diff --git a/rules/build_electricity.smk b/rules/build_electricity.smk
index 8b7780db..bb000f2b 100644
--- a/rules/build_electricity.smk
+++ b/rules/build_electricity.smk
@@ -19,6 +19,10 @@ if config["enable"].get("prepare_links_p_nom", False):
 
 
 rule build_electricity_demand:
+    params:
+        snapshots=config["snapshots"],
+        countries=config["countries"],
+        load=config["load"],
     input:
         ancient("data/load_raw.csv"),
     output:
@@ -34,6 +38,9 @@ rule build_electricity_demand:
 
 
 rule build_powerplants:
+    params:
+        electricity=config["electricity"],
+        countries=config["countries"],
     input:
         base_network=RESOURCES + "networks/base.nc",
         custom_powerplants="data/custom_powerplants.csv",
@@ -79,6 +86,8 @@ rule base_network:
 
 
 rule build_shapes:
+    params:
+        countries=config["countries"],
     input:
         naturalearth=ancient("data/bundle/naturalearth/ne_10m_admin_0_countries.shp"),
         eez=ancient("data/bundle/eez/World_EEZ_v8_2014.shp"),
@@ -104,6 +113,8 @@ rule build_shapes:
 
 
 rule build_bus_regions:
+    params:
+        countries=config["countries"],
     input:
         country_shapes=RESOURCES + "country_shapes.geojson",
         offshore_shapes=RESOURCES + "offshore_shapes.geojson",
@@ -125,6 +136,9 @@ rule build_bus_regions:
 if config["enable"].get("build_cutout", False):
 
     rule build_cutout:
+        params:
+            snapshots=config["snapshots"],
+            atlite=config["atlite"],
         input:
             regions_onshore=RESOURCES + "regions_onshore.geojson",
             regions_offshore=RESOURCES + "regions_offshore.geojson",
@@ -186,6 +200,8 @@ rule build_ship_raster:
 
 
 rule build_renewable_profiles:
+    params:
+        renewable=config["renewable"],
     input:
         base_network=RESOURCES + "networks/base.nc",
         corine=ancient("data/bundle/corine/g250_clc06_V18_5.tif"),
@@ -235,6 +251,9 @@ rule build_renewable_profiles:
 
 
 rule build_hydro_profile:
+    params:
+        countries=config["countries"],
+        renewable=config["renewable"],
     input:
         country_shapes=RESOURCES + "country_shapes.geojson",
         eia_hydro_generation="data/eia_hydro_annual_generation.csv",
@@ -252,6 +271,13 @@ rule build_hydro_profile:
 
 
 rule add_electricity:
+    params:
+        lines=config["lines"],
+        load=config["load"],
+        countries=config["countries"],
+        renewable=config["renewable"],
+        electricity=config["electricity"],
+        costs=config["costs"],
     input:
         **{
             f"profile_{tech}": RESOURCES + f"profile_{tech}.nc"
@@ -273,14 +299,6 @@ rule add_electricity:
         nuts3_shapes=RESOURCES + "nuts3_shapes.geojson",
     output:
         RESOURCES + "networks/elec.nc",
-    params:
-        costs=snakemake.config["costs"],
-        electricity=snakemake.config["electricity"],
-        renewable=snakemake.config["renewable"],
-        conventional=snakemake.config.get("conventional", {}),
-        countries=snakemake.config["countries"],
-        scaling_factor=snakemake.config["load"]["scaling_factor"],
-        length_factor=snakemake.config["lines"]["length_factor"],
     log:
         LOGS + "add_electricity.log",
     benchmark:
@@ -295,6 +313,10 @@ rule add_electricity:
 
 
 rule simplify_network:
+    params:
+        clustering=config["clustering"],
+        electricity=config["electricity"],
+        costs=config["costs"],
     input:
         network=RESOURCES + "networks/elec.nc",
         tech_costs=COSTS,
@@ -320,6 +342,14 @@ rule simplify_network:
 
 
 rule cluster_network:
+    params:
+        solving=config["solving"],
+        electricity=config["electricity"],
+        costs=config["costs"],
+        lines=config["lines"],
+        renewable=config["renewable"],
+        clustering=config["clustering"],
+        enable=config["enable"],
     input:
         network=RESOURCES + "networks/elec_s{simpl}.nc",
         regions_onshore=RESOURCES + "regions_onshore_elec_s{simpl}.geojson",
@@ -351,6 +381,9 @@ rule cluster_network:
 
 
 rule add_extra_components:
+    params:
+        costs=config["costs"],
+        electricity=config["electricity"],
     input:
         network=RESOURCES + "networks/elec_s{simpl}_{clusters}.nc",
         tech_costs=COSTS,
@@ -370,6 +403,12 @@ rule add_extra_components:
 
