diff --git a/rules/build_electricity.smk b/rules/build_electricity.smk
index 9414c25b..88e7c548 100644
--- a/rules/build_electricity.smk
+++ b/rules/build_electricity.smk
@@ -277,6 +277,7 @@ rule add_electricity:
         countries=config["countries"],
         renewable=config["renewable"],
         electricity=config["electricity"],
+        conventional=config.get("conventional", {})
         costs=config["costs"],
     input:
         **{
diff --git a/scripts/add_electricity.py b/scripts/add_electricity.py
index c3e847ce..a3e033e7 100755
--- a/scripts/add_electricity.py
+++ b/scripts/add_electricity.py
@@ -135,7 +135,7 @@ def _add_missing_carriers_from_costs(n, costs, carriers):
     n.import_components_from_dataframe(emissions, "Carrier")
 
 
-def load_costs(tech_costs, config, elec_config, Nyears=1.0):
+def load_costs(tech_costs, params, elec_params, Nyears=1.0):
     # set all asset costs and other parameters
     costs = pd.read_csv(tech_costs, index_col=[0, 1]).sort_index()
 
@@ -143,7 +143,7 @@ def load_costs(tech_costs, config, elec_config, Nyears=1.0):
     costs.loc[costs.unit.str.contains("/kW"), "value"] *= 1e3
     costs.unit = costs.unit.str.replace("/kW", "/MW")
 
-    fill_values = config["fill_values"]
+    fill_values = params["fill_values"]
     costs = costs.value.unstack().fillna(fill_values)
 
     costs["capital_cost"] = (
@@ -166,8 +166,8 @@ def load_costs(tech_costs, config, elec_config, Nyears=1.0):
     costs.at["CCGT", "co2_emissions"] = costs.at["gas", "co2_emissions"]
 
     costs.at["solar", "capital_cost"] = (
-        config["rooftop_share"] * costs.at["solar-rooftop", "capital_cost"]
-        + (1 - config["rooftop_share"]) * costs.at["solar-utility", "capital_cost"]
+        params["rooftop_share"] * costs.at["solar-rooftop", "capital_cost"]
+        + (1 - params["rooftop_share"]) * costs.at["solar-utility", "capital_cost"]
     )
 
     def costs_for_storage(store, link1, link2=None, max_hours=1.0):
@@ -178,7 +178,7 @@ def load_costs(tech_costs, config, elec_config, Nyears=1.0):
             dict(capital_cost=capital_cost, marginal_cost=0.0, co2_emissions=0.0)
         )
 
-    max_hours = elec_config["max_hours"]
+    max_hours = elec_params["max_hours"]
     costs.loc["battery"] = costs_for_storage(
         costs.loc["battery storage"],
         costs.loc["battery inverter"],
@@ -192,7 +192,7 @@ def load_costs(tech_costs, config, elec_config, Nyears=1.0):
     )
 
     for attr in ("marginal_cost", "capital_cost"):
-        overwrites = config.get(attr)
+        overwrites = params.get(attr)
         if overwrites is not None:
             overwrites = pd.Series(overwrites)
             costs.loc[overwrites.index, attr] = overwrites
@@ -356,7 +356,7 @@ def attach_conventional_generators(
     ppl,
     conventional_carriers,
     extendable_carriers,
-    conventional_config,
+    conventional_params,
     conventional_inputs,
 ):
     carriers = set(conventional_carriers) | set(extendable_carriers["Generator"])
@@ -393,12 +393,12 @@ def attach_conventional_generators(
         lifetime=(ppl.dateout - ppl.datein).fillna(np.inf),
     )
 
-    for carrier in conventional_config:
+    for carrier in conventional_params:
         # Generators with technology affected
         idx = n.generators.query("carrier == @carrier").index
 
-        for attr in list(set(conventional_config[carrier]) & set(n.generators)):
-            values = conventional_config[carrier][attr]
+        for attr in list(set(conventional_params[carrier]) & set(n.generators)):
+            values = conventional_params[carrier][attr]
 
             if f"conventional_{carrier}_{attr}" in conventional_inputs:
                 # Values affecting generators of technology k country-specific
@@ -413,7 +413,7 @@ def attach_conventional_generators(
                 n.generators.loc[idx, attr] = values
 
