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how to define the load curve correctly
#1
Dear all,
    I define the load curve of demand TPSELC as in attached file. There all several power generation in the model, of which, solar and wind are dyanite and I defined their AF in Trans, and other power generation technologies are seasonal. Now, I find that if  Tslvl for solar and wind are daynite and other power generation technologies are season, their total output of each timeslice is not equal to the load curve as I defined as shown in sheet output . And if the Tslvl for all power generation technologies(including solar, wind and others) are daynite, their total output of each timeslice is almostly equal to the load curve as I defined, which is not correct because the TSLVL of others should be season.  So if there is someone who can tell me how to correct as to the total output of each timeslice is equal to the load curve as I defined and the Tslvl for each power generation technology is correct? 
    Thank you very much.


Attached Files
.xlsx   load curve.xlsx (Size: 16.74 KB / Downloads: 4)
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#2
I cannot see your model, but I looked at your Excel file, and I can see the demand for TPSELC being met in every timeslice, and in some timeslices even with overproduction, apparently because of the lack of flexibility in your system.  If it is this overproduction that you want to prevent, I think you should  1) allow for free curtailment of wind and solar power, 2) set a small variable cost for DTPSELC to avoid zero price electricity from being directed to overproduction. If there is still overproduction of TPSELC with these considerations in place, then your model is just excessively rigid.

You could also set the LimType of TPSELC to FX, which should force zero overproduction of TPSELC.
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#3
(26-03-2024, 02:47 PM)Antti-L Wrote: I cannot see your model, but I looked at your Excel file, and I can see the demand for TPSELC being met in every timeslice, and in some timeslices even with overproduction, apparently because of the lack of flexibility in your system.  If it is this overproduction that you want to prevent, I think you should  1) allow for free curtailment of wind and solar power, 2) set a small variable cost for DTPSELC to avoid zero price electricity from being directed to overproduction. If there is still overproduction of TPSELC with these considerations in place, then your model is just excessively rigid.

You could also set the LimType of TPSELC to FX, which should force zero overproduction of TPSELC.

    Thanks for your reply. I tried the way you suggested, both "set a small variable cost for DTPSELC"  and  "set the LimType of TPSELC to FX " can avoid the overproduction in my model. However, I do not understand how to set 1) allow for free curtailment of wind and solar power.  I would appreciate it if you can teach me how to do it.   AF of each timeslice in model is higher than the actual AF?
    Thank you very much.
  Guo Zhi
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