Going forward with several virtuous projects that have already proven effective, VINCI Construction continues to implement different solutions, each contributing to modernising its plants and enabling the business line to achieve its 2030 target. These solutions include:
- Systematically using covers on materials to limit moisture and avoid unnecessary heating. Respectively, 61% and 46% of plants had covered storage facilities for asphalt pavement and sand, compared with 56% and 44% in 2024.
- Substituting high-emission fuels, especially heavy fuel oil and pulverised lignite. More than 69% of plants moved from coal or oil burners to natural gas burners in 2025, compared with 60% in 2024.
- Replacing binder equipment systems that use thermal heating with electric-powered systems. In 2025, 66% of plants had switched to electric-powered binder equipment systems, up from 56% in 2024.
In parallel, the Edrive digital tool was rolled out at more than 80% of VINCI Construction’s industrial facilities, enabling sites to monitor energy consumption and CO2 emissions in real time. This system makes it easier to identify and implement corrective measures.
At infrastructure operated by VINCI Airports, gas- and oil-fired boilers are gradually being replaced with heat pumps, and solar farms have been installed to expand self-consumption. In 2025, Faro airport in Portugal, Belfast International in the United Kingdom and Annecy Haute-Savoie Mont-Blanc in France modernised their heating installations. At Belgrade airport in Serbia, where electricity is mainly generated from coal, a trigeneration system was installed. It enables electricity to be produced from natural gas, thus optimising the site’s energy consumption while also covering the needs of the terminal extension. The heat generated by the system is used in the winter and converted to cool the terminal in the summer. Additional local initiatives improved energy efficiency with LED relighting. The replacement rate was 77% at end-2025 for VINCI Concessions.
All of the Group’s entities are committed to reducing energy consumption levels for their buildings. In line with the energy sufficiency plan adopted by VINCI in 2022, new initiatives were launched in 2025. In Poland, a new building erected for a VINCI Construction site in 2025 featured environmental technology such as the Power Road® system, a geothermal heat pump and solar photovoltaic panels, which sustainably heat and cool the premises.
At VINCI Energies, Axians and Actemium Suisse set energy efficiency targets with the aim to reduce the carbon intensity of their buildings by 52% within three years. Following an energy performance audit of all VINCI Construction buildings in France in 2024, the Building France and Civil Engineering France divisions adopted an energy sufficiency plan in 2025. It provides for a dashboard to monitor consumption, awareness initiatives, and concrete measures to eliminate energy waste.
D. Decarbonising the energy mix
In addition to reducing their energy consumption, several entities have taken steps to decarbonise the energy they use. The Group is prioritising the installation of renewable energy production facilities for self-consumption, power purchase agreements (PPAs), renewable energy supply contracts and, as a last resort, purchases of guarantee of origin certificates. In 2025, the Group consumed 46% of electricity from renewable sources, compared with 40% in 2024 (as mentioned in paragraph 2.2.3.1, “Energy mix”, page 215).
In 2025, VINCI Concessions continued to increase solar power generation to decarbonise its electricity consumption. Several solar farms were built or are under construction, for an installed capacity of more than 75 MWp at end-2025 (47 MWp in 2024). Infrastructure commissioned in 2025 included a 4.5-hectare solar farm inaugurated at Edinburgh airport, meeting 27% of the airport’s energy needs, paired with a battery system for additional power. VINCI Construction’s sites are also increasing their solar photovoltaic production capacity, especially in Germany.
Actions to reduce emissions in the value chain
In 2025, the Group continued to implement action plans to reduce its indirect emissions in priority areas:
- decarbonising materials (E);
- decarbonising motorways (F);
- decarbonising building and infrastructure use (G);
- reducing emissions from airport users (H).
E. Decarbonising materials
Low-carbon concrete and recycled steel
Use of low-carbon concrete at VINCI Construction
The use of concrete accounts for 25% of emissions due to VINCI Construction’s purchases of goods and services. In 2020, the business line adopted a target for 90% of the concrete used to comply with a low-carbon standard by 2030, covering all the quantities for which this type of solution is technically and economically viable (see the tables showing business line commitments in paragraph 2.1, “Environmental ambition“, pages 200 to 202).
VINCI Construction is accelerating the rollout of its low-carbon, very-low-carbon and ultra-low-carbon Exegy® solutions, which reduce CO2 emissions by up to 70% while delivering the same or better resistance and durability compared with conventional concrete. In 2025, low-carbon concrete made up 32% (29% in 2024) of the total concrete used by VINCI Construction, and 63% of that used in France by the Building France and Civil Engineering France divisions (60% in 2024). This trend is growing stronger outside France, particularly in Poland, Latin America, Asia and Germany. 2025 saw several steps forward in this area: the commercial launch of a new Exegy® range of very-low-carbon sprayed concrete for structural repairs to buildings, bridges and tunnels by Freyssinet France, the rollout of a low-carbon cement grout to maintain pressure-reduction housings and, lastly, the ongoing development of a semi-industrial project to produce calcined clay in Poland. These advancements were driven by a rise in partnerships with ready-mix concrete producers, who are increasingly using low-carbon formulations, providing all worksites with easier access to these concretes. Also contributing to this progress is the wider use of e-béton on projects. This tool for digitalising concrete orders and improving carbon traceability was designed as part of the intrapreneurship programme offered through Leonard, VINCI’s innovation and foresight platform.