Jan Wiegner
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Latest activity by Jan Wiegner-
Jan Wiegner commented,
Hi Marika, ok, thanks for the assessment! I think I now understand why there is such a large violation. The affected constraint looks like this: s_1 * par_unit_capex * var_size' = s_2 * var_capex' ...
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Jan Wiegner commented,
Hi Marika, thanks for you answer. We noticed we made a mistake in the specifications of the models ending up essentially running two different models. The 14% difference was thus incorrect, however...
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Jan Wiegner commented,
Hi Marika, sorry, took me a bit of time to answer. Thanks for your help so far! We do know the advanced user scaling guide and the guidelines for numerical issues. We tried a couple of things to ge...
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Jan Wiegner created a post,
Significantly different results of scaled and unscaled models
AnsweredDear community,we are solving a large energy system optimization with gurobi and started to experiment with model scaling. Interestingly, the objective function values (after unscaling) in the opti...