remindmodel · Renato-Rodrigues · Jun 11, 2024 · Jun 11, 2024 · Jun 11, 2024 · Jun 11, 2024
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -111,7 +111,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - **scripts** enhance output script `reportCEScalib` to include additional plot formats [[#1671](https://github.com/remindmodel/remind/pull/1671)]
 
 ### added
-- **24_trade** add optinal trade scenario for EUR hydrogen and e-liquids imports [[#1666](https://github.com/remindmodel/remind/pull/1666)] 
+- **24_trade** add optional trade scenario for EUR hydrogen and e-liquids imports [[#1666](https://github.com/remindmodel/remind/pull/1666)] 
+- **24_trade** add optional trade scenario for EUR bio-fuels imports [[#1678](https://github.com/remindmodel/remind/pull/1678)] 
+- **47_regipol** add support for scenario based regional emission targets and add net-zero pledges scenario [[#1674](https://github.com/remindmodel/remind/pull/1674)]
+- **47_regipol** add support for loading exogenous CO2 price from the input gdx [[#1698](https://github.com/remindmodel/remind/pull/1698)] 
 
 ## [3.3.0] - 2024-03-28
 

diff --git a/core/presolve.gms b/core/presolve.gms
@@ -124,21 +124,19 @@ loop((enty,enty2)$emiMac2mac(enty,enty2), !! make sure that both mac sectors and
 );
 
 *** Redefine the MAC price for regions with emission tax defined by the regipol module
-$IFTHEN.emiMkt not "%cm_emiMktTarget%" == "off"
- loop(ext_regi$regiEmiMktTarget(ext_regi),
-  loop(regi$regi_groupExt(ext_regi,regi),
+$IFTHEN.emiMkt not "%regipol%" == "none"
+ loop(regi$regiNativeEmiMktTarget(regi),
 *** average CO2 price aggregated by FE
-    p_priceCO2(t,regi) = ( (sum(emiMkt, pm_taxemiMkt(t,regi,emiMkt) * sum((entySe,entyFe,sector)$(sefe(entySe,entyFe) AND entyFe2Sector(entyFe,sector) AND sector2emiMkt(sector,emiMkt)),vm_demFeSector.l(t,regi,entySe,entyFe,sector,emiMkt)))) / (sum((entySe,entyFe,sector,emiMkt)$(sefe(entySe,entyFe) AND entyFe2Sector(entyFe,sector) AND sector2emiMkt(sector,emiMkt)),vm_demFeSector.l(t,regi,entySe,entyFe,sector,emiMkt))) )*1000;
-    loop((enty,emiMkt)$(macSector2emiMkt(enty,emiMkt)),
-      loop(enty2$emiMac2mac(enty,enty2), !! make sure that both mac sectors and mac curves have prices asigned as both sets are used in calculations below
-        pm_priceCO2forMAC(t,regi,enty) = pm_taxemiMkt(t,regi,emiMkt)* 1000;
-        pm_priceCO2forMAC(t,regi,enty2) = pm_taxemiMkt(t,regi,emiMkt)* 1000;
-        pm_priceCO2forMAC(t,regi,"co2chemicals") = pm_taxemiMkt(t,regi,"ETS")* 1000;
-        pm_priceCO2forMAC(t,regi,"co2steel") = pm_taxemiMkt(t,regi,"ETS")* 1000;
-      );
+  p_priceCO2(t,regi) = ( (sum(emiMkt, pm_taxemiMkt(t,regi,emiMkt) * sum((entySe,entyFe,sector)$(sefe(entySe,entyFe) AND entyFe2Sector(entyFe,sector) AND sector2emiMkt(sector,emiMkt)),vm_demFeSector.l(t,regi,entySe,entyFe,sector,emiMkt)))) / (sum((entySe,entyFe,sector,emiMkt)$(sefe(entySe,entyFe) AND entyFe2Sector(entyFe,sector) AND sector2emiMkt(sector,emiMkt)),vm_demFeSector.l(t,regi,entySe,entyFe,sector,emiMkt))) )*1000;
+  loop((enty,emiMkt)$(macSector2emiMkt(enty,emiMkt)),
+    loop(enty2$emiMac2mac(enty,enty2), !! make sure that both mac sectors and mac curves have prices asigned as both sets are used in calculations below
+      pm_priceCO2forMAC(t,regi,enty) = pm_taxemiMkt(t,regi,emiMkt)* 1000;
+      pm_priceCO2forMAC(t,regi,enty2) = pm_taxemiMkt(t,regi,emiMkt)* 1000;
+      pm_priceCO2forMAC(t,regi,"co2chemicals") = pm_taxemiMkt(t,regi,"ETS")* 1000;
+      pm_priceCO2forMAC(t,regi,"co2steel") = pm_taxemiMkt(t,regi,"ETS")* 1000;
     );
   );
- );
+);
 $ENDIF.emiMkt
 
