diff --git a/test/config.myopic.yaml b/test/config.myopic.yaml
index 38d4328a..40daced7 100644
--- a/test/config.myopic.yaml
+++ b/test/config.myopic.yaml
@@ -1,148 +1,28 @@
-run: test-myopic  # use this to keep track of runs with different settings
-foresight: myopic # options are overnight, myopic, perfect (perfect is not yet implemented)
+run: test-myopic
+foresight: myopic
 
 scenario:
-  lv: # allowed transmission line volume expansion, can be any float >= 1.0 (today) or "opt"
+  lv:
     - 1.5
-  clusters: # number of nodes in Europe, any integer between 37 (1 node per country-zone) and several hundred
+  clusters:
     - 5
-  sector_opts: # this is where the main scenario settings are
+  sector_opts:
     - 191H-T-H-B-I-A-solar+p3-dist1
-  planning_horizons: # investment years for myopic and perfect; or costs year for overnight
+  planning_horizons:
     - 2030
     - 2040
     - 2050
 
 snapshots:
-  # arguments to pd.date_range
   start: "2013-03-01"
   end: "2013-04-01"
-  inclusive: left # end is not inclusive
 
 atlite:
   cutout: ../pypsa-eur/cutouts/be-03-2013-era5.nc
 
-existing_capacities:
-  grouping_years: [1980, 1985, 1990, 1995, 2000, 2005, 2010, 2015, 2019]
-
-sector:
-  co2_vent: true
-  SMR: true
-  regional_co2_sequestration_potential:
-    enable: false
-  co2_sequestration_potential: 200  #MtCO2/a sequestration potential for Europe
-  co2_sequestration_cost: 10   #EUR/tCO2 for sequestration of CO2
-  co2_network: false
-  cc_fraction: 0.9  # default fraction of CO2 captured with post-combustion capture
-  hydrogen_underground_storage: true
-  hydrogen_underground_storage_locations:
-    # - onshore  # more than 50 km from sea
-    - nearshore  # within 50 km of sea
-    # - offshore
-  use_fischer_tropsch_waste_heat: true
-  use_fuel_cell_waste_heat: true
-  electricity_distribution_grid: true
-  electricity_distribution_grid_cost_factor: 1.0  #multiplies cost in data/costs.csv
-  electricity_grid_connection: true  # only applies to onshore wind and utility PV
-  H2_network: true
-  gas_network: false
-  H2_retrofit: false  # if set to True existing gas pipes can be retrofitted to H2 pipes
-  # according to hydrogen backbone strategy (April, 2020) p.15
-  # https://gasforclimate2050.eu/wp-content/uploads/2020/07/2020_European-Hydrogen-Backbone_Report.pdf
-  # 60% of original natural gas capacity could be used in cost-optimal case as H2 capacity
-  H2_retrofit_capacity_per_CH4: 0.6  # ratio for H2 capacity per original CH4 capacity of retrofitted pipelines
-  gas_network_connectivity_upgrade: 1 # https://networkx.org/documentation/stable/reference/algorithms/generated/networkx.algorithms.connectivity.edge_augmentation.k_edge_augmentation.html#networkx.algorithms.connectivity.edge_augmentation.k_edge_augmentation
-  gas_distribution_grid: true
-  gas_distribution_grid_cost_factor: 1.0  #multiplies cost in data/costs.csv
-  biomass_transport: false  # biomass transport between nodes
-  conventional_generation: # generator : carrier
-    OCGT: gas
-  biomass_boiler: false
-  biomass_to_liquid: false
-  biosng: false
-
-
-industry:
-  St_primary_fraction: # 0.3 # fraction of steel produced via primary route versus secondary route (scrap+EAF); today fraction is 0.6
-    2020: 0.6
-    2025: 0.55
-    2030: 0.5
-    2035: 0.45
-    2040: 0.4
-    2045: 0.35
-    2050: 0.3
-  DRI_fraction: # 1 # fraction of the primary route converted to DRI + EAF
-    2020: 0
-    2025: 0
-    2030: 0.05
-    2035: 0.2
-    2040: 0.4
-    2045: 0.7
-    2050: 1
-  H2_DRI: 1.7   #H2 consumption in Direct Reduced Iron (DRI),  MWh_H2,LHV/ton_Steel from 51kgH2/tSt in Vogl et al (2018) doi:10.1016/j.jclepro.2018.08.279
