Fuel Conservation Measures
Expanding routes and services will gradually increase fuel consumption. EVA Air has established analytical dashboards based on flight operations big data and trained data analysts to stay on top of opportunities seen in the data for fuel and carbon emission reduction. We have also developed and implemented feasible fuel-saving and carbon emission reduction strategies in response to environmental changes; these are then gradually integrated as part of our daily SOPs. Each fuel-saving and carbon emission reduction measure’s performance is assessed in accordance with its specific implementation operations, to accurately determine actual saving. Eight major fuel-saving and carbon emission reduction measures were taken in 2023, resulting in 13,224 tons of fuel savings, equivalent to 154 MWh energy units and 41,787 tons of CO2e emissions.
| Fleet modernization |
- Stay on top of aircraft manufacturing technology; introduce next generation fuel efficient aircraft to replace old ones.
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| Aircraft weight reduction |
- Promote digitizing in-flight service items, such as replacing newspapers and magazines with the EVA e-Library, and providing flight crews with electronic flight bag (EFB) that contain all necessary flight manuals and documents.
- Without affecting quality of service, adjust amounts of water and service supplies on board in accordance with each flight’s estimated number of passengers.
- Use light-weight aluminum containers.
- When purchasing new aircraft or repainting existing liveries, the layer of mica paint is not applied to reduce aircraft weight.
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| Improvement of operation efficiency |
- Continue refining and improving fuel efficiency by optimizing flight routes, cruise altitudes, alternate airport selections, cargo loading, and aircraft center of gravity.
- When infrastructure and weather conditions allow, use electrical power provided by the tow truck for towing aircrafts and use fixed electrical ground power (FEGP) and pre-conditioned air (PCA) equipped on jet bridges and ground-support equipment for ground operations, replacing use of auxiliary power units (APUs).
- Encourage flight crews, when there is no safety concern and condition permitted, perform continuous descent operation (CDO) without intermediate levelling-off during descent, delay extended landing configurations or use low-drag approach configurations; and then after landing taxi to parking aprons by single engine.
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| Aircraft maintenance |
- Regularly clean aircraft fuselages to prevent drag caused by surface contamination. Regularly clean engines and introduce Foam Wash technology, reducing engine exhaust gas temperatures and improving fuel efficiency.
- Sign engine overhaul services with engine manufacturers and replace/adjust engine parts in accordance with Service Bulletin recommendations, to optimize the engine’s baseline performance and improve fuel efficiency.
- Regularly inspect smoothness of flight control surfaces to improve overall aircraft fuel efficiency.
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Fuel Efficiency and Emission Intensity
In order to offer better low-carbon aviation services, with reference to aircraft fuel efficiency statistics, and taking into account the international aviation industry’s common carbon reduction strategies and goals, EVA Air is working toward the goal of improving fuel efficiency by at least 1.5% each year, with a long-term goal of achieving a 40% improvement in carbon emissions intensity by 2031. The aviation industry was impacted by the COVID-19 pandemic between 2020 and 2022. As a result, EVA Air has been actively adjusting our operating strategies, utilizing belly space in passenger aircraft for cargo transport and creating opportunities in the face of adversity. However, overall fuel efficiency has declined slightly due to a shrinking market. With passenger transport springing back from the pandemic in 2023, passenger load factors have increased, thus significantly improving fuel efficiency.
| |
Unit |
2020 |
2021 |
2022 |
2023 |
| Fuel efficiency |
Passenger transport |
L/100RPK |
6.423 |
15.856 |
5.503 |
4.174 |
| Cargo transport |
L/FTK |
0.251 |
0.278 |
0.215 |
0.097 |
| Aircraft greenhouse gas emission intensity |
Passenger transport |
kgCO2e/ RPK |
0.162 |
0.401 |
0.139 |
0.106 |
| Cargo transport |
kgCO2e/ FTK |
0.636 |
0.704 |
0.544 |
0.244 |
| Overall |
kgCO2e/ RTK |
0.868 |
0.816 |
0.733 |
0.737 |
