HEXANA - JASAA

The client

HEXANA is developing an innovative sodium-cooled fast modular reactor concept. As part of its Preliminary Design (APS), the company sought to structure the design of the “Nuclear Buildings and Infrastructure” scope and to secure the achievement of end-of-APS objectives.

3D view of the HEXANA modular reactor site

Contributions

Owner’s engineering support for the Nuclear Buildings and Infrastructure scope;
Definition of the engineering specifications and input data;
Structuring the study sequence and managing interfaces;
Support for architectural and constructability choices;
Support for the engineering teams and partners;
Critical review and preparation of the APD phase.

Value created

Aerial 3D view of the HEXANA modular nuclear facility

JASAA helped adapt the technical ambitions to the project’s maturity, structure the interfaces between systems and secure the progress of the APS within the agreed schedule and budget objectives.

The approach delivered a design consistent with the maturity of the hosted systems, while limiting iterations and fostering an overall vision of the product.

For an equivalent result, the APS was completed with a budget and duration significantly lower than comparable SMR project benchmarks.