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Dear all,

I have notice that when I build the product system, it downstream processes such as waste management is not automatically connected. So I manually add them.

However, when I try to calculate the result, it does not include the downstream processes at all. The supply chain result is the same as my reference process result.

Did I understand it wrongly about how to build the model?

Thanks for any tipps!
in openLCA by (140 points)

1 Answer

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by (71.8k points)
Yes, openLCA never calculates downstream (think of calculating an ecoinvent process product, this is again used in thousands of other processes which are not calculated), only upstream (input products and waste output). Waste output is not downstream, waste and waste treatment is considered in the calculation, the flow must be a waste flow type then. Maybe, if you can post a picture of your system, it is easier to describe and see. Thank you!