 *** The co2 price for land-use entities needs to be reduced by the same factor as in MAgPIE.

diff --git a/main.gms b/main.gms
@@ -1319,7 +1319,11 @@ $setglobal c_ccsinjecrateRegi  off  !! def = "off"
 ***   ("forcing_SSP2") settings consistent with SSP 2
 ***   ("forcing_SSP5") settings consistent with SSP 5
 $setglobal c_SSP_forcing_adjust  forcing_SSP2   !! def = forcing_SSP2  !! regexp = forcing_SSP(1|2|3|5)
-*** cm_regiExoPrice "set exogenous co2 tax path for specific regions using a switch, require regipol module to be set to regiCarbonPrice (e.g. GLO.(2025 38,2030 49,2035 63,2040 80,2045 102,2050 130,2055 166,2060 212,2070 346,2080 563,2090 917,2100 1494,2110 1494,2130 1494,2150 1494) )"
+*** cm_regiExoPrice "set exogenous co2 tax path for specific regions using a switch or load the values from the input gdx. This feature requires regipol module to be set to regiCarbonPrice. 
+***   ("gdx") CO2 prices will be exogenously fixed to the values found in the input gdx, both for pm_taxCO2eq and pm_taxemiMkt parameters.
+***   ("<regigroup>.<year> <value>, <regigroup>.<year2> <value2>" or "<regigroup>.(<year1> <value>,<year2> <value>") CO2 prices will be exogenously defined
+***      only for the regions, periods and values defined in the switch cm_regiExoPrice
+***      e.g. "GLO.(2025 38,2030 49,2035 63,2040 80,2045 102,2050 130,2055 166,2060 212,2070 346,2080 563,2090 917,2100 1494,2110 1494,2130 1494,2150 1494)" 
 $setGlobal cm_regiExoPrice  off    !! def = off
 *** cm_emiMktTarget "set a budget or year emission target, for all (all) or specific emission markets (ETS, ESD or other), and specific regions (e.g. DEU) or region groups (e.g. EU27)"
 ***   Example on how to use:

diff --git a/modules/21_tax/off/not_used.txt b/modules/21_tax/off/not_used.txt
@@ -71,4 +71,5 @@ pm_gdp,input,only needed if tax is on
 pm_cf,input,only needed if tax is on
 vm_shDemSeel,input,only needed if tax is on
 pm_teAnnuity,input,only needed if tax is on
+pm_tau_CO2_tax_gdx,input,questionnaire
 sm_D2005_2_D2017,input,no conversion needed
diff --git a/modules/21_tax/on/declarations.gms b/modules/21_tax/on/declarations.gms
@@ -60,7 +60,7 @@ p21_CO2TaxSectorMarkup(ttot,all_regi,emi_sectors)          "CO2 tax markup in bu
 
 p21_deltarev(iteration,all_regi)             "convergence criteria for iteration on tax revenue recycling"
 