 
 rule prepare_network:
+    params:
+        links=config["links"],
+        solving=config["solving"],
+        lines=config["lines"],
+        electricity=config["electricity"],
+        costs=config["costs"],
     input:
         RESOURCES + "networks/elec_s{simpl}_{clusters}_ec.nc",
         tech_costs=COSTS,
diff --git a/rules/build_sector.smk b/rules/build_sector.smk
index 1b724d1a..d375b7b9 100644
--- a/rules/build_sector.smk
+++ b/rules/build_sector.smk
@@ -4,6 +4,8 @@
 
 
 rule build_population_layouts:
+    params:
+        logging=config["logging"],
     input:
         nuts3_shapes=RESOURCES + "nuts3_shapes.geojson",
         urban_percent="data/urban_percent.csv",
@@ -70,6 +72,8 @@ rule build_simplified_population_layouts:
 if config["sector"]["gas_network"] or config["sector"]["H2_retrofit"]:
 
     rule build_gas_network:
+        params:
+            logging=config["logging"],
         input:
             gas_network="data/gas_network/scigrid-gas/data/IGGIELGN_PipeSegments.geojson",
         output:
@@ -84,6 +88,8 @@ if config["sector"]["gas_network"] or config["sector"]["H2_retrofit"]:
             "../scripts/build_gas_network.py"
 
     rule build_gas_input_locations:
+        params:
+            logging=config["logging"],
         input:
             lng=HTTP.remote(
                 "https://globalenergymonitor.org/wp-content/uploads/2022/09/Europe-Gas-Tracker-August-2022.xlsx",
@@ -110,6 +116,8 @@ if config["sector"]["gas_network"] or config["sector"]["H2_retrofit"]:
             "../scripts/build_gas_input_locations.py"
 
     rule cluster_gas_network:
+        params:
+            logging=config["logging"],
         input:
             cleaned_gas_network=RESOURCES + "gas_network.csv",
             regions_onshore=RESOURCES
@@ -140,6 +148,8 @@ if not (config["sector"]["gas_network"] or config["sector"]["H2_retrofit"]):
 
 
 rule build_heat_demands:
+    params:
+        snapshots=config["snapshots"],
     input:
         pop_layout=RESOURCES + "pop_layout_{scope}.nc",
         regions_onshore=RESOURCES + "regions_onshore_elec_s{simpl}_{clusters}.geojson",
@@ -160,6 +170,8 @@ rule build_heat_demands:
 
 
 rule build_temperature_profiles:
+    params:
+        snapshots=config["snapshots"],
     input:
         pop_layout=RESOURCES + "pop_layout_{scope}.nc",
         regions_onshore=RESOURCES + "regions_onshore_elec_s{simpl}_{clusters}.geojson",
@@ -181,6 +193,8 @@ rule build_temperature_profiles:
 
 
 rule build_cop_profiles:
+    params:
+        sector=config["sector"],
     input:
         temp_soil_total=RESOURCES + "temp_soil_total_elec_s{simpl}_{clusters}.nc",
         temp_soil_rural=RESOURCES + "temp_soil_rural_elec_s{simpl}_{clusters}.nc",
@@ -208,6 +222,9 @@ rule build_cop_profiles:
 
 
 rule build_solar_thermal_profiles:
+    params:
+        snapshots=config["snapshots"],
+        solar_thermal=config["solar_thermal"],
     input:
         pop_layout=RESOURCES + "pop_layout_{scope}.nc",
         regions_onshore=RESOURCES + "regions_onshore_elec_s{simpl}_{clusters}.geojson",
@@ -228,6 +245,11 @@ rule build_solar_thermal_profiles:
 
 
 rule build_energy_totals:
+    params:
+        run=config["run"],
+        countries=config["countries"],
+        energy=config["energy"],
+        logging=config["logging"],
     input:
         nuts3_shapes=RESOURCES + "nuts3_shapes.geojson",
         co2="data/eea/UNFCCC_v23.csv",
@@ -253,6 +275,8 @@ rule build_energy_totals:
 
 
 rule build_biomass_potentials:
+    params:
+        biomass=config["biomass"],
     input:
         enspreso_biomass=HTTP.remote(
             "https://cidportal.jrc.ec.europa.eu/ftp/jrc-opendata/ENSPRESO/ENSPRESO_BIOMASS.xlsx",
@@ -315,6 +339,8 @@ if not config["sector"]["biomass_transport"]:
 if config["sector"]["regional_co2_sequestration_potential"]["enable"]:
 
     rule build_sequestration_potentials:
+        params:
+            sector=config["sector"],
         input:
             sequestration_potential=HTTP.remote(
                 "https://raw.githubusercontent.com/ericzhou571/Co2Storage/main/resources/complete_map_2020_unit_Mt.geojson",
@@ -368,6 +394,8 @@ rule build_salt_cavern_potentials:
 
