Fix issue with materials and cooling CCS technologies becoming cheaper than non-CCS counterpart

doc/whatsnew.rst

@@ -62,6 +62,7 @@ Investment and fixed costs
 - Change cost decay to reach reduction percentage specified on the year 2100 (:pull:`227`).
 - Add `cooling` technology variant/module (:pull:`222`).
 - Add functionality to specify cost reduction values and cost reduction scenarios in a module (:issue:`251`, :pull:`255`).
+- Fix technology mapping of ammonia CCS technologies in materials module (:pull:`258`).
 
 Others
 ------

message_ix_models/data/costs/cooling/tech_map.csv

@@ -7,10 +7,10 @@ bio_istig__air,energy,bio_istig,220,0,2015
 bio_istig__cl_fresh,energy,bio_istig,100,0,2015
 bio_istig__ot_fresh,energy,bio_istig,0.4,0,2015
 bio_istig__ot_saline,energy,bio_istig,0.3,0,2015
-bio_istig_ccs__air,energy,bio_istig_ccs,220,0,2015
-bio_istig_ccs__cl_fresh,energy,bio_istig_ccs,100,0,2015
-bio_istig_ccs__ot_fresh,energy,bio_istig_ccs,0.4,0,2015
-bio_istig_ccs__ot_saline,energy,bio_istig_ccs,0.3,0,2015
+bio_istig_ccs__air,energy,bio_istig,220,0,2015
+bio_istig_ccs__cl_fresh,energy,bio_istig,100,0,2015
+bio_istig_ccs__ot_fresh,energy,bio_istig,0.4,0,2015
+bio_istig_ccs__ot_saline,energy,bio_istig,0.3,0,2015
 bio_ppl__air,energy,bio_ppl,220,0,2015
 bio_ppl__cl_fresh,energy,bio_ppl,100,0,2015
 bio_ppl__ot_fresh,energy,bio_ppl,0.4,0,2015
@@ -19,10 +19,10 @@ coal_adv__air,energy,coal_adv,220,0,2015
 coal_adv__cl_fresh,energy,coal_adv,100,0,2015
 coal_adv__ot_fresh,energy,coal_adv,0.4,0,2015
 coal_adv__ot_saline,energy,coal_adv,0.3,0,2015
-coal_adv_ccs__air,energy,coal_adv_ccs,220,0,2015
-coal_adv_ccs__cl_fresh,energy,coal_adv_ccs,160,0,2015
-coal_adv_ccs__ot_fresh,energy,coal_adv_ccs,0.4,0,2015
-coal_adv_ccs__ot_saline,energy,coal_adv_ccs,0.3,0,2015
+coal_adv_ccs__air,energy,coal_adv,220,0,2015
+coal_adv_ccs__cl_fresh,energy,coal_adv,160,0,2015
+coal_adv_ccs__ot_fresh,energy,coal_adv,0.4,0,2015
+coal_adv_ccs__ot_saline,energy,coal_adv,0.3,0,2015
 coal_ppl__air,energy,coal_ppl,220,0,2015
 coal_ppl__cl_fresh,energy,coal_ppl,100,0,2015
 coal_ppl__ot_fresh,energy,coal_ppl,0.4,0,2015
@@ -43,10 +43,10 @@ gas_cc__air,energy,gas_cc,140,0,2015
 gas_cc__cl_fresh,energy,gas_cc,50,0,2015
 gas_cc__ot_fresh,energy,gas_cc,0.2,0,2015
 gas_cc__ot_saline,energy,gas_cc,0.15,0,2015
-gas_cc_ccs__air,energy,gas_cc_ccs,220,0,2015
-gas_cc_ccs__cl_fresh,energy,gas_cc_ccs,160,0,2015
-gas_cc_ccs__ot_fresh,energy,gas_cc_ccs,0.4,0,2015
-gas_cc_ccs__ot_saline,energy,gas_cc_ccs,0.3,0,2015
+gas_cc_ccs__air,energy,gas_cc,220,0,2015
+gas_cc_ccs__cl_fresh,energy,gas_cc,160,0,2015
+gas_cc_ccs__ot_fresh,energy,gas_cc,0.4,0,2015
+gas_cc_ccs__ot_saline,energy,gas_cc,0.3,0,2015
 gas_hpl__air,energy,gas_hpl,220,0,2015
 gas_hpl__cl_fresh,energy,gas_hpl,100,0,2015
 gas_hpl__ot_fresh,energy,gas_hpl,0.4,0,2015
@@ -67,10 +67,10 @@ igcc__air,energy,igcc,140,0,2015
 igcc__cl_fresh,energy,igcc,50,0,2015
 igcc__ot_fresh,energy,igcc,0.4,0,2015
 igcc__ot_saline,energy,igcc,0.3,0,2015
-igcc_ccs__air,energy,igcc_ccs,220,0,2015
-igcc_ccs__cl_fresh,energy,igcc_ccs,100,0,2015
-igcc_ccs__ot_fresh,energy,igcc_ccs,0.4,0,2015
-igcc_ccs__ot_saline,energy,igcc_ccs,0.3,0,2015
+igcc_ccs__air,energy,igcc,220,0,2015
+igcc_ccs__cl_fresh,energy,igcc,100,0,2015
+igcc_ccs__ot_fresh,energy,igcc,0.4,0,2015
+igcc_ccs__ot_saline,energy,igcc,0.3,0,2015
 loil_cc__air,energy,loil_cc,140,0,2015
 loil_cc__cl_fresh,energy,loil_cc,50,0,2015
 loil_cc__ot_fresh,energy,loil_cc,0.2,0,2015

