12-03-2021, 04:51 AM
(17-08-2016, 05:18 AM)Antti-L Wrote: I have not worked much with TIAM lately, but I just want to emphasize that both TIMES and VEDA support defining emission factors on any process flows (by using FLO_EMIS), and therefore it is easy to model the emissions according to the actual fuel shares. You could just remove those offending ~COMEMI emission factors and replace them with emission factors defined on the input fuels of the fuel technologies.
Dear Antii-L,
As mentioned by Kang, this problem can miscalculate the total CO2 emission. We need the COMEMI table to be time dependant. I used FLO_EMIS as you suggested, but the problem stays the same since FLO_EMI is assigning emission to a process, not to a commodity. For instance, a vehicle that bought in earlier years, when the fuel was blended with less than 100% biofuel, will have still positive emissions in the future. However, we change the composition of the fuel (biofuel) to 100%, so it should not be positive even for the same vehicle.