Add a scalar for the extraction of SE|Gases from landfills.

core/declarations.gms

@@ -432,6 +432,8 @@ s_macChange                                           "maximum yearly increase o
 s_tgn_2_pgc                                           "conversion factor 100-yr GWP from TgN to PgCeq"
 s_tgch4_2_pgc                                         "conversion factor 100-yr GWP from TgCH4 to PgCeq"
 
+s_ch4landfill_mac                                     "Factor to calculate gas from landfills to be used as SE carrier"  /0.001638/
+
 sm_D2015_2_D2005                                      "Convert $2015 to $2005 by dividing by 1.2: 1/1.2 = 0.8333"      /0.8333/
 sm_DptCO2_2_TDpGtC                                    "Conversion multiplier to go from $/tCO2 to T$/GtC: 44/12/1000"     /0.00366667/ 
 

core/equations.gms

@@ -120,7 +120,7 @@ q_balSe(t,regi,enty2)$( entySE(enty2) AND (NOT (sameas(enty2,"seel"))) )..
          )
 ***   add (reused gas from waste landfills) to segas to not account for CO2 
 ***   emissions - it comes from biomass
-  + ( 0.001638 
+  + ( s_ch4landfill_mac
     * ( vm_macBase(t,regi,"ch4wstl")
       - vm_emiMacSector(t,regi,"ch4wstl")
       )