 
-def attach_hydro(n, costs, ppl, profile_hydro, hydro_capacities, carriers, **config):
+def attach_hydro(n, costs, ppl, profile_hydro, hydro_capacities, carriers, **params):
     _add_missing_carriers_from_costs(n, costs, carriers)
 
     ppl = (
@@ -468,9 +468,9 @@ def attach_hydro(n, costs, ppl, profile_hydro, hydro_capacities, carriers, **con
         )
 
     if "PHS" in carriers and not phs.empty:
-        # fill missing max hours to config value and
+        # fill missing max hours to params value and
         # assume no natural inflow due to lack of data
-        max_hours = config.get("PHS_max_hours", 6)
+        max_hours = params.get("PHS_max_hours", 6)
         phs = phs.replace({"max_hours": {0: max_hours}})
         n.madd(
             "StorageUnit",
@@ -486,7 +486,7 @@ def attach_hydro(n, costs, ppl, profile_hydro, hydro_capacities, carriers, **con
         )
 
     if "hydro" in carriers and not hydro.empty:
-        hydro_max_hours = config.get("hydro_max_hours")
+        hydro_max_hours = params.get("hydro_max_hours")
 
         assert hydro_max_hours is not None, "No path for hydro capacities given."
 
@@ -636,13 +636,12 @@ def attach_OPSD_renewables(n, tech_map):
         n.generators.p_nom_min.update(gens.bus.map(caps).dropna())
 
 
-def estimate_renewable_capacities(n, config):
-    year = config["electricity"]["estimate_renewable_capacities"]["year"]
-    tech_map = config["electricity"]["estimate_renewable_capacities"][
+def estimate_renewable_capacities(n, electricity_params, countries):
+    year = electricity_params["estimate_renewable_capacities"]["year"]
+    tech_map = electricity_params["estimate_renewable_capacities"][
         "technology_mapping"
     ]
-    countries = config["countries"]
-    expansion_limit = config["electricity"]["estimate_renewable_capacities"][
+    expansion_limit = electricity_params["estimate_renewable_capacities"][
         "expansion_limit"
     ]
 
@@ -759,7 +758,7 @@ if __name__ == "__main__":
         ppl,
         conventional_carriers,
         extendable_carriers,
-        snakemake.config.get("conventional", {}),
+        snakemake.params.get("conventional", {}),
         conventional_inputs,
     )
 
@@ -773,15 +772,15 @@ if __name__ == "__main__":
     )
 
     if "hydro" in renewable_carriers:
-        conf = snakemake.params["renewable"]["hydro"]
+        para = snakemake.params["renewable"]["hydro"]
         attach_hydro(
             n,
             costs,
             ppl,
             snakemake.input.profile_hydro,
             snakemake.input.hydro_capacities,
-            conf.pop("carriers", []),
-            **conf,
+            para.pop("carriers", []),
+            **para,
         )
 
     if "estimate_renewable_capacities" not in snakemake.params["electricity"]:
@@ -829,7 +828,7 @@ if __name__ == "__main__":
                 "technology_mapping"
             ]
             attach_OPSD_renewables(n, tech_map)
-        estimate_renewable_capacities(n, snakemake.config)
+        estimate_renewable_capacities(n, snakemake.params["electricity"],snakemake.params["countries"])
 
     update_p_nom_max(n)
 
diff --git a/scripts/build_biomass_potentials.py b/scripts/build_biomass_potentials.py
index 35218e2c..0b423ad5 100644
--- a/scripts/build_biomass_potentials.py
+++ b/scripts/build_biomass_potentials.py
@@ -210,9 +210,9 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_biomass_potentials", simpl="", clusters="5")
 
-    config = snakemake.params["biomass"]
-    year = config["year"]
-    scenario = config["scenario"]
+    params = snakemake.params["biomass"]
+    year = params["year"]
+    scenario = params["scenario"]
 
     enspreso = enspreso_biomass_potentials(year, scenario)
 
@@ -228,7 +228,7 @@ if __name__ == "__main__":
 
     df.to_csv(snakemake.output.biomass_potentials_all)
 
