
Our approach
Securing the delivery of complex nuclear projects
Nuclear projects are entering a new phase.
Beyond safety and technical-performance issues, the real challenge is now the ability to deliver projects under control: keeping to budget, meeting schedules and reducing risks.
Recent feedback has highlighted the limits of overly fragmented approaches, where design, constructability, industrialisation and construction issues remain insufficiently integrated.
In this context, technical expertise alone is no longer enough.
The most complex projects call for an approach able to connect the right expertise, structure critical interfaces and integrate industrial constraints from the earliest project phases.
It is from this conviction that JASAA was born.

More than engineering.
JASAA draws on nearly twenty years of experience in nuclear civil engineering and structures subject to stringent safety requirements.
Its expertise notably covers:
- nuclear civil engineering
- seismic engineering and external hazards
- nuclear codes and standards
- System layout and integration
- constructability
This experience, developed on complex nuclear projects, enables JASAA to understand the governing technical challenges, construction constraints and expectations associated with each project maturity phase.
Over the course of our assignments, one observation became clear:
the critical difficulties of nuclear projects rarely stem from a single technical topic.
They often appear at the interfaces between disciplines, organisations and industrial constraints.
It is this holistic vision that led JASAA to develop an approach combining technical expertise, project understanding and the structuring of critical interfaces.
Connecting the right expertise
JASAA has progressively developed an approach based on understanding the critical interfaces between engineering and project delivery.
Its role is to:
- Identify the key technical challenges
- Understand the projects' real needs
- Mobilise the relevant expertise
- Structure effective collaboration
This approach helps bring out more robust answers to the complex challenges of new nuclear programmes.
Industrialising to deliver better
New nuclear projects also require a shift in construction methods.
Constructability, modularisation, standardisation and industrialisation are now essential levers to:
- Improve control of costs and schedules
- Better integrate the supply chain
- Prepare for large-scale deployment
- Secure project delivery.
Beyond passing trends, modularisation and industrialisation are above all tools serving delivery.

An approach built on trust
In a sector where projects span several decades, professional relationships rest above all on trust.
That is why JASAA places particular importance on:
- transparency
- intellectual honesty
- loyalty in collaboration
- the pursuit of pragmatic, lasting solutions.
These principles shape how the company supports its partners and builds its collaborations
Contributing to the future of nuclear
The nuclear sector is entering a new phase of transformation.
SMRs, project industrialisation, the drive for constructability and the emergence of new players are gradually redefining the sector's historical models.
In this context, JASAA aims to play a simple but essential role:
Helping nuclear players connect the right expertise, structure the right interfaces and secure the delivery of complex nuclear projects.