The impact assessment gives me zero results

Question

Hello everyone,
I am still new to the openLCA world. I have built an LCA for a conveyor chain. This is the main part of my bachelor thesis, so it is very important to me.

The only problem now is that the impact assessment method doesn't give me any meaningful results. I get a zero value for all impacts. I have used several databases, as not all the flows used were stored in one database. I have used the following databases: Environmental Footprints, IDEMAT 2023 and ELCD.

Is there a specific impact method I should/must use?
Where can I see which method is compatible with which database?
What else could be the reason that I get zero values?
I look forward to any help:)

Answer 1

Please see also here https://ask.openlca.org/6344/obtain-global-warming-potential-different-methodologies; the EF database must be used only for Environmental Footprint studies and with the EF LCIA method, and does not work with any other method, therefore. IDEMAT has its own method, fits also with the openLCA method pack but has fewer flows per process. ELCD is really outdated.

Comments

Thanks, I will try to limit it to the IDEMAT database