-    grouper = {v: k for k, vv in config["classes"].items() for v in vv}
+    grouper = {v: k for k, vv in params["classes"].items() for v in vv}
     df = df.groupby(grouper, axis=1).sum()
 
     df *= 1e6  # TWh/a to MWh/a
diff --git a/scripts/build_energy_totals.py b/scripts/build_energy_totals.py
index 5099d140..3e3cb485 100644
--- a/scripts/build_energy_totals.py
+++ b/scripts/build_energy_totals.py
@@ -737,7 +737,7 @@ if __name__ == "__main__":
 
     logging.basicConfig(level=snakemake.config["logging"]["level"])
 
-    config = snakemake.params["energy"]
+    params = snakemake.params["energy"]
 
     nuts3 = gpd.read_file(snakemake.input.nuts3_shapes).set_index("index")
     population = nuts3["pop"].groupby(nuts3.country).sum()
@@ -745,7 +745,7 @@ if __name__ == "__main__":
     countries = snakemake.params["countries"]
     idees_countries = pd.Index(countries).intersection(eu28)
 
-    data_year = config["energy_totals_year"]
+    data_year = params["energy_totals_year"]
     report_year = snakemake.params["energy"]["eurostat_report_year"]
     input_eurostat = snakemake.input.eurostat
     eurostat = build_eurostat(input_eurostat, countries, report_year, data_year)
@@ -755,7 +755,7 @@ if __name__ == "__main__":
     energy = build_energy_totals(countries, eurostat, swiss, idees)
     energy.to_csv(snakemake.output.energy_name)
 
-    base_year_emissions = config["base_emissions_year"]
+    base_year_emissions = params["base_emissions_year"]
     emissions_scope = snakemake.params["energy"]["emissions"]
     eea_co2 = build_eea_co2(snakemake.input.co2, base_year_emissions, emissions_scope)
     eurostat_co2 = build_eurostat_co2(
diff --git a/scripts/build_hydro_profile.py b/scripts/build_hydro_profile.py
index 5453ac5c..dd686be3 100644
--- a/scripts/build_hydro_profile.py
+++ b/scripts/build_hydro_profile.py
@@ -130,7 +130,7 @@ if __name__ == "__main__":
         snakemake = mock_snakemake("build_hydro_profile")
     configure_logging(snakemake)
 
-    config_hydro = snakemake.params["renewable"]["hydro"]
+    params_hydro = snakemake.params["renewable"]["hydro"]
     cutout = atlite.Cutout(snakemake.input.cutout)
 
     countries = snakemake.params["countries"]
@@ -151,7 +151,7 @@ if __name__ == "__main__":
         normalize_using_yearly=eia_stats,
     )
 
-    if "clip_min_inflow" in config_hydro:
-        inflow = inflow.where(inflow > config_hydro["clip_min_inflow"], 0)
+    if "clip_min_inflow" in params_hydro:
+        inflow = inflow.where(inflow > params_hydro["clip_min_inflow"], 0)
 
     inflow.to_netcdf(snakemake.output[0])
diff --git a/scripts/build_industrial_energy_demand_per_country_today.py b/scripts/build_industrial_energy_demand_per_country_today.py
index c28351c1..9f8c47d0 100644
--- a/scripts/build_industrial_energy_demand_per_country_today.py
+++ b/scripts/build_industrial_energy_demand_per_country_today.py
@@ -101,8 +101,8 @@ def add_ammonia_energy_demand(demand):
 
     def get_ammonia_by_fuel(x):
         fuels = {
-            "gas": config["MWh_CH4_per_tNH3_SMR"],
-            "electricity": config["MWh_elec_per_tNH3_SMR"],
+            "gas": params["MWh_CH4_per_tNH3_SMR"],
+            "electricity": params["MWh_elec_per_tNH3_SMR"],
         }
 
         return pd.Series({k: x * v for k, v in fuels.items()})
@@ -112,7 +112,7 @@ def add_ammonia_energy_demand(demand):
         index=demand.index, fill_value=0.0
     )
 
-    ammonia = pd.DataFrame({"ammonia": ammonia * config["MWh_NH3_per_tNH3"]}).T
+    ammonia = pd.DataFrame({"ammonia": ammonia * params["MWh_NH3_per_tNH3"]}).T
 
     demand["Ammonia"] = ammonia.unstack().reindex(index=demand.index, fill_value=0.0)
 
@@ -178,8 +178,8 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_industrial_energy_demand_per_country_today")
 