 
 rule build_ammonia_production:
+    params:
+        countries=config["countries"],
     input:
         usgs="data/myb1-2017-nitro.xls",
     output:
@@ -386,6 +414,9 @@ rule build_ammonia_production:
 
 
 rule build_industry_sector_ratios:
+    params:
+        industry=config["industry"],
+        sector=config["sector"],
     input:
         ammonia_production=RESOURCES + "ammonia_production.csv",
         idees="data/jrc-idees-2015",
@@ -405,6 +436,11 @@ rule build_industry_sector_ratios:
 
 
 rule build_industrial_production_per_country:
+    params:
+        run=config["run"],
+        industry=config["industry"],
+        countries=config["countries"],
+        logging=config["logging"],
     input:
         ammonia_production=RESOURCES + "ammonia_production.csv",
         jrc="data/jrc-idees-2015",
@@ -426,6 +462,8 @@ rule build_industrial_production_per_country:
 
 
 rule build_industrial_production_per_country_tomorrow:
+    params:
+        industry=config["industry"],
     input:
         industrial_production_per_country=RESOURCES
         + "industrial_production_per_country.csv",
@@ -450,6 +488,10 @@ rule build_industrial_production_per_country_tomorrow:
 
 
 rule build_industrial_distribution_key:
+    params:
+        industry=config["industry"],
+        countries=config["countries"],
+        logging=config["logging"],
     input:
         regions_onshore=RESOURCES + "regions_onshore_elec_s{simpl}_{clusters}.geojson",
         clustered_pop_layout=RESOURCES + "pop_layout_elec_s{simpl}_{clusters}.csv",
@@ -524,6 +566,10 @@ rule build_industrial_energy_demand_per_node:
 
 
 rule build_industrial_energy_demand_per_country_today:
+    params:
+        run=config["run"],
+        countries=config["countries"],
+        industry=config["industry"],
     input:
         jrc="data/jrc-idees-2015",
         ammonia_production=RESOURCES + "ammonia_production.csv",
@@ -570,6 +616,9 @@ rule build_industrial_energy_demand_per_node_today:
 if config["sector"]["retrofitting"]["retro_endogen"]:
 
     rule build_retro_cost:
+        params:
+            sector=config["sector"],
+            countries=config["countries"],
         input:
             building_stock="data/retro/data_building_stock.csv",
             data_tabula="data/retro/tabula-calculator-calcsetbuilding.csv",
@@ -640,6 +689,9 @@ rule build_shipping_demand:
 
 
 rule build_transport_demand:
+    params:
+        snapshots=config["snapshots"],
+        sector=config["sector"],
     input:
         clustered_pop_layout=RESOURCES + "pop_layout_elec_s{simpl}_{clusters}.csv",
         pop_weighted_energy_totals=RESOURCES
@@ -666,6 +718,19 @@ rule build_transport_demand:
 
 rule prepare_sector_network:
     params:
+        co2_budget=config["co2_budget"],
+        solving=config["solving"],
+        existing_capacities=config["existing_capacities"],
+        foresight=config["foresight"],
+        costs=config["costs"],
+        logging=config["logging"],
+        sector=config["sector"],
+        industry=config["industry"],
+        pypsa_eur=config["pypsa_eur"],
+        lines=config["lines"],
+        scenario=config["scenario"],
+        countries=config["countries"],
+        energy=config["energy"],
         RDIR=RDIR,
     input:
         **build_retro_cost_output,
diff --git a/rules/postprocess.smk b/rules/postprocess.smk
index fae0f856..1dfdd098 100644
--- a/rules/postprocess.smk
+++ b/rules/postprocess.smk
@@ -9,6 +9,10 @@ localrules:
 
 
 rule plot_network:
+    params:
+        logging=config["logging"],
+        foresight=config["foresight"],
+        plotting=config["plotting"],
     input:
         overrides="data/override_component_attrs",
         network=RESULTS
@@ -67,6 +71,11 @@ rule copy_conda_env:
 
 rule make_summary:
     params:
+        foresight=config["foresight"],
+        costs=config["costs"],
+        snapshots=config["snapshots"],
+        logging=config["logging"],
+        scenario=config["scenario"],
         RDIR=RDIR,
     input:
         overrides="data/override_component_attrs",
@@ -114,6 +123,10 @@ rule make_summary:
 
 rule plot_summary:
     params:
+        logging=config["logging"],
+        countries=config["countries"],
+        scenario=config["scenario"],
+        plotting=config["plotting"],
         RDIR=RDIR,
     input:
         costs=RESULTS + "csvs/costs.csv",
diff --git a/rules/retrieve.smk b/rules/retrieve.smk
index 0a96406a..4bfbd6c6 100644
--- a/rules/retrieve.smk
+++ b/rules/retrieve.smk
@@ -19,6 +19,8 @@ if config["enable"].get("retrieve_databundle", True):
         datafiles.extend(["natura/Natura2000_end2015.shp", "GEBCO_2014_2D.nc"])
 
