Emergency Diesel Generators for uninterrupted nuclear safety systems

If a site loses its main power supply, critical systems (like cooling or safety circuits) must continue running. That’s where Emergency Diesel Generators (EDG) come in. We’ve developed a new generation of EDG solutions tailored to the strict requirements of major nuclear projects like EPR2 in France (European Pressurised Reactor 2) and Sizewell C in the UK.

Engineered for rapid deployment and high reliability, these systems play a critical role in ensuring the continuity of essential nuclear safety functions under extreme operating conditions.

Seismic-qualified HVAC units to secure air control in extreme conditions

In a nuclear environment, HVAC systems are vital. They ensure controlled temperatures, remove contaminants, and play a critical role in radiation containment. Our solutions are designed to meet the most demanding scenarios: seismic shocks, ageing, irradiation, even aircraft crash resistance.

At Hinkley Point C, we delivered 195 high-performance cooling units, customised for nuclear use, with thermal capacities ranging from 3 to 150 kW: all in line with the industry’s most stringent classifications. What’s invisible is often what protects most.

ESPN-certified piping systems for safe fluid transport under pressure

While piping may seem simple, in a nuclear facility, it’s anything but. Especially when operating under pressure, in sensitive environments and with strict traceability.

Through MECANUC, our dedicated entity, we deliver ESPN-certified piping systems: a European standard for pressurised nuclear equipment. Every step, from design to installation, is backed by quality systems (ISO 19443, ISO 9001) and decades of operational feedback.

Predictive maintenance tools to detect failures before they escalate

Traditional maintenance often means waiting for signs of failure. However, in the nuclear sector, delay can mean downtime, or worse. That’s why we’re deploying Maintenance 4.0: a predictive approach based on real-time data & sensors..

It allows operators to identify wear before it becomes critical, optimise intervention schedules, and reduce human exposure in controlled areas. It also supports long-term sustainability by extending the life of critical systems.

BIM and 3D scanning to ensure error-free nuclear infrastructure delivery

In a nuclear environment, every millimetre matters. As such, we use Building Information Modelling (BIM) and 3D laser scanning on major projects to improve coordination and prevent design errors that can lead to costly rework or compromise safety.

These digital tools allow us to simulate, visualise and track every aspect of a build before anything is installed on site. They facilitate coordination between teams, enhance quality control, and support regulatory traceability.

Modular pre-assembly to reduce on-site risk and downtime

Nuclear projects are complex and sites are often dense, constrained and highly regulated. Therefore, we shift as much activity as possible off-site, by pre-assembling piping systems, welded structures and heavy components in controlled environments. On projects like Doel 1 and 2 in Belgium, this strategy helped us replace steam generators safely and on time, while minimising worker exposure in active zones.

Nuclear Academies to train experts in high-stakes technical fields

Technology evolves, but people carry the responsibility. To support long-term safety and performance, we’ve built Equans Nuclear Academies to develop high-level skills in HVAC, electrical engineering, dismantling, and multi-technical services.

With 4 in-house training centres and tailored programmes co-developed with customers and institutions, we help operators build internal capabilities and secure operational excellence for the years ahead.

A unified nuclear network to deliver complex multi-country projects

Under the Equans Nuclear brand, we unite several specialised entities, including Axima, INEO, ECIA, MECANUC and others, and over 4,300 professionals across more than 20 countries.

Together, we deliver integrated solutions across the nuclear lifecycle, combining local agility with global standards. Whether for long-term maintenance contracts, large new builds, or sensitive dismantling operations, our clients benefit from a single point of contact and the strength of a trusted network.

This commitment was also reflected at the World Nuclear Exhibition 2025, where Equans Nuclear hosted a dedicated workshop: “New Products & Services: Equans Nuclear’s Response to Nuclear Safety and Performance Challenges”, highlighting integrated, field-tested solutions to help operators reinforce safety, performance and regulatory compliance across their facilities.