-    config = snakemake.params["industry"]
-    year = config.get("reference_year", 2015)
+    params = snakemake.params["industry"]
+    year = params.get("reference_year", 2015)
     countries = pd.Index(snakemake.params["countries"])
 
     demand = industrial_energy_demand(countries.intersection(eu28), year)
diff --git a/scripts/build_industrial_production_per_country.py b/scripts/build_industrial_production_per_country.py
index 62073ea1..889c9ecd 100644
--- a/scripts/build_industrial_production_per_country.py
+++ b/scripts/build_industrial_production_per_country.py
@@ -264,9 +264,9 @@ def separate_basic_chemicals(demand, year):
 
     # assume HVC, methanol, chlorine production proportional to non-ammonia basic chemicals
     distribution_key = demand["Basic chemicals"] / demand["Basic chemicals"].sum()
-    demand["HVC"] = config["HVC_production_today"] * 1e3 * distribution_key
-    demand["Chlorine"] = config["chlorine_production_today"] * 1e3 * distribution_key
-    demand["Methanol"] = config["methanol_production_today"] * 1e3 * distribution_key
+    demand["HVC"] = params["HVC_production_today"] * 1e3 * distribution_key
+    demand["Chlorine"] = params["chlorine_production_today"] * 1e3 * distribution_key
+    demand["Methanol"] = params["methanol_production_today"] * 1e3 * distribution_key
 
     demand.drop(columns=["Basic chemicals"], inplace=True)
 
@@ -283,7 +283,7 @@ if __name__ == "__main__":
 
     year = snakemake.params["industry"]["reference_year"]
 
-    config = snakemake.params["industry"]
+    params = snakemake.params["industry"]
 
     jrc_dir = snakemake.input.jrc
     eurostat_dir = snakemake.input.eurostat
diff --git a/scripts/build_industrial_production_per_country_tomorrow.py b/scripts/build_industrial_production_per_country_tomorrow.py
index b9ac9b16..609170aa 100644
--- a/scripts/build_industrial_production_per_country_tomorrow.py
+++ b/scripts/build_industrial_production_per_country_tomorrow.py
@@ -15,7 +15,7 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_industrial_production_per_country_tomorrow")
 
-    config = snakemake.params["industry"]
+    params = snakemake.params["industry"]
 
     investment_year = int(snakemake.wildcards.planning_horizons)
 
@@ -25,8 +25,8 @@ if __name__ == "__main__":
     keys = ["Integrated steelworks", "Electric arc"]
     total_steel = production[keys].sum(axis=1)
 
-    st_primary_fraction = get(config["St_primary_fraction"], investment_year)
-    dri_fraction = get(config["DRI_fraction"], investment_year)
+    st_primary_fraction = get(params["St_primary_fraction"], investment_year)
+    dri_fraction = get(params["DRI_fraction"], investment_year)
     int_steel = production["Integrated steelworks"].sum()
     fraction_persistent_primary = st_primary_fraction * total_steel.sum() / int_steel
 
@@ -51,7 +51,7 @@ if __name__ == "__main__":
     key_pri = "Aluminium - primary production"
     key_sec = "Aluminium - secondary production"
 
-    al_primary_fraction = get(config["Al_primary_fraction"], investment_year)
+    al_primary_fraction = get(params["Al_primary_fraction"], investment_year)
     fraction_persistent_primary = (
         al_primary_fraction * total_aluminium.sum() / production[key_pri].sum()
     )
@@ -60,15 +60,15 @@ if __name__ == "__main__":
     production[key_sec] = total_aluminium - production[key_pri]
 
     production["HVC (mechanical recycling)"] = (
-        get(config["HVC_mechanical_recycling_fraction"], investment_year)
+        get(params["HVC_mechanical_recycling_fraction"], investment_year)
         * production["HVC"]
     )
     production["HVC (chemical recycling)"] = (
-        get(config["HVC_chemical_recycling_fraction"], investment_year)
+        get(params["HVC_chemical_recycling_fraction"], investment_year)
         * production["HVC"]
     )
 
-    production["HVC"] *= get(config["HVC_primary_fraction"], investment_year)
+    production["HVC"] *= get(params["HVC_primary_fraction"], investment_year)
 
     fn = snakemake.output.industrial_production_per_country_tomorrow
     production.to_csv(fn, float_format="%.2f")
diff --git a/scripts/build_industry_sector_ratios.py b/scripts/build_industry_sector_ratios.py
index c3e2bd49..2ec007a9 100644
--- a/scripts/build_industry_sector_ratios.py
+++ b/scripts/build_industry_sector_ratios.py
@@ -185,10 +185,10 @@ def iron_and_steel():
     df[sector] = df["Electric arc"]
 
