https://forum.iea-etsap.org/ Sat, 24 Oct 2026 02:56:43 +0000 MyBB https://forum.iea-etsap.org/thread-119.html Mon, 23 Apr 2018 11:27:26 -0400 giulia realmonte]]> https://forum.iea-etsap.org/thread-119.html Dear all, since I am still new with TIMES and VEDA program, do you know how I can constraint a commodity flow among processes. In particular, I would like that the electricity (ELCC) used for an industrial process comes only from renewable sources. How can I do it with user constraints or generally scenario files? Regards, Giulia]]> Dear all, since I am still new with TIMES and VEDA program, do you know how I can constraint a commodity flow among processes. In particular, I would like that the electricity (ELCC) used for an industrial process comes only from renewable sources. How can I do it with user constraints or generally scenario files? Regards, Giulia]]> https://forum.iea-etsap.org/thread-102.html Wed, 30 Nov 2016 03:43:43 -0500 seungwoo.kang]]> https://forum.iea-etsap.org/thread-102.html Hello,   I recently introduced new commodities’ international trade in TIAM model. However, I found out some interesting and unwanted results.   I enabled the exchange between A and B region as well as B and C region not allowing the exchange between A and C region.  However, even if C region can import from other regions D, E, F…etc., C imported from A passing through B region. And B region does only transfer of the commodity (even no production in B)   That is not what I wanted to introduce in the model.  Is there any solution to fix it, more specifically to prohibit transfer?   Thank you,   Seungwoo]]> Hello,   I recently introduced new commodities’ international trade in TIAM model. However, I found out some interesting and unwanted results.   I enabled the exchange between A and B region as well as B and C region not allowing the exchange between A and C region.  However, even if C region can import from other regions D, E, F…etc., C imported from A passing through B region. And B region does only transfer of the commodity (even no production in B)   That is not what I wanted to introduce in the model.  Is there any solution to fix it, more specifically to prohibit transfer?   Thank you,   Seungwoo]]> https://forum.iea-etsap.org/thread-98.html Tue, 28 Jun 2016 04:12:53 -0400 seungwoo.kang]]> https://forum.iea-etsap.org/thread-98.html Dear colleagues,   I am seungwoo KANG of CMA (Centre of applied mathematics) in MINES Paristech, France.    During using the TIAM model, I found out an unexpected comportment on emission factors.   The emission factors of aggregated energy sources (INDCOA, INDETH, etc) remain constant in time while their compositions change.   For example, INDCOA's CO2 emission factors is about 98.30 tCO2 based on reference year's share of COAHCO and COABCO for each region. And these emission factors are declared by "~COMEMI" table in IND_Emi sheet of VT_IND files.   Then, whatever the scenarios are imposed, the share of COAHCO and COABCO changes. Nevertheless, INDCOA's emission factors are always fixed at initial declaration (for CO2, 98.3 tCO2)   This problem becomes more serious in transport biofuel. TIAM model has fueltech_diesel_(TRA)_new (TRADST005), which allows biodiesel use in TRADST up to 100% by 2030. For the reference, this fuel tech process is different with biodiesel blending (TRABDL). Even in this case, the emission factors of TRADST do not change according to the actual share of BIODST in TRADST.   If this feature is intentionally implied in TIAM model, I'd like to get some more explications. If not, can anyone give some ideas how to implicitly update the emission factors complying with the chosen shares by model itself? Or did I miss something?   Thank you,   Seungwoo KANG  ]]> Dear colleagues,   I am seungwoo KANG of CMA (Centre of applied mathematics) in MINES Paristech, France.    During using the TIAM model, I found out an unexpected comportment on emission factors.   The emission factors of aggregated energy sources (INDCOA, INDETH, etc) remain constant in time while their compositions change.   For example, INDCOA's CO2 emission factors is about 98.30 tCO2 based on reference year's share of COAHCO and COABCO for each region. And these emission factors are declared by "~COMEMI" table in IND_Emi sheet of VT_IND files.   Then, whatever the scenarios are imposed, the share of COAHCO and COABCO changes. Nevertheless, INDCOA's emission factors are always fixed at initial declaration (for CO2, 98.3 tCO2)   This problem becomes more serious in transport biofuel. TIAM model has fueltech_diesel_(TRA)_new (TRADST005), which allows biodiesel use in TRADST up to 100% by 2030. For the reference, this fuel tech process is different with biodiesel blending (TRABDL). Even in this case, the emission factors of TRADST do not change according to the actual share of BIODST in TRADST.   If this feature is intentionally implied in TIAM model, I'd like to get some more explications. If not, can anyone give some ideas how to implicitly update the emission factors complying with the chosen shares by model itself? Or did I miss something?   Thank you,   Seungwoo KANG  ]]>