diff --git a/message_ix_models/data/costs/energy/cost_reduction.csv b/message_ix_models/data/costs/energy/cost_reduction.csv
index 5f6cadee9b..c32d3f7c67 100755
--- a/message_ix_models/data/costs/energy/cost_reduction.csv
+++ b/message_ix_models/data/costs/energy/cost_reduction.csv
@@ -1,99 +1,99 @@
-# Cost reduction in 2100,,,,,,
-# ,,,,,,
-# Units: %  ,,,,,,
-#,,,,,,
-# Data is copied from Sheet1 in https://github.com/iiasa/message_data/blob/dev/data/model/investment_cost/SSP_technology_learning.xlsx,,,,,,
-# There are some manually changed assumptions to the original GEA data in the spreadsheet (can be seen in the spreadsheet as marked in yellow),,,,,,
-# The initial copied data can be found in gea_reduction_rates.csv,,,,,,
-# This file renames the learning rates from GEAL to low and GEAM to medium and GEAH to high,,,,,,
-message_technology,technology_type,very_low,low,medium,high,very_high
-bio_istig,Biomass,0,0.1,0.3,0.4,0.5
-bio_istig_ccs,CCS,0,0.1,0.3,0.4,0.6
-bio_ppl,Biomass,0,0.1,0.2,0.3,0.4
-bio_ppl_co2scr,CCS,0,0,0,0.3,0.4
-biomass_i,Biomass,0,0,0,0,0
-c_ppl_co2scr,CCS,0,0,0,0.3,0.4
-coal_adv,Coal,0,0.1,0.3,0.5,0.7
-coal_adv_ccs,CCS,0,0.1,0.3,0.5,0.7
-coal_i,Coal,0,0,0,0,0
-coal_ppl,Coal,0,0,0.2,0.5,0.7
-coal_ppl_u,Coal,0,0,0,0,0
-csp_sm1_ppl,Renewable,0.15,0.3,0.3,0.5,0.7
-csp_sm3_ppl,Renewable,0.15,0.3,0.3,0.5,0.7
-elec_i,NA,0,0,0,0,0
-eth_bio,Biomass,0,0.27,0.27,0.4,0.55
-eth_bio_ccs,CCS,0,0.27,0.27,0.4,0.55
-eth_i,Biomass,0,0,0,0,0
-foil_i,Gas/Oil,0,0,0,0,0
-g_ppl_co2scr,CCS,0,0,0,0.3,0.4
-gas_cc,Gas/Oil,0.1,0.2,0.29,0.38,0.5
-gas_cc_ccs,CCS,0.1,0.2,0.29,0.5,0.7
-gas_ct,Gas/Oil,0.1,0.2,0.29,0.38,0.5
-gas_i,Gas/Oil,0,0,0,0,0
-gas_ppl,Gas/Oil,0.1,0.2,0.29,0.38,0.5
-geo_hpl,Renewable,0.1,0.15,0.18,0.25,0.35
-geo_ppl,Renewable,0,0.1,0.18,0.25,0.35
-h2_bio,Biomass,0,0.25,0.4,0.5,0.7
-h2_bio_ccs,CCS,0,0.25,0.4,0.5,0.7
-h2_coal,Coal,0,0.25,0.4,0.4,0.5
-h2_coal_ccs,CCS,0,0.25,0.4,0.4,0.5
-h2_elec,Renewable,0,0,0.1,0.2,0.3
-h2_i,NA,0,0,0,0,0
-h2_smr,Gas/Oil,0,0.25,0.4,0.5,0.7
-h2_smr_ccs,CCS,0,0.25,0.4,0.5,0.7
-heat_i,NA,0,0,0,0,0
-hp_el_i,Renewable,0.1,0.2,0.5,0.5,0.6
-hp_gas_i,Gas/Oil,0.1,0.2,0.4,0.4,0.5
-hydro_hc,Renewable,0,0,0,0,0
-hydro_lc,Renewable,0,0,0,0,0
-igcc,Coal,0,0.1,0.3,0.5,0.7
-igcc_ccs,CCS,0,0.1,0.3,0.5,0.7
-liq_bio,Biomass,0.15,0.27,0.27,0.4,0.55
-liq_bio_ccs,CCS,0.15,0.27,0.27,0.4,0.55
-loil_i,Gas/Oil,0,0,0,0,0
-meth_coal,Coal,0,0.05,0.1,0.15,0.2
-meth_coal_ccs,CCS,0,0.05,0.1,0.15,0.2
-meth_i,Coal,0,0,0,0,0
-meth_ng,Gas/Oil,0,0.05,0.1,0.15,0.2
-meth_ng_ccs,CCS,0,0.05,0.1,0.15,0.2
-nuc_hc,Nuclear,0,0,0.15,0.3,0.45
-nuc_lc,Nuclear,0,0,0,0,0
-solar_i,Renewable,0.1,0.2,0.6,0.9,0.95
-solar_pv_I,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_pv_RC,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res_hist_2000,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res_hist_2005,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res_hist_2010,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res_hist_2015,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res_hist_2020,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res1,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res2,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res3,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res4,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res5,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res6,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res7,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_res8,Renewable,0.15,0.3,0.7,0.9,0.95
