Reduce your emissions on the ground and improve your operational performance with Waltr data.
Without reliable and usable data, emissions from APUs (Auxiliary Power Units) and main engines during taxiing remain underestimated. This lack of information undermines the compliance of airports and airlines with the Corporate Sustainability Reporting Directive (CSRD) and prevents rapid corrective action.
The use of APUs on the ground accounts for around 20% of greenhouse gas emissions at airports, making it a key lever to measure and control in order to accelerate decarbonization.
>50%
CO2 emissions from an airport come from aircraft on the ground¹
40%
NOx emissions from an airport come from aircraft on the ground.
Up to 52%
APU-related emissions can be reduced with the Waltr³ solution.
Our airport solution
Waltr is rolling out "Aircraft Emission Tracker," a smart solution that continuously monitors engine use, from landing to parking and takeoff. Connected to a real-time personalized alert system, it informs pilots and handlers to reduce engine use.By accurately measuring associated emissions, Aircraft Emission Tracker helps airports and airlines reduce their environmental footprint and noise pollution, improving the health and working conditions of ground crews. The solution also improves the quality of life for people living near the airport.
Our approach is based on the widespread use of N-1 engine taxiing and reducing the use of APUs at the parking stand, in line with observed practices and your ambitions. We transform measured potential into auditable results.The data provided also helpsoptimize ground operations such as turnaround management, safety, and compliance at your airport.
The Waltr Approach: Understand, Engage, and Succeed
Thanks to our change management service and our dedicated team, your project combines technology and human dynamics. At Waltr, we firmly believe that people must be at the heart of your project to ensure its successful implementation and success.
Reducing resistance to change
By combining transparency, active listening, and stakeholder involvement from the outset, resistance diminishes and is replaced by gradual acceptance.
Enhanced commitment and motivation
The involvement of the various stakeholders, teamwork, and quick wins stimulate everyone's commitment.
Facilitating deployment and reducing the risk of failure
The involvement and commitment of the teams, as well as a clear action plan, streamline the implementation of the project and ensure its successful rollout.
Aligning practices with tools
Increased strategic and operational performance.
01
Targeted pre-diagnosis
This phase clarifies your needs and expectations, sets out objectives, and reveals the initial areas for action to be explored in greater depth. We analyze the social and organizational context alongside interviews tailored to your situation.
02
Comprehensive in-depth diagnosis
We conduct individual and group interviews to understand behaviors, perceptions, and social mechanisms. Our expertise enables us to identify obstacles and levers to facilitate change. Following this analysis, we deliver tailored recommendations and action plans.
03
Implementation, monitoring, and impact measurement
We support you in implementing solutions and measure the impact of recommendations to ensure that change is understood, smooth, and sustainable.
At each stage, we provide you with a detailed and confidential report on our analysis and recommendations for solutions to be implemented.
Reduce your fuel consumption and ground operation time
If the N-1 engine remains underutilized despite its proven benefits, another source of savings is still underused and yet within reach: limiting the use of the APU, which reduces fuel consumption and maintenance costs.
Our airline solution
Waltr's patented imager and Aircraft Emission Tracker solution detect and quantify engine and APU usage in real time. Contextualized alerts guide pilots to shut down the APU at the right time and in line with ground resources. For handlers, the data transmitted enables them to optimize their ground operations and reduce turnaround time.We also provide auditable data per rotation to objectively measure fuel savings and reduce pollutant emissions.
~$1.2 million
fuel savings per year³
~176 lbs
fuel savings per rotation⁴
255 kgCO2 eq
savings achievable per rotation⁴
They trust us
François Janin
Head of Environmental Studies & Community Relations at Nice Côte d’Azur Airport
“We have been using the Aircraft Emission Tracker solution from our partner Waltr for over a year. This innovative initiative allows us to better understand and measure the use of aircraft auxiliary engines, but also to foster collaborative efforts to improve operational efficiency with a view to reducing these emissions. We are very happy and satisfied with this technology and with working with the Waltr teams.”
Why choose Waltr?
Decarbonization
Reduces environmental footprint by limiting the impact of APU and N-1 engine emissions.
QVCT
Improves the quality of life and working conditions for ground crews.
Noise reduction
Reduction of engine noise pollution to improve quality of life and communication with airport neighbors.
Electrification
Maximizes the adoption of PCAs and 400Hz for increased use of available ground equipment.
Fluidity
Optimizes ground operations by streamlining the organization and execution of certain tasks.
Valuation
Revalues airport fees based on objective indicators.
Traceability
Contributes to ESG (Environmental, Social, and Governance) reporting and Carbon Assessment initiatives.
Compliance
Evaluates regulatory compliance and facilitates monitoring of applicable requirements.
Fuel economy
Reduces jet fuel consumption for airlines.
Explore our use cases in the airport sector
¹ Heathrow Airport Airfield Emission Inventory 2022, p24-25,41-42, year 2019.
Airfield Emissions include Aircraft and APU in the Landing Take-Off cycle (LTO cycle), Ground Support Equipment (GSE) and Stationary sources (heating plant and fire training ground). Airfield Emissions exclude the airport car parks and landside road network.
² Heathrow Sustainability Report 2024, p. 108, year 2019
³ Waltr report based on information collected from partner airports.
⁴Waltr report – Based on the following information: 2 years of measurements at 10 parking lots at 3 different French airports.