Few years ago, I used Aimms to create the file as attached. At that time, CPLEX 12.17.1 package was used to solve the MILP supply chain model. However, when I use newer packages (12.8,12.9,20.1) to run the same file, it gives me very different results. Especially, the “CO2_Capture_Compression_Cost” variable is 0 although it should be 5.6 billion euros as I got. I tried many ways to find why it happens but it doesn’t work. Does anyone can help me in this problem? Thanks a lot for your read and help.
P/s: please run “ReadCO2sourcedata”, “ReadProductssinkdata”, and “ReadStoragesinkdata” to get initial data from “CO2dat” excel file before running the program.