Green Flight

Aviation fuel is CAL's primary source of GHG. Since 2007, China Airlines has adopted 34 fuel saving measure, in operations including flight planning, flight control, aircraft maintenance, process control, and aircraft weight reduction, actively promoting fuel saving operations and increasing fuel efficiency.

Optimized Flight Control

Optimized flight route, controls, altitude, aircraft weight, and total cost index.

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  • Optimal Routes

Periodically review flight routes and select optimal flight routes to enhance flight efficiency.
After communication and negotiation with air transport management authorities from different countries, China Airlines was granted access to a direct flight path: Taipei to Palau, thereby significantly reducing fuel consumption and saving energy. Not only is faster transport achieved, but environmental protection is also accomplished.


China Airlines corporate with the air traffic controllers for implementation of the CDA during non-peak period.


Fuel reduction by an average of 200 pounds and reducing 630 pounds CO2e.


Previous TPE - ROR route
New TPE - ROR route

The Best Flight Route


The original flight path from Taipei to Palau has to pass through the Philipplines air space with longer flight distance.


After communication and negotiation with air transport management authories from different countries, China Airlines was granted access to a direct Taipei to Palau flight path, thereby significantly reduce fuel and energy consumption. Not only faster transport is achieved but also environmental protection is accomplished.

-23 mins

Flight Time:
Flight duration reduced by 23 mins.


Fuel Efficiency:
Annual reduction of 998400 pound fuel usage
(4 flights per week)

-1176 10kg / NTD

Operational Costs:
Cost down by $11,760 NTD
(4 flights per week)
  • Optimal Operations

The crew optimizes flights of each stage; acceleration height and the low flaps reach to the ground. After landing, using idle speed and reverse thrust, and shut down one or two motors to glide.

  • Optimal Height

With permission by air traffic control, the aircrew is encouraged to actively request air traffic control to allow them to maintain aircraft at optimal altitudes for optimal aircraft performance.

  • Optimal Center of Gravity of an Aircraft

Calculating and finding out the optimal center of gravity of and aircraft for weight and balance to enhance fuel efficiency.

  • Optimal Total Cost Index

Computing the route and altitude that comply with the requirements of safety and fuel saving, thereby saving aircraft fuel.

Ground Service Control

Improved flight plan accuracy, optimized glide and cruise, replaced APU with aircraft tractor power, used ground power and air conditioning systems

Safe Fuel Capacity

Ensured accurate refueling, optimized selection of alternate station, fuel-saving related service bulletin, and checked technical instructions

Periodic Maintenance

Regularly washed engines, cleaned aircrafts, monitored aircraft resistance, examined onboard aviation kit, inspected GPU ground handling rate

Aircraft Weight Reduction

Reduced the weight of airline service trolleys and papers, optimized water capacity, adopted new lightweight baggage container, reduced the weight of the cabin and service products

Aircraft Maintenance

Under compliance with corporate environment management mechanisms of international standards ISO 14001 and ISO 50001, CAL pays attention to details of daily aircraft maintenance operations. Energy saving and environmental friendly applications can be spotted throughout our operation processes.

Through promoting energy management systems, CAL oversees major energy plans. In conjunction with the company's carbon reduction targets, annual performance targets were established and executed. Key highlight measures are as follows:

  • Modified scrapped fuel vehicles to electric vehicles, saving machinery equipment and energy expenditure.
  • Improved operations environment. For example, light grey epoxy was used to paint the hanger floor to enhance the lighting effect.
  • Continued to promote replacing energy saving lighting equipment, installing automatic lighting controls, and adopting behavior management, among other energy saving measures.

Optimized process flow, inspected and controlled water-saving opportunities, and introduced conservation technologies. For example, the environmental aircraft cleaning program (ECOSHINE) was introduced in 2016 to perform aircraft cleaning processes, reducing the use of water resources and cleaning agents.

Set up professional wastewater plants and dedicated organizations for handling waste electrolyte (containing heavy metals, such as chromium and cadmium) from electroplating processes during aircraft maintenance and cleaning processes, and domestic wastewater produced within the plant area. Wastewater from the maintenance park area has reached a 100% recycling target.

China Airlines Wastewater treatment

Installed air pollution control facilities, reduced environmental impact cause by exhaust emissions from aircraft painting or paint removal processes.

China Airlines waste gas emission treatment
Reason for stop using
  • Environmental friendly paint used
  • Total amount of emission is less than the control standard (20tones)
  • Filtered waste gas emission meet emission standard

A 100% recycling rate was established as a target to increase annual waste recycling rates. The waste materials include waste aviation fuel, lubrication oil, waste wooden pallets, waste metal, waste solution, waste solvents, waste plastic, waste paper, waste electric wires and cables, waste light sources, and kitchen waste. The initiative reduced the environmental load of waste materials.

Environmentally Friendly Offices

CAL's carbon reduction concept is implemented across daily office operations. We start from the details, with calculated resource consumption, of materials such as water, electricity, and paper, and thoroughly carry out our measures through implementing target management and staff education, thereby generating substantial carbon reduction benefits. The key measures are as follows:

Electricity Saving Efforts

Replaced energy saving lighting equipment, installed variable frequency drive (VFD) equipment, replaced energy-intensive equipment, optimized air conditioner settings, and promoted energy saving habits.