     # add H2 consumption for DRI at 1.7 MWh H2 /ton steel
-    df.at["hydrogen", sector] = config["H2_DRI"]
+    df.at["hydrogen", sector] = params["H2_DRI"]
 
     # add electricity consumption in DRI shaft (0.322 MWh/tSl)
-    df.at["elec", sector] += config["elec_DRI"]
+    df.at["elec", sector] += params["elec_DRI"]
 
     ## Integrated steelworks
     # could be used in combination with CCS)
@@ -383,19 +383,19 @@ def chemicals_industry():
     assert s_emi.index[0] == sector
 
     # convert from MtHVC/a to ktHVC/a
-    s_out = config["HVC_production_today"] * 1e3
+    s_out = params["HVC_production_today"] * 1e3
 
     # tCO2/t material
     df.loc["process emission", sector] += (
         s_emi["Process emissions"]
-        - config["petrochemical_process_emissions"] * 1e3
-        - config["NH3_process_emissions"] * 1e3
+        - params["petrochemical_process_emissions"] * 1e3
+        - params["NH3_process_emissions"] * 1e3
     ) / s_out
 
     # emissions originating from feedstock, could be non-fossil origin
     # tCO2/t material
     df.loc["process emission from feedstock", sector] += (
-        config["petrochemical_process_emissions"] * 1e3
+        params["petrochemical_process_emissions"] * 1e3
     ) / s_out
 
     # convert from ktoe/a to GWh/a
@@ -405,18 +405,18 @@ def chemicals_industry():
     # subtract ammonia energy demand (in ktNH3/a)
     ammonia = pd.read_csv(snakemake.input.ammonia_production, index_col=0)
     ammonia_total = ammonia.loc[ammonia.index.intersection(eu28), str(year)].sum()
-    df.loc["methane", sector] -= ammonia_total * config["MWh_CH4_per_tNH3_SMR"]
-    df.loc["elec", sector] -= ammonia_total * config["MWh_elec_per_tNH3_SMR"]
+    df.loc["methane", sector] -= ammonia_total * params["MWh_CH4_per_tNH3_SMR"]
+    df.loc["elec", sector] -= ammonia_total * params["MWh_elec_per_tNH3_SMR"]
 
     # subtract chlorine demand
-    chlorine_total = config["chlorine_production_today"]
-    df.loc["hydrogen", sector] -= chlorine_total * config["MWh_H2_per_tCl"]
-    df.loc["elec", sector] -= chlorine_total * config["MWh_elec_per_tCl"]
+    chlorine_total = params["chlorine_production_today"]
+    df.loc["hydrogen", sector] -= chlorine_total * params["MWh_H2_per_tCl"]
+    df.loc["elec", sector] -= chlorine_total * params["MWh_elec_per_tCl"]
 
     # subtract methanol demand
-    methanol_total = config["methanol_production_today"]
-    df.loc["methane", sector] -= methanol_total * config["MWh_CH4_per_tMeOH"]
-    df.loc["elec", sector] -= methanol_total * config["MWh_elec_per_tMeOH"]
+    methanol_total = params["methanol_production_today"]
+    df.loc["methane", sector] -= methanol_total * params["MWh_CH4_per_tMeOH"]
+    df.loc["elec", sector] -= methanol_total * params["MWh_elec_per_tMeOH"]
 
     # MWh/t material
     df.loc[sources, sector] = df.loc[sources, sector] / s_out
@@ -427,37 +427,37 @@ def chemicals_industry():
 
     sector = "HVC (mechanical recycling)"
     df[sector] = 0.0
-    df.loc["elec", sector] = config["MWh_elec_per_tHVC_mechanical_recycling"]
+    df.loc["elec", sector] = params["MWh_elec_per_tHVC_mechanical_recycling"]
 
     # HVC chemical recycling
 
     sector = "HVC (chemical recycling)"
     df[sector] = 0.0
-    df.loc["elec", sector] = config["MWh_elec_per_tHVC_chemical_recycling"]
+    df.loc["elec", sector] = params["MWh_elec_per_tHVC_chemical_recycling"]
 