-solar_th_ppl,Renewable,0.15,0.3,0.3,0.5,0.7
-stor_ppl,Renewable,0.15,0.3,0.7,0.9,0.95
-syn_liq,Coal,0,0.05,0.1,0.15,0.2
-syn_liq_ccs,CCS,0,0.05,0.1,0.15,0.2
-wind_ref_hist_2000,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_ref_hist_2005,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_ref_hist_2010,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_ref_hist_2015,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_ref_hist_2020,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_ref1,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_ref2,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_ref3,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_ref4,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_ref5,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_res_hist_2000,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_res_hist_2005,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_res_hist_2010,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_res_hist_2015,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_res_hist_2020,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_res1,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_res2,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_res3,Renewable,0.15,0.3,0.53,0.65,0.75
-wind_res4,Renewable,0.15,0.3,0.53,0.65,0.75
\ No newline at end of file
+# Cost reduction in 2100,,,,,,,
+# ,,,,,,,
+# Units: %  ,,,,,,,
+#,,,,,,,
+# Data is copied from Sheet1 in https://github.com/iiasa/message_data/blob/dev/data/model/investment_cost/SSP_technology_learning.xlsx,,,,,,,
+# There are some manually changed assumptions to the original GEA data in the spreadsheet (can be seen in the spreadsheet as marked in yellow),,,,,,,
+# The initial copied data can be found in gea_reduction_rates.csv,,,,,,,
+# This file renames the learning rates from GEAL to low and GEAM to medium and GEAH to high,,,,,,,
+message_technology,technology_type,very_low,low,low_medium,medium,high,very_high
+bio_istig,Biomass,0,0.1,0.3,0.3,0.4,0.5
+bio_istig_ccs,CCS,0,0.1,0.3,0.3,0.4,0.6
+bio_ppl,Biomass,0,0.1,0.2,0.2,0.3,0.4
+bio_ppl_co2scr,CCS,0,0,0,0,0.3,0.4
+biomass_i,Biomass,0,0,0,0,0,0
+c_ppl_co2scr,CCS,0,0,0,0,0.3,0.4
+coal_adv,Coal,0,0.1,0.3,0.3,0.5,0.7
+coal_adv_ccs,CCS,0,0.1,0.3,0.3,0.5,0.7
+coal_i,Coal,0,0,0,0,0,0
+coal_ppl,Coal,0,0,0.2,0.2,0.5,0.7
+coal_ppl_u,Coal,0,0,0,0,0,0
+csp_sm1_ppl,Renewable,0.15,0.3,0.3,0.3,0.5,0.7
+csp_sm3_ppl,Renewable,0.15,0.3,0.3,0.3,0.5,0.7
+elec_i,NA,0,0,0,0,0,0
+eth_bio,Biomass,0,0.27,0.27,0.27,0.4,0.55
+eth_bio_ccs,CCS,0,0.27,0.27,0.27,0.4,0.55
+eth_i,Biomass,0,0,0,0,0,0
+foil_i,Gas/Oil,0,0,0,0,0,0
+g_ppl_co2scr,CCS,0,0,0,0,0.3,0.4
+gas_cc,Gas/Oil,0.1,0.2,0.29,0.29,0.38,0.5
+gas_cc_ccs,CCS,0.1,0.2,0.29,0.29,0.5,0.7
+gas_ct,Gas/Oil,0.1,0.2,0.29,0.29,0.38,0.5
+gas_i,Gas/Oil,0,0,0,0,0,0
+gas_ppl,Gas/Oil,0.1,0.2,0.29,0.29,0.38,0.5
