Hello! We have a product which is essentially a board with a variety of different profiles - the board is manufactured and delivered to us and then cut into very slightly different shapes along the edge. The mass variance between the profiles is very small and I’d like to create one EPD for all of them but I’m not sure how to model all the variants in one average EPD - where would the averaging occur? Essentially the difference between the profiles is the amount of waste board after cutting - should I model it as A5 waste? Thanks.
Hi Camilla,
Thanks for starting this discussion!
Depending on the Program Operator you want to publish your EPD with, there are different rules and methods for averaging. For example, with EPD Hub, the most common approach is to choose a representative product. This can be a typical product from within the range based on its size or sales volume. After modelling the LCA for this representative product, you would model a minimum case (best performing) and maximum case (worst performing) to give you the variability of the range. This variability is based on the A1-A3 GWP-fossil result.
You can read more about averaging in EPD Hub’s GPI section 2.9 and Annex I here: https://www.epdhub.com/epd-hub-rules
As for the waste from cutting the board, this would be modelled as A3 manufacturing waste.
I hope this helps!
Graham