-p21_tau_CO2_tax_gdx(ttot,all_regi)           "tax path from gdx, may overwrite default values"
+pm_tau_CO2_tax_gdx(ttot,all_regi)           "tax path from gdx, may overwrite default values"
 p21_tau_CO2_tax_gdx_bau(ttot,all_regi)       "tax path from gdx, may overwrite default values"
 
 p21_implicitDiscRateMarg(ttot,all_regi,all_in)  "Difference between the normal discount rate and the implicit discount rate"

diff --git a/modules/21_tax/on/preloop.gms b/modules/21_tax/on/preloop.gms
@@ -13,11 +13,11 @@ pm_taxemiMkt_iteration(iteration,t,regi,emiMkt)$(t.val ge cm_startyear) = 0;
 ***-------------------------------------------------------------------
 ***           overwrite default targets with gdx values
 ***-------------------------------------------------------------------
-Execute_Loadpoint 'input' p21_tau_CO2_tax_gdx = pm_taxCO2eq;
+Execute_Loadpoint 'input' pm_tau_CO2_tax_gdx = pm_taxCO2eq;
 if (cm_gdximport_target eq 1,
 *** only if tax rates not all equal to zero
-if (smax((t,regi),p21_tau_CO2_tax_gdx(t,regi)$(t.val gt 2030)) gt 0,
-pm_taxCO2eq(t,regi) = p21_tau_CO2_tax_gdx(t,regi);
+if (smax((t,regi),pm_tau_CO2_tax_gdx(t,regi)$(t.val gt 2030)) gt 0,
+pm_taxCO2eq(t,regi) = pm_tau_CO2_tax_gdx(t,regi);
 );
 );
 if (cm_emiscen ne 9,

diff --git a/modules/47_regipol/none/not_used.txt b/modules/47_regipol/none/not_used.txt
@@ -75,6 +75,7 @@ vm_emiTeMkt,input,added by codeCheck
 pm_emiMktTarget_tolerance,switch,not needed
 sm_globalBudget_dev,input,questionnaire
 pm_allTargetsConverged,input,questionnaire
+pm_tau_CO2_tax_gdx,input,questionnaire
 sm_EJ_2_TWa,input,not needed
 vm_prodSe,input,not needed
 pm_cesdata,input,not needed

diff --git a/modules/47_regipol/regiCarbonPrice/datainput.gms b/modules/47_regipol/regiCarbonPrice/datainput.gms
@@ -33,7 +33,10 @@ $IFTHEN.emiMkt not "%cm_emiMktTarget%" == "off"
 *** Auxiliar parameters based on emission targets information
   loop((ttot,ttot2,ext_regi,emiMktExt,target_type_47,emi_type_47)$pm_emiMktTarget(ttot,ttot2,ext_regi,emiMktExt,target_type_47,emi_type_47), !!calculated sets that depends on data parameter
     regiEmiMktTarget(ext_regi) = yes; !! assigning values to set containing extended regions that have regional emission targets  
-    regiANDperiodEmiMktTarget_47(ttot2,ext_regi) = yes; !! assigning values to set containing extended regions and terminal years of regional emission targets  
+    regiANDperiodEmiMktTarget_47(ttot2,ext_regi) = yes; !! assigning values to set containing extended regions and terminal years of regional emission targets 
+    loop(regi$regi_groupExt(ext_regi,regi),
+      regiNativeEmiMktTarget(regi) = yes; !! assigning values to set containing native regions that have regional emission targets  
+    );
   );
 
 *** Calculating set containing regions that should be controlled by a given regional emission target. 
@@ -359,5 +362,28 @@ $offdelim
 
 $endif.exogDemScen
 
+***---------------------------------------------------------------------------
+*** Exogenous CO2 tax level:
+***---------------------------------------------------------------------------
+$ifThen.regiExoPrice not "%cm_regiExoPrice%" == "off"
+$ifThen.regiExoPriceType "%cm_regiExoPrice%" == "gdx" 
+*** load emiMkt CO2eq prices from input gdx
+Execute_Loadpoint 'input' p47_tau_taxemiMkt = pm_taxemiMkt;
+*** assigning values to set containing native regions that have exogenously fixed emission market co2 prices
+loop((t,regi,emiMkt)$p47_tau_taxemiMkt(t,regi,emiMkt),
+  regiNativeEmiMktTarget(regi) = yes;
+);
+$else.regiExoPriceType
+*** assigning values to set containing native regions that have exogenously fixed emission market co2 prices
+loop((t,ext_regi)$p47_exoCo2tax(ext_regi,t),
+  loop(regi$regi_group(ext_regi,regi),
+    regiNativeEmiMktTarget(regi) = yes;
+  );
+);
+$endIf.regiExoPriceType
+$endIf.regiExoPrice
+
+
+
 
