a running problem when running the front end

[yu03]

Hmm... I don't know why they don't show up.  They do show up when I import the constraints for the coal plants into the DEMO model, see attached picture.

So, there must be still something wrong in your set-up, for example maybe ELC should read ELCC in your model, or some simple mistake like that (just for one long shot ).

Note also that your constraint name for coal-UP is wrong (it is the same as for nuclear).  Good luck!

good news! I solved it.

I added an aterisk after the ELC. I mean that “ELC” was replaced by "ELC*". In our model, "ELC*" represented ELCELC which is the commodity out. however, “ELC” can not represent ELCELC.  a little mistake.

thank you so much for your help and hints.