Product Life Cycle Assessment

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Product Life Cycle Assessment

Product Life Cycle Assessment

Product Life Cycle Assessment


The product life cycle assessment (LCA) refers to the assessment of potential environmental impacts caused by the investments in and outputs of raw material, manufacturing, distribution, use, and end of life stages of products and services. Corporations can use LCA to assess all the impacts on the environment created by products “from cradle to grave”, such as contributions to global warming and damage to the ozone. The assessment results can be applied to products, manufacturing and services to achieve the purpose of continuously providing environmentally friendly products.

In 2022, Wistron complies with ISO 14040 and 14044 life cycle assessment standards in the life cycle assessments of laptop computers and All in One products. The scope of the system boundaries has been defined according to the product category rules (PCR) for IT equipment by the EU Environmental Footprint Category. The boundaries have been defined as cradle to grave, which includes raw material, manufacturing, distribution, use, and end of life stages. The LCA analysis software is used to conduct the computational analysis to obtain the environmental impact assessment results and carbon footprint of the product. Currently, products that have completed LCA analysis account for 20.24% of the revenue of laptop computers, desktop computers, all-in-one computers and handheld devices.

Wistron established a standard operating procedure for product life cycle assessment. Our colleagues are trained through e-learning classes. At the same time, an LCA analysis team was established to continuously strengthen the knowledge and capabilities of the company's product life cycle assessment. In addition, Wistron has started the development of the product carbon footprint system (PCF System) since 2022. It obtains product-related information by connecting Wistron's internal systems in series to greatly reduce the manual work time for life cycle assessment. In the future, this system will be used to accelerate the LCA coverage of Wistron's products, and continue to develop low-carbon products through carbon emission hotspot analysis and improvement.

Analysis of carbon footprints at every stage of the lifecycle

Product scope Raw materials Manufacturing Distribution Product Use End of Life Total Carbon Emissions
Laptop Computer(13 inches)
(Chengdu Plant)
45.88 2.08 17.12 15.70 1.66 82.44
Laptop Computer(14 inches)
(Chengdu Plant)-A
48.30 2.97 23.20 23.00 1.97 99.44
Laptop Computer(14 inches)
(Chengdu Plant)-B
49.99 2.67 17.56 27.24 1.80 99.25
AIO(24 inches)
(Zhongshan Plant)
177.33 6.74 38.32 97.50 3.81 323.70
  • Unit: kg CO2 eq

Results of Environmental Impact Assessment

Impact category Unit Environmental impact assessment result
Laptop Computer
(13 inches)
(Chengdu Plant)
Laptop Computer
(14 inches)
(Chengdu Plant)-A
Laptop Computer
(14 inches)
(Chengdu Plant)-B
(24 inches)(Zhongshan Plant)
Climate change kg CO2 eq 77.41 78.11 100.96 323.78
Stratospheric ozone depletion kg CFC-11 eq 0.000036 0.000401 0.000048 0.000163
Ionizing radiation kBq Co-60 eq 8.66 11.61 14.47 46.10
Ozone formation, Human health kgNOx eq 0.22 0.18 0.28 0.85
Fine Particulate matter formation kg PM2.5 eq 0.17 0.19 0.21 0.69
Ozone formation, Terrestrial ecosystem kgNOx eq 0.22 0.19 0.29 0.87
Terrestrial acidification kg SO2 eq 0.36 0.36 0.44 1.29
Freshwater eutrophication kg P eq 0.07 0.07 0.08 0.27
Marine eutrophication kg N eq 0.02 0.02 0.03 0.16
Terrestrial ecotoxicity kg 1,4-DB eq 1,190.83 1,229.27 1,245.92 2,466.55
Freshwater ecotoxicity kg 1,4-DB eq 22.18 25.17 27.24 70.77
Marine ecotoxicity kg 1,4-DB eq 29.22 32.98 35.53 91.99
Human carcinogenic toxicity kg 1,4-DB eq 7.41 8.70 10.48 31.42
Human non-carcinogenic toxicity kg 1,4-DB eq 347.56 381.99 402.40 1,014.40
land use m2 a crop eq 2.31 2.76 3.24 10.66
Water consumption m3 1.39 1.54 1.60 4.41
Mineral resource scarcity kg Cu eq 19.94 19.54 26.48 83.00
Fossil resource scarcity kg oil eq 0.92 0.96 1.05 3.32