2024 Integrated Report

2. Strategy

Progress on sustainable solutions

  • Continued increase in the use of biofuels (B100 and HVO), from 10.5 million litres (3.5% of total fuel consumption) in 2023 to 16 million litres (5%) in 2024;
  • Roll-out of Colas Carbon Footprint, a

     tool for calculating the carbon footprint of all Colas businesses across scopes 1, 2 and 3a, taking into account the physical flows and expenditure related to the conduct of activities across multiple levels of operations;

  • Design and development of StreetAdapt, a made-to-measure climate for local communities: adaptation solution :
    • construction solutions (floors and wall coverings, water, greenery, shading solutions);
    • specialist expertise (including predicting and measuring the performance of proposed development and facilities solutions);
    • requirement-specific products and processes (Vegecol, Urbalith, Raincol, Albetop, Technosols, etc.);
  • Biodiversity-positive initiatives: assessment by an environmental engineer with targeted follow-up measures, analysis of the biodiversity impacts and dependencies of Colas and its value chain, invasive species management solutions and research;
  • Endorsement by SBTi, in November 2024, of Colas’ GHG emissions-reduction targets: a 46.5% reduction for scopes 1 and 2, and a 30% reduction for scope 3a. These targets are consistent with the Paris Agreement goal of limiting global warming to 1.5°C (the previously endorsed targets were consistent with the “well-below 2°C” level of ambition).
CLIMATE SOLUTION

Flood mitigation work on the Gier river

Colas was commissioned to divert an 800-metre stretch of the Gier, a river in south-eastern France, in order to protect local residents and property against the risk of a once-in-a-100 year flood event. The work also involved rewilding the riverbed to encourage biodiversity.

FRANCE – Hydraulic and environmental engineering : gently sloping riverbank upstream, floodplain and natural spaces to avoid disrupting beaver populations downstream, and confluence with the Couzon river to expand the Gier’s meander belt.

Greenhouse gas emissions

Mt of CO2 eq.

2022: 10.9 Mt CO₂e (adjusted data). 2023: 10.6 Mt CO₂e. 2024: 99.6 Mt CO₂e. Adjusted data.

(a) Adjusted data

Split of energy use in 2024

%

93%: Fossil energy. 4%: Renewable energy. 3%: Nuclear energy.