Maniesegaran Sagadevan

Dear Hendrik,Thank you so much for your insights. Helped me a lot. How do i set the question as solved then?

Hey Hendrik ! Thanks for your response, the video did clear some things up for me! I have indeed now solved most of the problems using a "if statement" in the grb.quicksum list.  eq_mass_bal = {(t,...

Thanks Jaromil, That doesnt work however, as the original equation is a lot more complex than the one presented here.  eq_mass_bal = {(t,n,d,y): ggm.addConstr( lhs=grb.quicksum(Q_P[t,n,r,d,y] ...

Dear Jaromil, thanks for your prompt response!  This is the code that i currently have. import gurobipy as gpfrom gurobipy import GRBggm = gp.Model("Global Gas Model")A = {"BRA_USA", "ARG_CHI"}T = ...