Expert risk management and site safety

The complexity of a renewable energy production site demands meticulous organisation. At 91Ó°ÊÓ, we manage site safety through distinct phases, from civil engineering to technical commissioning. Each stage is overseen by a site manager and specialist supervisors (HSE, electrical, pipework), whose role is to ensure the installations comply with regulations before they go into operation.

Focus on critical operations: lifting and high pressure

The installation of our units involves heavy lifting operations capable of moving loads weighing several dozen tonnes. These operations are governed by rigorous lifting plans validated in advance with our contractors to guarantee mechanical stability and the protection of work areas.

Similarly, our piping systems undergo extreme hydraulic testing. To ensure our circuits are completely leak-proof, we carry out pressure tests of up to 500 bar for hydrogen, a critical phase conducted in compliance with mandatory safety distances.

Site culture: coordination and daily vigilance

Site safety is a discipline that comes to life every morning at 8.00 am during our coordination briefings. This is when we manage concurrent activities: each team shares its work areas to avoid any clashes between tasks. Physical barriers (barrier tape, barriers) and permanent signage (yellow and black paint, safety markings) serve as constant reminders of danger zones, such as service ducts or lifting areas.

Transition to operational phase: ATEX and High Voltage

As the site progresses towards its final phase, we implement safety barriers specific to the operational phase:

Electrical risk: With the site energised (up to 20,000 volts), only authorised personnel trained in lockout procedures are permitted to work on the installations.

ATEX risk: The management of explosive atmospheres is planned from the design stage to prevent any incidents related to a potential hydrogen leak.

By placing this rigour at the heart of our operations, we ensure the compliance of our infrastructure and the long-term protection of all our personnel.

A safety culture on construction sites as the foundation of our operations

The success of a green hydrogen project depends on the robustness of the safety barriers put in place right from the construction phase. From the precision of lifting operations to the strength of high-pressure systems, every critical phase is rigorously controlled to ensure a reliable infrastructure.

This operational rigour, maintained through daily coordination and constant HSE vigilance, ensures a controlled transition to operation. By placing the safety of personnel at the top of its priorities, 91Ó°ÊÓ guarantees an exemplary and secure industrial model.

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Near-Miss Management: Safeguarding green hydrogen production through prevention

To ensure industrial safety, we apply a golden rule: there is no such thing as a ‘minor’ anomaly. Whether it is a simple sharp object on the floor or an item left lying around on a worksite, every near-miss is a learning opportunity.

Every such incident is documented with a photograph and recorded in a report to determine whether a root cause analysis is required. This method enables rapid resolution: 100% of identified anomalies are addressed within hours, and 80% are resolved within the same day.

Root cause analysis: Common sense and rigour in the service of prevention

When an incident occurs, there is no room for guesswork. 91Ó°ÊÓ relies on rigorous methodologies such as root cause analysis and the ‘5 Whys’ method:

• Why did the incident occur? (The technical fact)
• Why did this failure occur? (The trigger)
• Why was it not anticipated? (The protocol in place)
• Why did the control system fail to function? (The process)
• Why did the process have this shortcoming? (The root cause)

This Root Cause Analysis process enables us to look far beyond the surface to identify the organisational, technical or human factors that help secure our hydrogen production.

All data collected is incorporated into our Single Document for the Assessment of Occupational Risks (DUERP). This approach enables us to move from reactive safety to proactive prevention, ensuring that every mistake made once becomes a safeguard for the future.

Collective intelligence and RETEX: A global safety network

91Ó°ÊÓ is a field of the future that requires constant knowledge sharing. Through our internal communication tools, plant managers and technicians share their feedback (RETEX) in real time. If a safety breach compromising our green hydrogen production is identified at one of our sites, the solution is immediately rolled out across 91Ó°ÊÓ’s entire industrial network.

Beyond our own walls, we actively collaborate with external organisations such as France Hydrogène. By drawing inspiration from global best practices and analysing feedback from our peers, we ensure our customers and partners receive an exemplary level of reliability, even with the most cutting-edge technologies.

