25-02-2022, 08:05 PM (This post was last modified: 25-02-2022, 08:24 PM by mkersten.)
We are trying to include the EU Modernisation Fund (MoFo) in our model, but it is causing infeasibilities, see the LST logs below. It seems that the UC_MaxInvSub_REN_MoFo < 0 requirement interferes with the AL_ELC_WIN > 2.5 requirement, but we are unsure why.
Number of variables in conflict: 6
lower: VAR_ACT('CZ',2020,2020,'EUPVSOL201',WP) > 0
lower: VAR_ACT('CZ',2020,2020,'EUPVSOL301',WP) > 0
lower: VAR_NCAP('CZ',2020,'EUHYDRUNS101') > 0 lower: VAR_UCRTS('AL_ELC_WIN','CZ',2020,ANNUAL) > 2.5
upper: VAR_UCT('UC_MaxInvSub_REN_MoFo',2020) < 0
upper: VAR_UCRTS('AU_ELC_WON2','CZ',2020,ANNUAL) < 0 --- Model has been proven infeasible
Well, it seems you have a lower bound for wind power in 2020, which is also subsidized, and at the same time you limit the investment subsidies to zero in 2020. I think that if you could consider allowing the investors to make also unsubsidized wind power investments (to be included in 'AL_ELC_WIN'), you would get rid of the conflict in your specification.
However, you could easily correct the problem also by recalling that 2020 is already a historical year. Therefore, you should better model the capacities installed by 2020 by using PRC_RESID or NCAP_PASTI, and not by decision variables related to investments into new capacity.
(26-02-2022, 04:04 AM)Antti-L Wrote: Well, it seems you have a lower bound for wind power in 2020, which is also subsidized, and at the same time you limit the investment subsidies to zero in 2020. I think that if you could consider allowing the investors to make also unsubsidized wind power investments (to be included in 'AL_ELC_WIN'), you would get rid of the conflict in your specification.
However, you could easily correct the problem also by recalling that 2020 is already a historical year. Therefore, you should better model the capacities installed by 2020 by using PRC_RESID or NCAP_PASTI, and not by decision variables related to investments into new capacity.
Thank you for your answer. Could you perhaps advise us on how to allow investors to make unsubsidized wind power investments?