     # Ammonia
 
     sector = "Ammonia"
     df[sector] = 0.0
     if snakemake.params["sector"].get("ammonia", False):
-        df.loc["ammonia", sector] = config["MWh_NH3_per_tNH3"]
+        df.loc["ammonia", sector] = params["MWh_NH3_per_tNH3"]
     else:
-        df.loc["hydrogen", sector] = config["MWh_H2_per_tNH3_electrolysis"]
-        df.loc["elec", sector] = config["MWh_elec_per_tNH3_electrolysis"]
+        df.loc["hydrogen", sector] = params["MWh_H2_per_tNH3_electrolysis"]
+        df.loc["elec", sector] = params["MWh_elec_per_tNH3_electrolysis"]
 
     # Chlorine
 
     sector = "Chlorine"
     df[sector] = 0.0
-    df.loc["hydrogen", sector] = config["MWh_H2_per_tCl"]
-    df.loc["elec", sector] = config["MWh_elec_per_tCl"]
+    df.loc["hydrogen", sector] = params["MWh_H2_per_tCl"]
+    df.loc["elec", sector] = params["MWh_elec_per_tCl"]
 
     # Methanol
 
     sector = "Methanol"
     df[sector] = 0.0
-    df.loc["methane", sector] = config["MWh_CH4_per_tMeOH"]
-    df.loc["elec", sector] = config["MWh_elec_per_tMeOH"]
+    df.loc["methane", sector] = params["MWh_CH4_per_tMeOH"]
+    df.loc["elec", sector] = params["MWh_elec_per_tMeOH"]
 
     # Other chemicals
 
@@ -1465,10 +1465,10 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_industry_sector_ratios")
 
-    # TODO make config option
+    # TODO make params option
     year = 2015
 
-    config = snakemake.params["industry"]
+    params = snakemake.params["industry"]
 
     df = pd.concat(
         [
diff --git a/scripts/build_renewable_profiles.py b/scripts/build_renewable_profiles.py
index 8fba74e6..91463c23 100644
--- a/scripts/build_renewable_profiles.py
+++ b/scripts/build_renewable_profiles.py
@@ -64,7 +64,7 @@ Inputs
 - ``resources/offshore_shapes.geojson``: confer :ref:`shapes`
 - ``resources/regions_onshore.geojson``: (if not offshore wind), confer :ref:`busregions`
 - ``resources/regions_offshore.geojson``: (if offshore wind), :ref:`busregions`
-- ``"cutouts/" + config["renewable"][{technology}]['cutout']``: :ref:`cutout`
+- ``"cutouts/" + params["renewable"][{technology}]['cutout']``: :ref:`cutout`
 - ``networks/base.nc``: :ref:`base`
 
 Outputs
@@ -204,14 +204,14 @@ if __name__ == "__main__":
 
     nprocesses = int(snakemake.threads)
     noprogress = snakemake.config["run"].get("disable_progressbar", True)
-    config = snakemake.params["renewable"][snakemake.wildcards.technology]
-    resource = config["resource"]  # pv panel config / wind turbine config
-    correction_factor = config.get("correction_factor", 1.0)
-    capacity_per_sqkm = config["capacity_per_sqkm"]
-    p_nom_max_meth = config.get("potential", "conservative")
+    params = snakemake.params["renewable"][snakemake.wildcards.technology]
+    resource = params["resource"]  # pv panel params / wind turbine params
+    correction_factor = params.get("correction_factor", 1.0)
+    capacity_per_sqkm = params["capacity_per_sqkm"]
+    p_nom_max_meth = params.get("potential", "conservative")
 
-    if isinstance(config.get("corine", {}), list):
-        config["corine"] = {"grid_codes": config["corine"]}
+    if isinstance(params.get("corine", {}), list):
+        params["corine"] = {"grid_codes": params["corine"]}
 
     if correction_factor != 1.0:
         logger.info(f"correction_factor is set as {correction_factor}")
@@ -229,13 +229,13 @@ if __name__ == "__main__":
     regions = regions.set_index("name").rename_axis("bus")
     buses = regions.index
 
-    res = config.get("excluder_resolution", 100)
+    res = params.get("excluder_resolution", 100)
     excluder = atlite.ExclusionContainer(crs=3035, res=res)
 
