ANA is implementing various operational measures to reduce CO₂ emissions from aircraft.
Major Initiatives
Water-washing engines
By injecting water into the engine to clean soot and dirt that adhere to the engine during operation at an optimal frequency, engine performance is restored and fuel consumption is reduced.
Reduction of aircraft weight
The cabin is equipped with a variety of items for use in aircraft operation and in-flight services. Electronization and lightweighting reduce the total weight of the aircraft and reduce CO₂ emissions.
Selection of optimum altitudes, speed and routes
For each and every flight, all information is checked to select the optimum altitude, speed, and route, for creating a suitable flight plan that reduces fuel consumption.
Climb with early acceleration
After takeoff, a device called flaps, which increases the wing area of the airplane, is retracted early to reduce aerodynamic drag, thereby reducing CO₂ emissions.
Reverse thrust suppression after landing
Upon landing, the aircraft uses reverse thrust and brakes to slow down, but if there is no safety issue, the engine power when using the reverse thrust system is adjusted to lower level to reduce CO₂ emissions.
Single-engine taxiing
Since ground taxiing is possible with only one engine after landing, CO₂ emissions are reduced by stopping one engine for ground taxiing when it can be done safely.
Let's take a look at how much fuel consumption and CO₂ emissions reduction has been achieved as a result of various initiatives!
- * For the aircraft owned by ANA except A380-800s and DHC-8-400s
Results for November 2024
| Reduced CO₂ emissions* (estimated) | 4,846t |
|---|---|
| Reduced fuel consumption (estimated) | 1,931kl |
- Reduced fuel consumption details
-
- Water-washing engines : 1,241kl
- Climb with early acceleration : 199kl
- Reverse thrust suppression : 341kl
- Single-engine taxiing : 150kl
The 1,931 kiloliters of fuel saved is enough to fly approximately 268,480 kilometers on a B787-9 airplane.
This corresponds to a distance of approximately 7 cirumference of the earth!
- "Reduced CO₂ emissions" for engine water wash is an assumed effect calculated from the estimated fuel consumption saved per wash.
- "Reduced CO₂ emissions" for early acceleration, reverse thrust suppression, and single-engine taxiing are calculated based on the estimated reduced fuel consumption obtained from flight data.