+geo_hpl,Renewable,0.1,0.15,0.18,0.18,0.25,0.35
+geo_ppl,Renewable,0,0.1,0.18,0.18,0.25,0.35
+h2_bio,Biomass,0,0.25,0.4,0.4,0.5,0.7
+h2_bio_ccs,CCS,0,0.25,0.4,0.4,0.5,0.7
+h2_coal,Coal,0,0.25,0.4,0.4,0.4,0.5
+h2_coal_ccs,CCS,0,0.25,0.4,0.4,0.4,0.5
+h2_elec,Renewable,0,0,0.1,0.1,0.2,0.3
+h2_i,NA,0,0,0,0,0,0
+h2_smr,Gas/Oil,0,0.25,0.4,0.4,0.5,0.7
+h2_smr_ccs,CCS,0,0.25,0.4,0.4,0.5,0.7
+heat_i,NA,0,0,0,0,0,0
+hp_el_i,Renewable,0.1,0.2,0.5,0.5,0.5,0.6
+hp_gas_i,Gas/Oil,0.1,0.2,0.4,0.4,0.4,0.5
+hydro_hc,Renewable,0,0,0,0,0,0
+hydro_lc,Renewable,0,0,0,0,0,0
+igcc,Coal,0,0.1,0.3,0.3,0.5,0.7
+igcc_ccs,CCS,0,0.1,0.3,0.3,0.5,0.7
+liq_bio,Biomass,0.15,0.27,0.27,0.27,0.4,0.55
+liq_bio_ccs,CCS,0.15,0.27,0.27,0.27,0.4,0.55
+loil_i,Gas/Oil,0,0,0,0,0,0
+meth_coal,Coal,0,0.05,0.1,0.1,0.15,0.2
+meth_coal_ccs,CCS,0,0.05,0.1,0.1,0.15,0.2
+meth_i,Coal,0,0,0,0,0,0
+meth_ng,Gas/Oil,0,0.05,0.1,0.1,0.15,0.2
+meth_ng_ccs,CCS,0,0.05,0.1,0.1,0.15,0.2
+nuc_hc,Nuclear,0,0,0.15,0.15,0.3,0.45
+nuc_lc,Nuclear,0,0,0,0,0,0
+solar_i,Renewable,0.1,0.2,0.6,0.6,0.9,0.95
+solar_pv_I,Renewable,0.15,0.3,0.7,0.7,0.9,0.95
+solar_pv_RC,Renewable,0.15,0.3,0.7,0.7,0.9,0.95
+solar_res_hist_2000,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res_hist_2005,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res_hist_2010,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res_hist_2015,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res_hist_2020,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res1,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res2,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res3,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res4,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res5,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res6,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res7,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_res8,Renewable,0.15,0.3,0.5,0.7,0.9,0.95
+solar_th_ppl,Renewable,0.15,0.3,0.3,0.3,0.5,0.7
+stor_ppl,Renewable,0.15,0.3,0.7,0.7,0.9,0.95
+syn_liq,Coal,0,0.05,0.1,0.1,0.15,0.2
+syn_liq_ccs,CCS,0,0.05,0.1,0.1,0.15,0.2
+wind_ref_hist_2000,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_ref_hist_2005,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_ref_hist_2010,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_ref_hist_2015,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_ref_hist_2020,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_ref1,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_ref2,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_ref3,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_ref4,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_ref5,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_res_hist_2000,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_res_hist_2005,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_res_hist_2010,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_res_hist_2015,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_res_hist_2020,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_res1,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_res2,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_res3,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