ROC: Connected control for guaranteed safety

At 91Ó°ÊÓ, technology is the driving force behind our HSE policy. In the event of a major alert or industrial risk, we have the ROC (Remote Operations Control) at our disposal. This remote control centre allows us to monitor our plants in real time and, if necessary, order the immediate shutdown of a site remotely to ensure the safety of people and the environment.

This ability to respond quickly, combined with complete transparency towards local authorities and prefectures, makes 91Ó°ÊÓ a trusted partner for local communities. Producing clean energy is our mission; doing so with the utmost safety is our commitment to you.

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At 91Ó°ÊÓ, site supervision plays a central role in managing HSE risks and ensuring the long-term protection of people, equipment, and industrial infrastructure.

Safety Induction: The Foundation of HSE Culture

Before entering any site, a safety induction is carried out. This forms a shared foundation of knowledge and responsibility for everyone working on or visiting 91Ó°ÊÓ facilities.

The induction introduces the specific risks associated with renewable hydrogen production, the applicable safety rules, and the expected behaviours in the event of unusual situations. By making this step mandatory, 91Ó°ÊÓ ensures that everyone has the necessary knowledge to operate or move around safely, while reinforcing a shared HSE culture.

Video Surveillance: A Key Tool for Industrial Security

Site supervision also relies on appropriate technical systems. All 91Ó°ÊÓ sites are equipped with video surveillance systems, fully integrated into the overall site security strategy.

These systems help detect potential intrusions while providing real-time visibility of sensitive areas. This continuous monitoring strengthens infrastructure protection and enables rapid response in case of abnormal events, contributing to incident prevention.

Continuous Supervision to Enhance Responsiveness and Prevention

Beyond security, site supervision provides teams with a comprehensive and up-to-date overview of operations. This constant monitoring improves operational responsiveness and allows for better anticipation of risk situations.

Within this framework, the ROC (Remote Operations Centre) is primarily a human-centred structure, supported by a range of tools that enable safe, reliable, and efficient remote operation of industrial sites. It represents a major strategic asset for the company’s development, aligned with projected production volumes and future challenges.

Data gathered through supervision also feeds into a continuous improvement approach to HSE practices, based on factual insights and field feedback.

Site Security and Renewable Hydrogen: A Long-Term Commitment

In a demanding industrial environment, security relies as much on tools as on organisation and behaviour. Site supervision, combined with strict access rules, training, and awareness for all personnel, forms a cornerstone of 91Ó°ÊÓ’s HSE approach.

By embedding these requirements into the daily operation of its sites, 91Ó°ÊÓ demonstrates that the development of renewable hydrogen must go hand in hand with the highest levels of safety and rigour — an essential condition to sustainably support the growth of the sector.

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Reducing CO₂ emissions is no longer optional in the construction industry. Increasingly, project owners are incorporating strong environmental requirements into their tenders, pushing construction and civil engineering companies to find concrete solutions to decarbonise their operations—including auxiliary uses such as site compounds and small repair workshops.

These temporary installations still require energy, often in areas where connection to the electricity grid is not yet available or technically feasible. As a result, they still largely rely on conventional diesel generators.

This is precisely where and 91Ó°ÊÓ come in, offering a zero-emission (at point of use) energy solution capable of meeting these needs in a clean way—already deployed under real-world conditions.

EODev: from experimentation to industrial-scale hydrogen solutions

EODev (Energy Observer Developments) is an industrial spin-off from the Energy Observer project—the world’s first self-sufficient hydrogen-powered vessel, which travelled the globe for seven years. Building on this unique experience, the company’s mission is to industrialise clean energy solutions based on hydrogen.

The GEH2® is a hydrogen-powered generator designed to replace traditional diesel units. Quiet and free from direct CO₂ emissions and fine particles, it provides clean, reliable electricity for temporary or off-grid applications, such as construction sites.

Why green hydrogen is a game changer for worksites

On a construction site, the challenge is not just to slightly reduce emissions, but in some cases to achieve genuine zero emissions—particularly when required by the client. For committed companies such as the , there is no room for half measures: environmental consistency requires the use of hydrogen produced from renewable electricity.

For worksites requiring continuous power supply, green hydrogen offers a temporary energy solution capable of delivering low-carbon electricity with high autonomy, while meeting on-site operational constraints.