-  elec_DRI: 0.322   #electricity consumption in Direct Reduced Iron (DRI) shaft, MWh/tSt HYBRIT brochure https://ssabwebsitecdn.azureedge.net/-/media/hybrit/files/hybrit_brochure.pdf
-  Al_primary_fraction: # 0.2 # fraction of aluminium produced via the primary route versus scrap; today fraction is 0.4
-    2020: 0.4
-    2025: 0.375
-    2030: 0.35
-    2035: 0.325
-    2040: 0.3
-    2045: 0.25
-    2050: 0.2
-  MWh_CH4_per_tNH3_SMR: 10.8 # 2012's demand from https://ec.europa.eu/docsroom/documents/4165/attachments/1/translations/en/renditions/pdf
-  MWh_elec_per_tNH3_SMR: 0.7 # same source, assuming 94-6% split methane-elec of total energy demand 11.5 MWh/tNH3
-  MWh_H2_per_tNH3_electrolysis: 6.5 # from https://doi.org/10.1016/j.joule.2018.04.017, around 0.197 tH2/tHN3 (>3/17 since some H2 lost and used for energy)
-  MWh_elec_per_tNH3_electrolysis: 1.17 # from https://doi.org/10.1016/j.joule.2018.04.017 Table 13 (air separation and HB)
-  NH3_process_emissions: 24.5 # in MtCO2/a from SMR for H2 production for NH3 from UNFCCC for 2015 for EU28
-  petrochemical_process_emissions: 25.5 # in MtCO2/a for petrochemical and other from UNFCCC for 2015 for EU28
-  HVC_primary_fraction: 1. # fraction of today's HVC produced via primary route
-  HVC_mechanical_recycling_fraction: 0. # fraction of today's HVC produced via mechanical recycling
-  HVC_chemical_recycling_fraction: 0. # fraction of today's HVC produced via chemical recycling
-  HVC_production_today: 52. # MtHVC/a from DECHEMA (2017), Figure 16, page 107; includes ethylene, propylene and BTX
-  MWh_elec_per_tHVC_mechanical_recycling: 0.547 # from SI of https://doi.org/10.1016/j.resconrec.2020.105010, Table S5, for HDPE, PP, PS, PET. LDPE would be 0.756.
-  MWh_elec_per_tHVC_chemical_recycling: 6.9 # Material Economics (2019), page 125; based on pyrolysis and electric steam cracking
-  chlorine_production_today: 9.58 # MtCl/a from DECHEMA (2017), Table 7, page 43
-  MWh_elec_per_tCl: 3.6 # DECHEMA (2017), Table 6, page 43
-  MWh_H2_per_tCl: -0.9372  # DECHEMA (2017), page 43; negative since hydrogen produced in chloralkali process
-  methanol_production_today: 1.5 # MtMeOH/a from DECHEMA (2017), page 62
-  MWh_elec_per_tMeOH: 0.167 # DECHEMA (2017), Table 14, page 65
-  MWh_CH4_per_tMeOH: 10.25 # DECHEMA (2017), Table 14, page 65
-  hotmaps_locate_missing: false
-  reference_year: 2015
-  # references:
-  # DECHEMA (2017): https://dechema.de/dechema_media/Downloads/Positionspapiere/Technology_study_Low_carbon_energy_and_feedstock_for_the_European_chemical_industry-p-20002750.pdf
-  # Material Economics (2019): https://materialeconomics.com/latest-updates/industrial-transformation-2050
-
-costs:
-  year: 2030
-  version: v0.5.0
-  lifetime: 25 #default lifetime
-  # From a Lion Hirth paper, also reflects average of Noothout et al 2016
-  discountrate: 0.07
-  # [EUR/USD] ECB: https://www.ecb.europa.eu/stats/exchange/eurofxref/html/eurofxref-graph-usd.en.html # noqa: E501
-  USD2013_to_EUR2013: 0.7532
-
-  # Marginal and capital costs can be overwritten
-  # capital_cost:
-  #   onwind: 500
-  marginal_cost:
-    solar: 0.01
-    onwind: 0.015
-    offwind: 0.015
-    hydro: 0.
-    H2: 0.
-    battery: 0.
-
-  emission_prices: # only used with the option Ep (emission prices)
-    co2: 0.
-
-  lines:
-    length_factor: 1.25 #to estimate offwind connection costs
-
-
 solving:
   solver:
     name: cbc
     options: cbc-default
-  mem: 4000 #memory in MB; 20 GB enough for 50+B+I+H2; 100 GB for 181+B+I+H2
+  mem: 4000
 
