David Christopherson 11/28/2012

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Hello again,

I have recently been looking in detail at the source code for OSeMOSYS and the .txt files that are used as an input for the model. As part of this, I was recently examining the OSeMOSYS input data generated by LEAP when it was asked to produce results for the Optimization Exercise Area in the LEAP tutorial.

In this data set, the Total Energy Demand is defined by a single branch (electricity) and is set to go from 0 to 200 thousand GW-h between 2010 and 2020. In the OSeMOSYS input file, if I am correct, this data should is stored under the 'SpecifiedAnnualDemand' parameter in units of PetaJoules. Since the conversion between these two units is 1 thousand GW-h = 3.6 PJ, I anticipated this entry to read:

------

param SpecifiedAnnualDemand default 0 :=
[*,*,R1]: F1 :=
2011 72
2012 144
2013 216
2014 228
2015 360
2016 432
2017 504
2018 576
2019 648
2020 720

------

However, the entry instead reads...

------

param SpecifiedAnnualDemand default 0 :=
[*,*,R1]: F1 :=
2011 80
2012 160
2013 240
2014 320
2015 400
2016 480
2017 560
2018 640
2019 720
2020 800

------

... suggesting a conversion factor of 4 had been used.

Is this a error in the input file or have I just mis-interpreted the .txt file?

I am using LEAP version: 2012.0.0.25.

Many Thanks,

David.

Manuel Welsch 11/29/2012
 

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Dear David,

Great that you are looking into the details of the OSeMOSYS-LEAP interlinkages.

In the OSeMOSYS set-up for LEAP, the SpecifiedAnnualDemand is the total demand for electricity. Therefore, LEAP adds the transmission losses to this demand.

E.g., for 2010, a total demand of 80 PJ -10% losses results in the final energy demand of 72 PJ. The conversion factor is therefore 3.6, as it should be.

Best regards,
Manuel

David Christopherson 12/4/2012
 

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Interesting! Thanks for the swift response.

David.