This is where 91Ó°ÊÓ comes in—a producer of green and renewable hydrogen in Europe. When used in EODev’s GEH2®, this hydrogen enables on-site electricity generation with zero emissions at the point of use and a significantly reduced carbon footprint across the entire value chain, especially compared with an equivalent diesel solution.

The result: site compounds and workshops powered by decarbonised energy, without compromising on performance.

A real-world example: a decarbonised roadworks project near Carcassonne

This solution has already been implemented on a motorway resurfacing project near Carcassonne. Over several months, both the site compound and the small repair workshop were powered by two hydrogen generators supplied by EODev and fuelled with green hydrogen provided by 91Ó°ÊÓ.

The approach is designed to be simple and safe for on-site teams. EODev delivers a turnkey solution and supports operators during installation and commissioning. The system ensures service continuity, notably through a modular architecture that allows temporary switching to battery power during hydrogen container replacement.

Meanwhile, 91Ó°ÊÓ manages logistics and provides training to teams on handling and replacing hydrogen containers. The objective is clear: enable site managers to focus on their core activities while benefiting from a decarbonised, reliable and easy-to-integrate energy solution.

A solution already deployed and ready to scale

Today, EODev is deploying its hydrogen solutions across numerous projects in France and internationally. The company is now present in more than 30 countries worldwide and continues to expand to support the energy transition across multiple sectors.

This operational presence enables valuable feedback from real-life use cases, allowing equipment to be continuously adapted to on-site realities. It also forms part of a broader acceleration in hydrogen adoption, made possible by the gradual expansion of green hydrogen production and distribution capacities by 91Ó°ÊÓ across Europe.

91Ó°ÊÓ and zero-emission worksites: a future-proof choice

Decarbonising construction sites will not happen overnight, but solutions already exist. The partnership between EODev and 91Ó°ÊÓ demonstrates that it is now possible to replace diesel generators with a clean, operational alternative tailored to real-world constraints.

For construction stakeholders, this represents an opportunity to meet new environmental requirements, strengthen their position in tenders, and actively contribute to the energy transition.

91Ó°ÊÓ is no longer a distant promise—it is already at work on construction sites, helping to decarbonise the sector today.

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Heavy industry, long-distance transport and logistics with demanding operational constraints account for a significant share of COâ‚‚ emissions and require solutions that combine performance, availability and carbon efficiency. It is precisely in these areas that hydrogen is now proving its value.

Through the combined perspectives of 91Ó°ÊÓ, a producer of renewable hydrogen, and , a pioneer in hydrogen-powered heavy goods vehicles in France, this article explores the maturity of the market, the most relevant use cases and the conditions required to accelerate the sector’s deployment.

Two complementary players at the heart of the hydrogen value chain

At 91Ó°ÊÓ, a producer and supplier of renewable hydrogen, the mission is clear: to produce low-carbon energy locally and make it accessible to mobility and industrial players. Christophe Dubruque, Director of Mobility Development, oversees these strategic applications and supports the development of hydrogen ecosystems across different regions.

For its part, Hyliko is a pioneer in hydrogen-powered heavy goods vehicles in France. Under the leadership of Ovarith Troeung, the company deploys comprehensive, turnkey hydrogen mobility solutions for heavy road transport, integrating vehicles, energy supply and services, including fleet operation and maintenance.

Hydrogen mobility is no longer a promise – it is an industrial reality

Hydrogen is often presented as a solution for the future. However, this perception no longer reflects what is happening on the ground. Hydrogen vehicles are already in commercial operation, including cars, light commercial vehicles and, above all, heavy goods vehicles.

Since 2021, 91Ó°ÊÓ has been producing and supplying renewable hydrogen on an industrial scale, making a tangible contribution to the decarbonisation of energy use. At the same time, players such as Hyliko have opened their first stations dedicated to heavy goods vehicles and are progressively deploying fleets of hydrogen-powered lorries operating in real-world conditions.

For more than a year, these trucks have been operating with levels of reliability that meet the requirements of professional transport. This technological and operational maturity sends a clear signal to decision-makers: hydrogen is now a credible solution capable of meeting everyday operational constraints.