 *** EOF ./modules/47_regipol/regiCarbonPrice/datainput.gms
diff --git a/modules/47_regipol/regiCarbonPrice/declarations.gms b/modules/47_regipol/regiCarbonPrice/declarations.gms
@@ -240,9 +240,15 @@ $endIf.cm_CCSmaxBound
 *** Exogenous CO2 tax level:
 ***---------------------------------------------------------------------------
 $ifThen.regiExoPrice not "%cm_regiExoPrice%" == "off"
+
 Parameter
+$ifThen.regiExoPriceType "%cm_regiExoPrice%" == "gdx" 
+  p47_tau_taxemiMkt(ttot,all_regi,emiMkt)   "emiMkt CO2eq prices loaded from input gdx, in T$/GtC = $/kgC. To get $/tCO2, multiply with 272 [T$/GtC]"
+$else.regiExoPriceType
   p47_exoCo2tax(ext_regi,ttot)   "Exogenous CO2 tax level. Overrides carbon prices in pm_taxCO2eq, only if explicitly defined. Regions and region groups allowed. Format: '<regigroup>.<year> <value>, <regigroup>.<year2> <value2>' or '<regigroup>.(<year1> <value>,<year2> <value>'). [$/tCO2]" / %cm_regiExoPrice% /
+$endIf.regiExoPriceType
 ;
+
 $endIf.regiExoPrice
 
 

diff --git a/modules/47_regipol/regiCarbonPrice/postsolve.gms b/modules/47_regipol/regiCarbonPrice/postsolve.gms
@@ -145,19 +145,17 @@ p47_emiTargetMkt_iter(iteration,ttot,regi, emiMktExt,emi_type_47) = p47_emiTarge
 $IFTHEN.emiMkt not "%cm_emiMktTarget%" == "off" 
 
 *** Removing economy wide co2 tax parameters for regions within the emiMKt controlled targets (this is necessary here to remove any calculation made in other modules after the last run in the postsolve)
-  loop(ext_regi$regiEmiMktTarget(ext_regi),
-    loop(regi$regi_groupExt(ext_regi,regi),
+  loop(regi$regiNativeEmiMktTarget(regi),
 *** Removing the economy wide co2 tax parameters for regions within the ETS markets
-      pm_taxCO2eqSum(t,regi) = 0;
-      pm_taxCO2eq(t,regi) = 0;
-      pm_taxCO2eqRegi(t,regi) = 0;
-      pm_taxCO2eqSCC(t,regi) = 0;
-
-      pm_taxrevGHG0(t,regi) = 0;
-      pm_taxrevCO2Sector0(t,regi,emi_sectors) = 0;
-      pm_taxrevCO2LUC0(t,regi) = 0;
-      pm_taxrevNetNegEmi0(t,regi) = 0;
-    );
+    pm_taxCO2eqSum(t,regi) = 0;
+    pm_taxCO2eq(t,regi) = 0;
+    pm_taxCO2eqRegi(t,regi) = 0;
+    pm_taxCO2eqSCC(t,regi) = 0;
+
+    pm_taxrevGHG0(t,regi) = 0;
+    pm_taxrevCO2Sector0(t,regi,emi_sectors) = 0;
+    pm_taxrevCO2LUC0(t,regi) = 0;
+    pm_taxrevNetNegEmi0(t,regi) = 0;
   );
 
 *** Calculating the current emission levels...
@@ -920,25 +918,45 @@ $endIf.cm_implicitPePriceTarget
 ***---------------------------------------------------------------------------
 
