15-07-2016, 06:32 PM
(This post was last modified: 19-07-2016, 10:53 AM by Sharonchang.)
If I understood correctly, the IMP*Z automatically added in the model is to keep equation balance. for example, if I have a commodity-in and a commodity-out, and the commodity-in is not enough to meet the demand of commodity-out, then the model will automatically choose a lowest cost scheme between "IMPNRGZ of commodity-in" or "IMPDEMZ of commodity-out". Here we assumed the IMPDEMZ appeared. Then if we change the cost of IMPNRGZ and IMPDEMZ, for example, give a extremely high cost of IMPDEMZ, maybe the IMPDEMZ will disppear and alternative IMPNRGZ of upstream commodity-in will appear. But I found that will not happen. So I'm wondering whether there are other default design of the model to prevent this change?