Hydrogen and batteries: choosing the right energy for the right use

The energy transition in transport is not a matter of one technology replacing another. Battery electrification is perfectly suited to short journeys, local routes and predictable uses, offering high energy efficiency and infrastructure that is already widely available.

However, as soon as missions become more intensive or complex, hydrogen becomes a strategic ally. Greater range, rapid refuelling and high energy density are key advantages for long-distance heavy transport or for vehicles carrying energy-intensive equipment.

In reality, every truck is different. Some must power refrigeration systems, tippers, cranes or other specialised equipment with significant energy needs. In such cases, hydrogen ensures vehicle performance without compromising operational availability.

Batteries and hydrogen are therefore complementary technologies, both essential for achieving decarbonisation targets.

Renewable hydrogen and RFNBO: the key to climate credibility

The environmental value of hydrogen mobility depends above all on the origin of the hydrogen. At 91Ó°ÊÓ, hydrogen is produced by water electrolysis using renewable electricity and is certified as RFNBO (Renewable Fuel of Non-Biological Origin).

This European certification guarantees very low carbon intensity and opens access to value-creation mechanisms, notably the TIRUERT scheme (Taxe Incitative Relative à l’Utilisation de l’Énergie Renouvelable dans les Transports) in France. The certificates generated help reduce the cost of hydrogen for mobility operators, particularly at stations operated by Hyliko.

Each batch of hydrogen delivered is tracked and certified, providing essential transparency for fleets committed to credible decarbonisation pathways.

What challenges remain for hydrogen mobility?

Contrary to popular belief, neither vehicle technology, nor the availability of renewable hydrogen, nor distribution infrastructure currently represent major barrier. In France, around fifty hydrogen stations have already been deployed across the country, gradually forming an operational network.

The solutions work, users are satisfied, and the first ecosystems are already in place.

The main challenge is now strategic and political. After a phase of strong support, the hydrogen sector needs a clear and lasting signal about its role in the energy transition and industrial sovereignty. Long-term visibility is essential to secure investment and accelerate large-scale deployment.

Public policy: a decisive lever for securing the sector

At the European level, decarbonisation targets are clearly defined: greenhouse gas emissions must be reduced by 90% by 2040 compared with 1990 levels. These objectives require the gradual integration of renewable fuels and set ambitious trajectories for both industry and manufacturers.

In France, mechanisms such as the TIRUERT scheme help directly reduce the operating costs of hydrogen-powered vehicles. This represents an essential first lever to make these solutions competitive and stimulate demand.

Beyond economic mechanisms, however, the challenge is systemic. Given the scale of emissions reductions required, hydrogen makes it possible to address the most complex uses, where alternatives remain limited. The objective is not to select a single technology, but to mobilise the full range of solutions needed to achieve the transition.

Villabé: concrete proof of a functioning hydrogen ecosystem

Located south of Paris, the Villabé site is now France’s leading centre of excellence for hydrogen-powered heavy goods vehicles. Since summer 2024, fleets of hydrogen lorries have been operating there daily for major retailers and building materials distributors.

The results speak for themselves: vehicle reliability, driver satisfaction and strong commitment from contractors. Villabé demonstrates that hydrogen mobility already works on an industrial scale.

The next challenge is to replicate this model across the country by building strong partnerships between renewable hydrogen producers such as 91Ó°ÊÓ, mobility operators and public stakeholders. Only then will hydrogen be able to play its full role in decarbonising heavy transport.

From vision to action: hydrogen enters the industrial era

Hydrogen opens a new phase in decarbonisation. It is now a practical tool for decarbonising the most complex transport applications, where conventional solutions reach their limits. Feedback from the field shows that the technology is ready, ecosystems are functioning and the value created goes far beyond the environmental challenge alone.

The next step is collective. It depends on the ability to deploy these models at scale, secure investment and integrate renewable hydrogen sustainably into public decarbonisation policies. Given the magnitude of the emissions reductions required, the challenge is not to choose a single solution, but to mobilise all those capable of delivering real impact.

By structuring local supply chains, producing RFNBO-certified hydrogen and working closely with heavy transport players such as Hyliko, companies like 91Ó°ÊÓ are helping to turn climate ambitions into industrial reality. The transition in transport cannot simply be decreed — it is being built, project by project, on the ground.

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