+wind_res4,Renewable,0.15,0.3,0.53,0.53,0.65,0.75
diff --git a/message_ix_models/data/costs/energy/scenarios_reduction.csv b/message_ix_models/data/costs/energy/scenarios_reduction.csv
index 5f2252b951..d9a964f839 100755
--- a/message_ix_models/data/costs/energy/scenarios_reduction.csv
+++ b/message_ix_models/data/costs/energy/scenarios_reduction.csv
@@ -43,29 +43,29 @@ igcc_ccs,medium,medium,low,high,high,medium
 liq_bio,high,medium,low,high,medium,medium
 liq_bio_ccs,high,medium,low,high,medium,medium
 loil_i,high,medium,low,medium,high,medium
-meth_coal,medium,medium,high,medium,medium,medium
-meth_coal_ccs,medium,medium,high,medium,medium,medium
+meth_coal,very_low,medium,very_high,medium,low,medium
+meth_coal_ccs,very_low,medium,very_high,medium,low,medium
 meth_i,medium,medium,high,medium,medium,medium
 meth_ng,high,medium,low,medium,high,medium
 meth_ng_ccs,high,medium,low,medium,high,medium
-nuc_hc,medium,medium,low,high,high,medium
-nuc_lc,medium,medium,low,high,high,medium
+nuc_hc,medium,medium,low,high,very_high,medium
+nuc_lc,medium,medium,low,high,very_high,medium
 solar_i,high,medium,low,high,medium,medium
 solar_pv_I,high,medium,low,high,medium,very_high
 solar_pv_RC,high,medium,low,high,medium,very_high
-solar_res_hist_2000,high,medium,low,high,medium,very_high
-solar_res_hist_2005,high,medium,low,high,medium,very_high
-solar_res_hist_2010,high,medium,low,high,medium,very_high
-solar_res_hist_2015,high,medium,low,high,medium,very_high
-solar_res_hist_2020,high,medium,low,high,medium,very_high
-solar_res1,high,medium,low,high,medium,very_high
-solar_res2,high,medium,low,high,medium,very_high
-solar_res3,high,medium,low,high,medium,very_high
-solar_res4,high,medium,low,high,medium,very_high
-solar_res5,high,medium,low,high,medium,very_high
-solar_res6,high,medium,low,high,medium,very_high
-solar_res7,high,medium,low,high,medium,very_high
-solar_res8,high,medium,low,high,medium,very_high
+solar_res_hist_2000,high,medium,low,high,low_medium,very_high
+solar_res_hist_2005,high,medium,low,high,low_medium,very_high
+solar_res_hist_2010,high,medium,low,high,low_medium,very_high
+solar_res_hist_2015,high,medium,low,high,low_medium,very_high
+solar_res_hist_2020,high,medium,low,high,low_medium,very_high
+solar_res1,high,medium,low,high,low_medium,very_high
+solar_res2,high,medium,low,high,low_medium,very_high
+solar_res3,high,medium,low,high,low_medium,very_high
+solar_res4,high,medium,low,high,low_medium,very_high
+solar_res5,high,medium,low,high,low_medium,very_high
+solar_res6,high,medium,low,high,low_medium,very_high
+solar_res7,high,medium,low,high,low_medium,very_high
+solar_res8,high,medium,low,high,low_medium,very_high
 solar_th_ppl,high,medium,low,high,medium,very_high
 stor_ppl,high,medium,low,high,medium,very_high
 syn_liq,medium,medium,high,medium,medium,medium
@@ -88,4 +88,4 @@ wind_res_hist_2020,high,medium,low,high,medium,very_high
 wind_res1,high,medium,low,high,medium,very_high
 wind_res2,high,medium,low,high,medium,very_high
 wind_res3,high,medium,low,high,medium,very_high
-wind_res4,high,medium,low,high,medium,very_high
\ No newline at end of file
+wind_res4,high,medium,low,high,medium,very_high