 $ifThen.regiExoPrice not "%cm_regiExoPrice%" == "off"
-loop((ttot,ext_regi)$p47_exoCo2tax(ext_regi,ttot),
+
+*** setting exogenous CO2 prices from the input gdx
+$ifThen.regiExoPriceType "%cm_regiExoPrice%" == "gdx" 
+  pm_taxemiMkt(t,regi,emiMkt) = p47_tau_taxemiMkt(t,regi,emiMkt);
+  pm_taxCO2eq(t,regi) = pm_tau_CO2_tax_gdx(t,regi);
+  pm_taxCO2eqSum(t,regi) = pm_taxCO2eq(t,regi);
+*** Removing additional co2 tax parameters
+  pm_taxCO2eqRegi(t,regi) = 0;
+  pm_taxCO2eqSCC(t,regi) = 0;
+  pm_taxrevGHG0(t,regi) = 0;
+  pm_taxrevCO2Sector0(t,regi,emi_sectors) = 0;
+  pm_taxrevCO2LUC0(t,regi) = 0;
+  pm_taxrevNetNegEmi0(t,regi) = 0;
+display 'update of CO2 prices to exogenously given CO2 prices defined in the input gdx', pm_taxCO2eq, pm_taxemiMkt;
+
+*** setting exogenous CO2 prices from switch cm_regiExoPrice
+$else.regiExoPriceType
+loop((t,ext_regi)$p47_exoCo2tax(ext_regi,t),
+  loop(regi$regi_group(ext_regi,regi),
 *** Removing the existent co2 tax parameters for regions with exogenous set prices
-  pm_taxCO2eqSum(ttot,regi)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = 0;
-  pm_taxCO2eq(ttot,regi)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = 0;
-  pm_taxCO2eqRegi(ttot,regi)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = 0;
-  pm_taxCO2eqSCC(ttot,regi)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = 0;
+    pm_taxCO2eqSum(t,regi) = 0;
+    pm_taxCO2eq(t,regi) = 0;
+    pm_taxCO2eqRegi(t,regi) = 0;
+    pm_taxCO2eqSCC(t,regi) = 0;
 
-  pm_taxrevGHG0(ttot,regi)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = 0;
-  pm_taxrevCO2Sector0(ttot,regi,emi_sectors)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = 0;
-  pm_taxrevCO2LUC0(ttot,regi)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = 0;
-  pm_taxrevNetNegEmi0(ttot,regi)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = 0;
+    pm_taxrevGHG0(t,regi) = 0;
+    pm_taxrevCO2Sector0(t,regi,emi_sectors) = 0;
+    pm_taxrevCO2LUC0(t,regi) = 0;
+    pm_taxrevNetNegEmi0(t,regi) = 0;
 
-  pm_taxemiMkt(ttot,regi,emiMkt)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = 0;
+    pm_taxemiMkt(t,regi,emiMkt) = 0;
 
 *** setting exogenous CO2 prices
-  pm_taxCO2eq(ttot,regi)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = p47_exoCo2tax(ext_regi,ttot)*sm_DptCO2_2_TDpGtC;
-  pm_taxCO2eqSum(ttot,regi)$(regi_group(ext_regi,regi) and (ttot.val ge cm_startyear)) = pm_taxCO2eq(ttot,regi);
+    pm_taxCO2eq(t,regi) = p47_exoCo2tax(ext_regi,t)*sm_DptCO2_2_TDpGtC;
+    pm_taxCO2eqSum(t,regi) = pm_taxCO2eq(t,regi);
+  );
 );
 display 'update of CO2 prices due to exogenously given CO2 prices in p47_exoCo2tax', pm_taxCO2eq;
+$endIf.regiExoPriceType
 $endIf.regiExoPrice
 
 *** EOF ./modules/47_regipol/regiCarbonPrice/postsolve.gms
diff --git a/modules/47_regipol/regiCarbonPrice/preloop.gms b/modules/47_regipol/regiCarbonPrice/preloop.gms
@@ -120,5 +120,52 @@ pm_eta_conv("2010",regi,"tdsyngas")$(sameAs(regi,"DEU")) = 0.949;
 pm_eta_conv("2015",regi,"tdsyngas")$(sameAs(regi,"DEU")) = 0.962;
 pm_eta_conv(t,regi,"tdsyngas")$(sameAs(regi,"DEU") and t.val ge 2020) = 0.975;
 