diff --git a/test/config.overnight.yaml b/test/config.overnight.yaml
index c0e6f57b..7214906b 100644
--- a/test/config.overnight.yaml
+++ b/test/config.overnight.yaml
@@ -1,53 +1,29 @@
-run: test-overnight  # use this to keep track of runs with different settings
-foresight: overnight # options are overnight, myopic, perfect (perfect is not yet implemented)
+run: test-overnight
+foresight: overnight
 
 scenario:
-  lv: # allowed transmission line volume expansion, can be any float >= 1.0 (today) or "opt"
+  lv:
     - 1.5
-  clusters: # number of nodes in Europe, any integer between 37 (1 node per country-zone) and several hundred
+  clusters:
     - 5
-  sector_opts: # this is where the main scenario settings are
+  sector_opts:
     - CO2L0-191H-T-H-B-I-A-solar+p3-dist1
-  planning_horizons: # investment years for myopic and perfect; or costs year for overnight
+  planning_horizons:
     - 2030
-  # for example, set to [2020, 2030, 2040, 2050] for myopic foresight
 
 snapshots:
-  # arguments to pd.date_range
   start: "2013-03-01"
   end: "2013-04-01"
-  inclusive: left # end is not inclusive
 
 atlite:
   cutout: ../pypsa-eur/cutouts/be-03-2013-era5.nc
 
 sector:
-  co2_vent: true
-  SMR: true
-  regional_co2_sequestration_potential:
-    enable: false
-  co2_sequestration_potential: 200  #MtCO2/a sequestration potential for Europe
-  co2_sequestration_cost: 10   #EUR/tCO2 for sequestration of CO2
-  co2_network: false
-  cc_fraction: 0.9  # default fraction of CO2 captured with post-combustion capture
-  hydrogen_underground_storage: true
-  hydrogen_underground_storage_locations:
-    # - onshore  # more than 50 km from sea
-    - nearshore  # within 50 km of sea
-    # - offshore
-  use_fischer_tropsch_waste_heat: true
-  use_fuel_cell_waste_heat: true
-  electricity_distribution_grid: true
-  electricity_distribution_grid_cost_factor: 1.0  #multiplies cost in data/costs.csv
-  electricity_grid_connection: true  # only applies to onshore wind and utility PV
-  H2_network: true
   gas_network: true
-  H2_retrofit: true # if set to True existing gas pipes can be retrofitted to H2 pipes
-  biomass_boiler: false
+  H2_retrofit: true
 
 solving:
   solver:
     name: cbc
     options: cbc-default
-  mem: 4000 #memory in MB; 20 GB enough for 50+B+I+H2; 100 GB for 181+B+I+H2
-
+  mem: 4000