Fuel Saving Efforts

Gradually promoted the procurement of low-carbon / electric transportation equipment, prioritized the procurement of hybrid business vehicles, controlled the use of business vehicles, performed regular maintenance services for old vehicles, and promoted policies for low carbon drivers and combined crew vehicle schedules.

Water Conservation Efforts

Set up rain water recycling systems, increased waste water recycling rates, adopted products with Water Conservation Mark, regularly reviewed water resource consumption, and promoted concepts of water conservation.

Paper-Saving Efforts

Promoted paperless processes, adopted double-sided printing and rationing system.

Waste Reduction Efforts

Perform waste management using three major principles: Reduce, Reuse, and Recycle, to increase rate of recycle and reduce use of waste products.

Green Buildings

By adhering to the four major indices of Greenness, Base Water Conservation, Daily Energy Saving, and Water Resources as principles, CAL designed and developed the international headquarter, acquired the Green Building Candidate Certificate in 2010 prior to operation, and continued enhancing management and hardware to improve operations, and is expected to subsequently acquire the Green Building Label by 2017.

Energy-saving outer walls

Low-E (low radiant) glass and sun shading boards are used in outer walls to reduces radiant heat. In cooler seasons, natural ventilation and roof heat insulation devices are used to reduce the use of air conditioning and thereby saves energy. Fine lighting can also reduce lighting loads.

Air conditioning

Use cold water machines capable of automatically controlling the number of machines working following the temperature and loads; use variable frequency systems that can save 20% of electricity than non-variable frequency systems.

Energy-saving lighting

Open windows to let in natural sunlight and using "high-efficient lamps" and "electronic ballast" for lighting; replacing T8 lights with T5 lights.

Adjusting the amount of contracting electricity

Adjusting the volume of electricity contracts from 6,000KW to 4,000KW, and further to 3,600KW in 2012.

Special tiles capable of grass

A multi-layer planting method is adopted, Trees on the upper layer have a space of 5 to 6 meters in between, so that seedlings can have sufficient room to growth, whereas every 9 to 25 bushes on the lower layer occupy a space of one square meter. The grasslands are decorated with plants of various colors in different seasons.

Water retention and green planting

Water retention is part of the ecological water cycle. China Airlines expanded the green spaces and covered them with special titles capable of grass to boost the site's permeability and water retention.

Water saving devices

Use products and devices having water-saving label, including water - saving hydrants and toiletts, automatic flushing sensor system and automatic lawn sprinkler system. All of these devices can save 15% to 20% of water use.

Rain water recycling system

Rain water is collected to be used in toiletts and for watering plants. The rain - water recycling system has a water volume of 1,050 tons and is established in the outdoor of the CAL Park, administration building and the basement of the hotel building.

Quality of drinking water

Use central drinking water system and pile end drinking water equipment possess energy- and water - saving labels.

Air Quality

Based on different spatial characteristics of the three buildings, central air-conditioning system and outside air ventilation system are installed to provide better air quality.

Use of green building materials

Offices, general training classrooms and conference rooms are built with green building materials, including water-based Eco paints and light-gage partition walls, etc. All these materials are of low fugitive emission, low pollution and low odor, that pose less harm on health.

Recyclable building materials

Major building materials, including structural steels, roofs, wall metal panels, glass curtains, natural stones etc., are all recyclable. Recycle and reuse waste resources at the construction sites. For example, concrete chunks are shattered and further used as the material for roadbeds in the CAL Park area.

Flight simulator building

"T"shaped flight simulator building pays attention to privacy. Generator and simulator devices requiring no lighting are placed in the central space, whereas offices having lighting requirements are horizontally distributed on the two sides to take advantage of natural lighting.

Training and dispatching building

"H"shaped training and dispatching building is equipped with large-sized training facilities on both sides and designed with high ceiling. Dorners and curtains are also used on both side to let in sufficient natural lighting.

Headquarters building

"–"shaped headquarters building has a long and balanced space planning for offices and used curtains on both sides to let in sufficient natural lighting.

ECO Service

CAL proposed the ECO-service - based brand image and revolved around the concepts of Creative Invention, Technological Application, Environmental Protection, Sensible Interaction, and Trusting Relation. Through electronic, mobile, and cultural innovative services, CAL instills customer awareness to conserve the earth's environment.

Educational Promotions

CAL members take action to embrace the earth, starting from small matters, from themselves, and never turn down anything of the slightest bit of importance.They are constantly reminded of the environment and to influence everyone around them.

Competency-based staff education

Through educational training of environment and energy management systems, professional competency-based staff training regarding environmental protection are provided to CAL corporation to ensure the operation effectiveness of the company's environmental management systems.

Shaping environmental staff culture

  • Promote basic environmental education: Add environmental education courses to new corporation curriculum and regularly promote conceptual education to all employees.
  • Organize, from time to time, an Environmental Seminar, and invite external experts to share experiences in environmental protection,develop employees' attitude and conducts to demonstrate their care for the earths' environment, while also to present relevant information on environmental protection through CAL's internal mailbox and staff communication platform, thereby developing environmental consensus.
  • Diverse activities, such as giveaways, benchmark visits, and short video competitions are organized to call for creative ideas, facilitate collaboration, prompt actions, and activate employees' voluntary environmental consciousness.

Promote industry / cross-industry exchange

Participate external organization platforms, promote benchmarking corporate exchange activities, observe industry benchmark's accomplishments, and expand the depth and breadth of corporate environmental sustainability cultures.