The CO2 calculation follows standard methodologies such as described by the IDSA in it's Okala method. Data sources for the LCA Calculator come from internationally recognised agencies, research bodies and academic institutions, including
If the region of manufacture is specified, CO2 values for electricity based manufacturing processes (but not material production) are uniquely adjusted based upon the energy mix for the region of manufacture. Energy mix values (CO2 per KWh) are taken from ‘Fuel Combustion 2010’ International Energy Agency.
Calculations for manufacturing processes are calculated based upon the part mass. Where the energy use and CO2 emissions of a process are related to the components surface area (for example painting or plating processes) or length (such as cutting or welding processes), assumptions have been made about a typical part geometries (and simple options given) for the convenience of the user. Where such assumptions have been made, any inaccuracies arising from such assumptions have been judged to be of negligible significance.
The LCA Calculator’s purpose is to provide the most relevant data and information to allow product designers, engineers and businesses to make more informed decisions about the sustainability of their products. However it should be noted that the figures used have been calculated as averages for particular processes or stages and significant variation will exist between different individual suppliers based upon a range of factors.
Should you require any further information please make use of the details on the contact page. We welcome contact from companies, institutes and academics with further research and data in this area. Data sources for the LCA Calculator are continually under review and periodic updates will be made to reflect changes in industrial processes and data analysis methods.
The LCA Calculator uses data from internationally recognised data sources across all product life cycle stages included in the calculator. These are made up of:
