Nuclear maintenance, reactor design and modification
Engineering and services of excellence for strategic projects in the nuclear industry
Onet Technologies works with its customers on highly technical projects to design, modify or maintain nuclear facilities. Our multi-expertise engineering and integrated services enable us to adapt to the needs of manufacturers and operators in the nuclear industry.
Our expertise in Grand Carénage and post-Fukushima refurbishment projects is widely recognized by our customers. As an active member of GIFEN and the industry's Excell plan, we work daily to ensure the excellence of nuclear projects and facilities.
3 levels of expertise at the service of your nuclear power plants
Design, construction and revamping of cycle plants
Onet Technologies offers innovative, controlled solutions tailored to its customers' needs, thanks to its 400 engineers with targeted expertise and the experience they have acquired through their on-site interventions.
Services are offered on a global project management or EPC (turnkey) basis, including engineering and consulting (design phases, calculations, studies, etc.) and equipment design and qualification.
Nuclear maintenance
Onet Technologies is a specialist in nuclear maintenance operations, whether on reactors or on key components of nuclear facilities. Our teams are pioneers in maintenance services for :
- Steam generators,
- Replacement of heating rods,
- Underwater work...
Our expertise is also recognized thanks to our status as a manufacturer of Nuclear Pressurized Equipment (NPE). This status enables us to carry out large-scale projects such as Emergency Heat Exchangers (EASU), and to support the supply of Steam Generators.
Nuclear power plant monitoring and inspection
We work on nuclear facilities as well as in industry, designing solutions and implementing non-destructive testing and in-service inspections.
Our NDT(Non-Destructive Testing) and NDE (Non-Destructive Examination) experts, certified to level III, develop, qualify and produce tools and processes in line with our customers' needs.
Our areas of expertise
- Civil nuclear power (nuclear power generation)
- New-generation reactors and research reactors
- Nuclear research centers
- Fuel cycle facilities
- Defense-related facilities (naval bases, etc.)
- Industry (chemicals, petrochemicals, etc.)
From engineering to commissioning of your technical projects
Design, construction and revamping of cycle plants
Engineering & Consulting
- Design: feasibility studies, general and detailed design, technical support, nuclear processes, installations, remotely operated systems, air conditioning and ventilation, electrical design, instrumentation and control.
- Calculations and modeling: stress analysis, thermal-hydraulics, finite element analysis, seismic analysis, criticality analysis, radiation protection, multiphysics, safety studies, environmental analysis, risk analysis, reconciliation of international norms and standards
Design and qualification of special equipment and subsystems
- Purchase,
- Factory-made,
- Site management,
- Mechanical assembly,
- Essays,
- Commissioning
Nuclear power plant maintenance
- Engineering and expertise (maintenance engineering, specialized tooling development, welding and pressure equipment expertise, licensing files),
- Specialized maintenance on reactors and key components of nuclear power plants,
- Modification and replacement of nuclear power plant components,
- Delegated maintenance of fuel cycle facilities,
- Underwater interventions by divers,
- Effluent treatment
Controls and inspections
- Non-Destructive Testing (NDT) and Non-Destructive Examination (NDE),
- Design and development of dedicated methods and tools,
- On-site interventions,
- UT (Ultrasonic Testing) and ECT (Eddy Current Testing) inspections, automated (Conventional, TOFD (Time Of Flight Diffraction), multi-element).
