiple teams (Paris/Lyon) and ensure overall technical coherence.