Lenovo Product Carbon Footprint (PCF) Information Sheet

PC/Notebook/Monitor/Tablet

Product Details

Commercial Name	ThinkCentre M90 Tower
Model Number	11CY, 11D0, 11D4, 11D5
Issue Date	2020-4-1

Product Environmental Attributes

(a) Product Carbon Footprint Value:

1031 kg of CO₂e (see Note 1 below)

(b) Product Picture:

A visual representation of the ThinkCentre M90 Tower is provided. It is a compact desktop computer with a dark grey chassis.

A pie chart illustrates the distribution of CO₂e emissions across different components and life stages. The breakdown is as follows:

Use: 48%
Mainboard and other boards: 21%
Solid State Drive: 9%
Transportation: 4%
EOL (End of Life): 1%
Chassis: 3%
Hard Drive: 1%
Optical Drive: 1%
Power Supply Unit: 11%
Packaging: 1%

Individual elements displaying 0% are less than 0.5%.

Note 1:

All estimates of carbon footprint are uncertain. Lenovo reports the 95th percentile of the carbon footprint estimate to reflect that uncertainty. For this product, that estimate has a mean of 719 kg of CO₂e and standard deviation of 174 kg of CO₂e. For a quantity that follows a normal distribution, the 95th percentile value is equal to the mean plus the standard deviation multiplied by 1.64. Other organizations might report this value as 719 +/- 174 kg of CO₂e.

This PCF was generated using the Product Attribute to Impact Algorithm model, Version 1/20/2018, Date: 1/20/2018 (Product Type: DeskTop), © Massachusetts Institute of Technology's Materials Systems Laboratory, August 2012. Please refer to the Intended Uses and Limitations of the PAIA Model, © Massachusetts Institute of Technology's Materials Systems Laboratory, August 2012 for further details. Link to Document

This calculation was based upon a Lenovo ThinkCentre M90 Tower with the assumptions and configuration described in the calculation assumptions in the next page.

Assumption Table

Category	Element	Unit	Input	Mean	COV
Product Specifics	Product Weight	kg	Input	7.5	0.01
	Annual Energy Usage	kWh	78.1
	Screen Size	inches	NA
	Product Lifetime	years	5
Location	Assembly Location	no unit	CN
Location	Use Location	no unit	WW
Transportation from Assembly to Customer	To country of use: by air	fraction	Input	0.1	0.2
	To country of use: by ship	fraction	Input	0.85	0.15
	To country of use: by rail	fraction	Input	0.05	0.2
	To country of use: by truck	fraction	Input	0
	In country of use: by air	fraction	Input	0.1	0.15
	In country of use: by ship	fraction	Input	0
	In country of use: by rail	fraction	Input	0.05	0.15
	In country of use: by truck	fraction	Input	0.85	0.15
End of Life	Fraction Recycled (remainder to landfill)	fraction	Input	0.5
End of Life	Fraction Shredded Recycling (remainder to manual)	fraction	Input	0.8

The PCF value is calculated using the specific attributes above for assembly, use and transportation mode. If you need any other country specific information, please contact environment@lenovo.com.

Notes

Life cycle phases included in the streamlined Product Attribute to Impact Algorithm (PAIA) Life Cycle Analysis (LCA) can be grouped into four categories which include Manufacture, Transport, Use, and End of Life. Below is a brief description of each phase.

Manufacture: This life cycle phase captures emissions generated during the extraction, production, and transport of raw materials, the manufacture of components and subassemblies (including the product packaging) and product assembly.
Transport: Emissions included in the transport phase include all those generated during the air, ocean or land transport of finished or semi-finished Lenovo products between Lenovo facilities and from Lenovo facilities to customers.
Use: In use energy consumption is calculated in accordance with the U.S. Environmental Protection Agency's Energy Star® Typical Energy Consumption (TEC) methodology. Calculated energy consumption is then used in combination with average emissions factors for the designated country of use to calculate emissions.
End of Life: It is assumed that a designated portion of the product (see table above) is recycled at the end of the use period determined in the TEC methodology. It is also assumed that the balance of the product waste materials is disposed of by landfill. Emissions generated during the mechanical destruction, separation and transport of end of life materials are included in the calculation.

Product scope of this sheet includes desktop computer, integrated desktop computer, notebook computer, monitor and tablet. This document is only valid in connection with “THE ECO DECLARATION" of the specific product.

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