message_ix_models/data/costs/materials/tech_map.csv

@@ -13,7 +13,7 @@ agg_ref,"","",,,
 atm_distillation_ref,"","",30.25954286,0.021,1980
 bf_steel,"","",90.65,0.1,1990
 biomass_NH3,energy,igcc,3646.957331,0.036,1995
-biomass_NH3_ccs,energy,igcc_ccs,3876.680306,0.038,1995
+biomass_NH3_ccs,energy,igcc,3876.680306,0.038,1995
 bof_steel,"","",160.71,0.089,1990
 catalytic_cracking_ref,"","",181.5572571,0.022,1980
 catalytic_reforming_ref,"","",181.5572571,0.003,1980
@@ -22,7 +22,7 @@ clinker_dry_cement,"","",131.5,0.001,1980
 clinker_wet_ccs_cement,"","",180,0.167,1980
 clinker_wet_cement,"","",131.5,0.001,1980
 coal_NH3,energy,igcc,2917.565865,0.036,1995
-coal_NH3_ccs,energy,igcc_ccs,3087.128546,0.038,1995
+coal_NH3_ccs,energy,igcc,3087.128546,0.038,1995
 cokeoven_steel,"","",21.51,0.001,1990
 coking_ref,"","",235.4813143,0.021,1980
 dheat_aluminum,energy,heat_i,27.69,0.271,2030
@@ -50,7 +50,7 @@ feedstock_t/d,"","",,,
 finishing_aluminum,"","",,,
 finishing_steel,"","",228.92,0.1,1990
 fueloil_NH3,energy,igcc,3282.261598,0.036,1995
-fueloil_NH3_ccs,energy,igcc_ccs,3473.019614,0.038,1995
+fueloil_NH3_ccs,energy,igcc,3473.019614,0.038,1995
 furnace_biomass_aluminum,energy,biomass_i,154.32,0.267,1980
 furnace_biomass_cement,energy,biomass_i,154.32,0.267,1980
 furnace_biomass_petro,energy,biomass_i,154.32,0.267,1980
@@ -108,7 +108,7 @@ furnace_methanol_refining,energy,meth_i,57.4099999999999,0.165,2020
 furnace_methanol_resins,energy,meth_i,57.4099999999999,0.165,2020
 furnace_methanol_steel,energy,meth_i,57.4099999999999,0.165,2020
 gas_NH3,energy,igcc,2188.174399,0.036,1995
-gas_NH3_ccs,energy,igcc_ccs,2935.967579,0.038,1995
+gas_NH3_ccs,energy,igcc,2935.967579,0.038,1995
 gas_processing_petro,"","",,,
 grinding_ballmill_cement,"","",65.75,0.001,1980
 grinding_vertmill_cement,"","",85.75,0.001,1980

message_ix_models/tests/tools/costs/test_projections.py

@@ -114,3 +114,36 @@ def test_bare_res(request, test_context, node):
 
     # Scenario solves with the added data
     scenario.solve()
+
+
+@pytest.mark.parametrize("module", ("energy", "materials", "cooling"))
+def test_ccs_costs(module):
+    cfg = Config(module=module, method="gdp")
+
+    # Function runs without error
+    result = create_cost_projections(cfg)
+
+    # Get inv cost
+    inv = result["inv_cost"]
+
+    # Get list of technologies with "ccs" in the name
+    ccs_tech = inv[inv.technology.str.contains("ccs")].technology.unique()
+
+    # Create array with "_ccs" removed from the technology names
+    tech = [t.replace("_ccs", "") for t in ccs_tech]
+
+    # Compare investment costs for technologies with and without CCS
+    non_ccs = (
+        inv[inv.technology.isin(tech)]
+        .drop(columns=["scenario_version", "unit"])
+        .set_index(["scenario", "node_loc", "year_vtg", "technology"])
+    )
+    ccs = (
+        inv[inv.technology.isin(ccs_tech)]
+        .assign(technology=lambda x: x.technology.str.replace("_ccs", ""))
+        .drop(columns=["scenario_version", "unit"])
+        .set_index(["scenario", "node_loc", "year_vtg", "technology"])
+    )
+
+    # Assert that costs for CCS technologies are greater than for non-CCS technologies
+    assert ccs.sub(non_ccs).dropna().ge(0).all().all()