In my study, I am trying to optimize the water consumption in electricity generation in my study area. I am having a trouble while introducing the renewable energy potential of my study area into the model. I think that this should be done through the variable named "Maximum Capacity" which is defined as "the maximum amount of capacity for a process in any given year". Firstly, I left the variable at its default value (unlimited). When I run the model, there is no problem. It meets all electricity demand through the wind as I expect. Later, I tried to change the maximum capacity of wind. However, LEAP cannot find an optimal solution regardless of the value of this parameter. My question is how can I limit the renewable energy resources in LEAP? If the Maximum Capacity is not the correct variable, which variable should I use? And if it is the correct one, what could be the problem?

Thanks in advance,

Regards,

Zeynep

I think you are on the right track using Maximum Capacity to limit the amount of renewable potential. However, if you do come across the message "Problem has no Primal Feasible Solution", it means that there are constraints that you have specified that may contradict each other. I recommend checking the Exogenous Capacity, Minimum Capacity and Minimum Capacity Addition variables (and combinations of these variables) to ensure that these values are not higher than the value for Maximum Capacity or Maximum Capacity Additions.

Hope this helps!

Emily

Thanks for your reply. Your suggestion has worked! The problem is related to Exogeneous Capacities. Thank you again.

Best wishes,

Zeynep