+***---------------------------------------------------------------------------
+*** Exogenous CO2 tax level:
+***---------------------------------------------------------------------------
+
+*** initialize exogenous CO2 prices 
+$ifThen.regiExoPrice not "%cm_regiExoPrice%" == "off"
+
+*** setting exogenous CO2 prices from the input gdx
+$ifThen.regiExoPriceType "%cm_regiExoPrice%" == "gdx" 
+  pm_taxemiMkt(t,regi,emiMkt) = p47_tau_taxemiMkt(t,regi,emiMkt);
+  pm_taxCO2eq(t,regi) = pm_tau_CO2_tax_gdx(t,regi);
+  pm_taxCO2eqSum(t,regi) = pm_taxCO2eq(t,regi);
+*** Removing additional co2 tax parameters
+  pm_taxCO2eqRegi(t,regi) = 0;
+  pm_taxCO2eqSCC(t,regi) = 0;
+  pm_taxrevGHG0(t,regi) = 0;
+  pm_taxrevCO2Sector0(t,regi,emi_sectors) = 0;
+  pm_taxrevCO2LUC0(t,regi) = 0;
+  pm_taxrevNetNegEmi0(t,regi) = 0;
+display 'update of CO2 prices to exogenously given CO2 prices defined in the input gdx', pm_taxCO2eq, pm_taxemiMkt;
+
+*** setting exogenous CO2 prices from switch cm_regiExoPrice
+$else.regiExoPriceType
+loop((t,ext_regi)$p47_exoCo2tax(ext_regi,t),
+  loop(regi$regi_group(ext_regi,regi),
+*** Removing the existent co2 tax parameters for regions with exogenous set prices
+    pm_taxCO2eqSum(t,regi) = 0;
+    pm_taxCO2eq(t,regi) = 0;
+    pm_taxCO2eqRegi(t,regi) = 0;
+    pm_taxCO2eqSCC(t,regi) = 0;
+
+    pm_taxrevGHG0(t,regi) = 0;
+    pm_taxrevCO2Sector0(t,regi,emi_sectors) = 0;
+    pm_taxrevCO2LUC0(t,regi) = 0;
+    pm_taxrevNetNegEmi0(t,regi) = 0;
+
+    pm_taxemiMkt(t,regi,emiMkt) = 0;
+
+*** setting exogenous CO2 prices
+    pm_taxCO2eq(t,regi) = p47_exoCo2tax(ext_regi,t)*sm_DptCO2_2_TDpGtC;
+    pm_taxCO2eqSum(t,regi) = pm_taxCO2eq(t,regi);
+  );
+);
+display 'update of CO2 prices due to exogenously given CO2 prices in p47_exoCo2tax', pm_taxCO2eq;
+$endIf.regiExoPriceType
+$endIf.regiExoPrice
+
 *** EOF ./modules/47_regipol/regiCarbonPrice/preloop.gms
 
diff --git a/modules/47_regipol/regiCarbonPrice/sets.gms b/modules/47_regipol/regiCarbonPrice/sets.gms
@@ -15,7 +15,8 @@ emi_type_47 "emission type used in regional target"
   netGHG, netGHG_noBunkers, netGHG_noLULUCF_noBunkers, netGHG_LULUCFGrassi, netGHG_LULUCFGrassi_noBunkers, netGHG_LULUCFGrassi_intraRegBunker, netGHG_noLULUCF,
   grossEnCO2_noBunkers 
 /
-
+regiNativeEmiMktTarget(all_regi)             "native regions with emiMkt targets" / /
+
 *** Emission markets
 $ifThen.emiMkt not "%cm_emiMktTarget%" == "off" 
   regiEmiMktTarget(ext_regi)                   "regions with emiMkt targets" / /