13-08-2019, 10:13 PM

Small Follow-up:

I noticed now that you have referred to "undiscounted levelised Cost_Fom" in your post, as if you had been using $SET ANNCOST LEV. Therefore, I checked with a small test model whether I can reproduce the numbers in your Excel file. But I could NOT reproduce them under the levelised annual cost option. However, I was able to reproduce your numbers by running without the levelised annual cost option! Hence, my test appears to confirm my suspicion that you have not been using the levelised annual cost option, even though you refer to "levelised Cost_Fom" in your post.

When using the levelized annual cost option ($SET ANNCOST LEV), I was able to reproduce the value of the objective function of my test model with a relative accuracy of 10^-14 (0.0000000000003%), just by multiplying the reported annual costs with the reported Time_NPV.

I noticed now that you have referred to "undiscounted levelised Cost_Fom" in your post, as if you had been using $SET ANNCOST LEV. Therefore, I checked with a small test model whether I can reproduce the numbers in your Excel file. But I could NOT reproduce them under the levelised annual cost option. However, I was able to reproduce your numbers by running without the levelised annual cost option! Hence, my test appears to confirm my suspicion that you have not been using the levelised annual cost option, even though you refer to "levelised Cost_Fom" in your post.

When using the levelized annual cost option ($SET ANNCOST LEV), I was able to reproduce the value of the objective function of my test model with a relative accuracy of 10^-14 (0.0000000000003%), just by multiplying the reported annual costs with the reported Time_NPV.