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A collaborative, multisectoral approach
To ground the initiative in the site’s operational realities, interviews and brainstorming workshops were conducted with 35 people from various departments. In total, more than a hundred actions were proposed to address about ten identified risks, such as heat waves, water stress, and storms.
Prioritized and planned in collaboration with the teams, these initiatives cover technical, human, organizational, and financial aspects. Carbone 4 has also identified “no-regret” actions that can be implemented in the short term.
Mastering the Method
The Carbone 4 Academy training program helped teams better internalize the OCARA method and highlighted the need for every stakeholder at the site to be involved at every stage of the process.
Anticipating Risks for Future Projects
Beyond adapting its existing operations, Renault Trucks is incorporating climate resilience into its design process from the outset by replacing its century-old facility in Vénissieux with a new platform in Saint-Priest. This site restructuring, which was the subject of a specific analysis by Carbone 4, ensures that the infrastructure will be equipped to handle future risks from the moment it becomes operational.

In 2022, with the entry into force of the European taxonomy, Renault Trucks must begin publishing its eligibility and alignment analyses (CA, CapEx, OpEx) with climate change mitigation and adaptation goals. At the same time, the increasing frequency and severity of extreme weather events are becoming more and more noticeable and are having operational and human impacts at its sites.
Renault Trucks aims to take action and implement a process to analyze physical risks, raise awareness among its teams, and address non-financial requirements. The ultimate goal is to develop a plan to build resilience and adapt its operations.
Following an initial macro-level risk analysis conducted in 2022, Carbone 4 carried out several initiatives to adapt the company’s French industrial sites, in accordance with the OCARA methodology:
These efforts included detailed assessments of physical climate risks and the development of adaptation plans specific to the Lyon and Blainville sites. The adaptation plan for the Bourg-en-Bresse site is currently being developed.

The study conducted in Lyon, at Renault Trucks’ historic site and headquarters, was more challenging than previous ones. This was due to the scope of the study (over 4,500 people, 140 hectares) and the diversity of its operations.
Over the course of five months, Carbone 4 worked with Renault Trucks to analyze the highest-risk hazards for the Lyon site, as well as their potential impacts on each of the site’s operations by 2055 and 2085. With the help of various stakeholders at the site, Carbone 4 then identified and prioritized the appropriate actions to be taken.
In addition, in order to be able to implement the adaptation plan independently, the company’s environmental manager completed the training “Adaptation to Physical Hazards” from the Carbone 4 Academy.
Renault Trucks’ Lyon facility now has a contingency plan structured around eight key areas, including the protection of buildings and inventory, ensuring the reliability of transportation flows, and ensuring safe working conditions.