-    if config["natura"]:
+    if params["natura"]:
         excluder.add_raster(snakemake.input.natura, nodata=0, allow_no_overlap=True)
 
-    corine = config.get("corine", {})
+    corine = params.get("corine", {})
     if "grid_codes" in corine:
         codes = corine["grid_codes"]
         excluder.add_raster(snakemake.input.corine, codes=codes, invert=True, crs=3035)
@@ -246,28 +246,28 @@ if __name__ == "__main__":
             snakemake.input.corine, codes=codes, buffer=buffer, crs=3035
         )
 
-    if "ship_threshold" in config:
+    if "ship_threshold" in params:
         shipping_threshold = (
-            config["ship_threshold"] * 8760 * 6
+            params["ship_threshold"] * 8760 * 6
         )  # approximation because 6 years of data which is hourly collected
         func = functools.partial(np.less, shipping_threshold)
         excluder.add_raster(
             snakemake.input.ship_density, codes=func, crs=4326, allow_no_overlap=True
         )
 
-    if config.get("max_depth"):
+    if params.get("max_depth"):
         # lambda not supported for atlite + multiprocessing
         # use named function np.greater with partially frozen argument instead
         # and exclude areas where: -max_depth > grid cell depth
-        func = functools.partial(np.greater, -config["max_depth"])
+        func = functools.partial(np.greater, -params["max_depth"])
         excluder.add_raster(snakemake.input.gebco, codes=func, crs=4326, nodata=-1000)
 
-    if "min_shore_distance" in config:
-        buffer = config["min_shore_distance"]
+    if "min_shore_distance" in params:
+        buffer = params["min_shore_distance"]
         excluder.add_geometry(snakemake.input.country_shapes, buffer=buffer)
 
-    if "max_shore_distance" in config:
-        buffer = config["max_shore_distance"]
+    if "max_shore_distance" in params:
+        buffer = params["max_shore_distance"]
         excluder.add_geometry(
             snakemake.input.country_shapes, buffer=buffer, invert=True
         )
@@ -309,7 +309,7 @@ if __name__ == "__main__":
         p_nom_max = capacities / max_cap_factor
     else:
         raise AssertionError(
-            'Config key `potential` should be one of "simple" '
+            'params key `potential` should be one of "simple" '
             f'(default) or "conservative", not "{p_nom_max_meth}"'
         )
 
@@ -358,13 +358,13 @@ if __name__ == "__main__":
     # select only buses with some capacity and minimal capacity factor
     ds = ds.sel(
         bus=(
-            (ds["profile"].mean("time") > config.get("min_p_max_pu", 0.0))
-            & (ds["p_nom_max"] > config.get("min_p_nom_max", 0.0))
+            (ds["profile"].mean("time") > params.get("min_p_max_pu", 0.0))
+            & (ds["p_nom_max"] > params.get("min_p_nom_max", 0.0))
         )
     )
 
-    if "clip_p_max_pu" in config:
-        min_p_max_pu = config["clip_p_max_pu"]
+    if "clip_p_max_pu" in params:
+        min_p_max_pu = params["clip_p_max_pu"]
         ds["profile"] = ds["profile"].where(ds["profile"] >= min_p_max_pu, 0)
 
     ds.to_netcdf(snakemake.output.profile)
diff --git a/scripts/prepare_sector_network.py b/scripts/prepare_sector_network.py
index 86a9bc82..1db9b916 100644
--- a/scripts/prepare_sector_network.py
+++ b/scripts/prepare_sector_network.py
@@ -727,7 +727,7 @@ def cycling_shift(df, steps=1):
     return df
 
 
-def prepare_costs(cost_file, config, nyears):
+def prepare_costs(cost_file, params, nyears):
     # set all asset costs and other parameters
     costs = pd.read_csv(cost_file, index_col=[0, 1]).sort_index()
 
@@ -739,7 +739,7 @@ def prepare_costs(cost_file, config, nyears):
         costs.loc[:, "value"].unstack(level=1).groupby("technology").sum(min_count=1)
     )
 
-    costs = costs.fillna(config["fill_values"])
+    costs = costs.fillna(params["fill_values"])
 
     def annuity_factor(v):
         return annuity(v["lifetime"], v["discount rate"]) + v["FOM"] / 100