Hi,
I'm trying to model a biogas upgrading system. It produces biomethane and capture CO2 from the biogas. How can I model the avoided emission of CO2 and the avoided exctraction of natural gas that will produce the same amount of energy of the produced biomethane? I try adding them as a negative output flow, but I'm not sure it is correct.
Many thanks in advance for your help
Best,
Melissa
