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• Thales, in collaboration with the airline Amelia, and Breakthrough Energy Contrails, announces the large-scale deployment of a contrail avoidance solution, which has already been tested on the flight routes from Paris and Valladolid (Spain). Contrails are one the major challenges in the ecological transition in aviation and this initiative has helped avoid more than 20 tonnes of CO2 equivalent (CO2eq) in 2024, reducing the climate impact1 of each flight by up to 40%.
• By modifying the altitude of the planes rather than their lateral trajectory, the solution optimizes flight plans and thus limits the potential overconsumption of fuel to under 3%. Amelia plans to further expand this initiative in 2025, progressively applying it to most of its eligible flight operations, making this experiment one of the largest in the world.
• With this solution, Thales, a key player in more sustainable aviation, offers a systematic approach that can be quickly integrated by all airlines, seeking to reduce their environmental impact as of today.
Since June 2024, Thales' contrail avoidance solution has been deployed on all Paris-Valladolid flights operated by Amelia, using Embraer ERJ145 aircraft. This initiative is part of the DECOR project, supported by France's 2030 investment plan.
Contrails, the artificial clouds produced by aeroplanes, trap heat from the sun, playing a role similar to that of greenhouse gases and thus significantly contributing to global warming. The impact of contrails can represent a significant part of the total climate footprint of aviation, rivalling even that of CO2.
By integrating its solution with Amelia’s Operational Control Center (OCC) tools, Thales enables OCC operations agents to directly obtain alternative trajectories to their flight plans, combining controlled operational impact and a significant reduction in contrails.
When a significant impact of contrails is detected, the Thales solution, Flights Footprint, suggests flight alternatives that allow for a significant reduction in climate impact, with a minimum average decrease of up to 40% in the total climate impact of the flight. This flight optimization relies solely on adjustments to the aircraft's altitude, without changing their route, which helps to keep additional fuel consumption to below 3%.
Yannick Assouad, Executive Vice-President, Avionics, Thales said: “Thales' contrail avoidance solution is a first for France. It is fully aligned with Thales' strategy aiming to transform the aerospace industry towards a more environmentally-friendly future through technology, for more sustainable and responsible aviation”.
Based on proven scientific principles, this innovative solution utilizes the latest weather forecasts and the most advanced climate models provided by Breakthrough Energy Contrails to optimize the flight plan. At the end of each flight, these climate models, enriched by meteorological reanalysis data, are applied to the actual flight path of the aircraft to assess the effectiveness of avoiding contrail formation areas. Additionally, the installation of a ground camera, supplied by Reuniwatt, enables the solution's effectiveness to be validated through the direct observation of contrails, thanks to the analyses conducted in partnership with the digital services company SII.
This project has prevented an average of more than 4 tons of CO2 equivalent (CO2eq) per flight, initially affected by contrails. Amelia has decided to extend this system to eligible flights in 2025, becoming the first airline to systematically implement a contrail avoidance approach.
Adrien Chabot, Director of Sustainable Development at Amelia said: “Taking condensation trails into account allows for the analysis of the total climate impact of our operations and thus a better optimization of them. The challenge is to significantly and quickly reduce our impact on climate change by continuing the deployment of the Thales solution initiated in 2022. Today, it is probably one of the most promising approaches in terms of cost/benefit regarding climate impact.”
This solution, accessible and easily deployable, creates new horizons for all airlines, paving the way for more sustainable and responsible aviation on a global scale.
Matteo Mirolo, Head of Strategy at Breakthrough Energy Contrails said: "The impact of contrails on the climate, similar to that of CO2, is one of the major challenges of the ecological transition in aviation. We are delighted to collaborate with Thales to implement large-scale pilot avoidance campaigns, like this one done with Amelia, which are crucial when considering the eventual deployment of systematic avoidance measures."
1. Cumulative impact of CO2 and non-CO2 effects.
About Thales
Thales (thalesgroup.com) is a global leader in advanced technologies specialized in three business domains: Defence & Security, Aerospace, and Cyber & Digital.
It develops products and solutions that help make the world safer, greener and more inclusive.
The Group invests close to €4 billion a year in Research & Development, particularly in key innovation areas such as AI, cybersecurity, quantum technologies, cloud technologies and 6G.
Thales has close to 81,000 employees in 68 countries. In 2023, the Group generated sales of €18.4 billion.
About Amelia
A major player in the aviation industry in Europe and Africa since 1976, Amelia is a French aeronautics group that ensures flight operations and the monitoring and maintenance of its aircraft.
Amelia's fleet, consisting of 18 aircraft, meets the needs of its various activities, chartering on behalf of major international airlines, medical evacuations, and charter flights.
Amelia (flyamelia.com) is a member of IATA since November 2022, endorsing the wider Fly Net Zero commitment to reach net zero emissions by 2050.
Press contact: E: communication[.]flyamelia.com.
About Breakthrough Energy Contrails
Breakthrough Energy Contrails (contrails.org) is a non-profit initiative aimed at transforming contrail research into climate action.
Partnering with academic institutions, airlines, and technology companies, the team develops forecasting and flight planning tools to help airlines avoid high-impact contrail formation.
As part of the Breakthrough Energy platform, the initiative integrates technology, operations, and policy expertise to deliver scalable solutions for a clean aviation future.
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