     rule retrieve_databundle:
+        params:
+            tutorial=config["tutorial"],
         output:
             expand("data/bundle/{file}", file=datafiles),
         log:
diff --git a/rules/solve_electricity.smk b/rules/solve_electricity.smk
index 8ddeca92..400220c1 100644
--- a/rules/solve_electricity.smk
+++ b/rules/solve_electricity.smk
@@ -4,6 +4,8 @@
 
 
 rule solve_network:
+    params:
+        solving=config["solving"],
     input:
         network=RESOURCES + "networks/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}.nc",
     output:
@@ -30,6 +32,8 @@ rule solve_network:
 
 
 rule solve_operations_network:
+    params:
+        solving=config["solving"],
     input:
         network=RESULTS + "networks/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}.nc",
     output:
diff --git a/rules/solve_myopic.smk b/rules/solve_myopic.smk
index f10d8157..2ecba999 100644
--- a/rules/solve_myopic.smk
+++ b/rules/solve_myopic.smk
@@ -4,6 +4,12 @@
 
 
 rule add_existing_baseyear:
+    params:
+        scenario=config["scenario"],
+        sector=config["sector"],
+        logging=config["logging"],
+        existing_capacities=config["existing_capacities"],
+        costs=config["costs"],
     input:
         overrides="data/override_component_attrs",
         network=RESULTS
@@ -42,6 +48,10 @@ rule add_existing_baseyear:
 
 
 rule add_brownfield:
+    params:
+        logging=config["logging"],
+        sector=config["sector"],
+        existing_capacities=config["existing_capacities"],
     input:
         overrides="data/override_component_attrs",
         network=RESULTS
@@ -74,6 +84,8 @@ ruleorder: add_existing_baseyear > add_brownfield
 
 
 rule solve_sector_network_myopic:
+    params:
+        solving=config["solving"],
     input:
         overrides="data/override_component_attrs",
         network=RESULTS
diff --git a/rules/solve_overnight.smk b/rules/solve_overnight.smk
index c2e103e5..c3608471 100644
--- a/rules/solve_overnight.smk
+++ b/rules/solve_overnight.smk
@@ -4,6 +4,8 @@
 
 
 rule solve_sector_network:
+    params:
+        solving=config["solving"],
     input:
         overrides="data/override_component_attrs",
         network=RESULTS
diff --git a/scripts/_helpers.py b/scripts/_helpers.py
index a67fb105..2cc9a05a 100644
--- a/scripts/_helpers.py
+++ b/scripts/_helpers.py
@@ -82,7 +82,7 @@ def load_network(import_name=None, custom_components=None):
         As in pypsa.Network(import_name)
     custom_components : dict
         Dictionary listing custom components.
-        For using ``snakemake.config['override_components']``
+        For using ``snakemake.params['override_components']``
         in ``config/config.yaml`` define:
 
         .. code:: yaml
diff --git a/scripts/add_brownfield.py b/scripts/add_brownfield.py
index e08b86d7..1d4e3a80 100644
--- a/scripts/add_brownfield.py
+++ b/scripts/add_brownfield.py
@@ -49,7 +49,7 @@ def add_brownfield(n, n_p, year):
             )
         ]
 
-        threshold = snakemake.config["existing_capacities"]["threshold_capacity"]
+        threshold = snakemake.params["existing_capacities"]["threshold_capacity"]
 
         if not chp_heat.empty:
             threshold_chp_heat = (
@@ -87,7 +87,7 @@ def add_brownfield(n, n_p, year):
 
         # deal with gas network
         pipe_carrier = ["gas pipeline"]
-        if snakemake.config["sector"]["H2_retrofit"]:
+        if snakemake.params["sector"]["H2_retrofit"]:
             # drop capacities of previous year to avoid duplicating
             to_drop = n.links.carrier.isin(pipe_carrier) & (n.links.build_year != year)
             n.mremove("Link", n.links.loc[to_drop].index)
@@ -98,7 +98,7 @@ def add_brownfield(n, n_p, year):
                 & (n.links.build_year != year)
             ].index
             gas_pipes_i = n.links[n.links.carrier.isin(pipe_carrier)].index
-            CH4_per_H2 = 1 / snakemake.config["sector"]["H2_retrofit_capacity_per_CH4"]
+            CH4_per_H2 = 1 / snakemake.params["sector"]["H2_retrofit_capacity_per_CH4"]
             fr = "H2 pipeline retrofitted"
             to = "gas pipeline"
             # today's pipe capacity
@@ -139,7 +139,7 @@ if __name__ == "__main__":
             planning_horizons=2030,
         )
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     update_config_with_sector_opts(snakemake.config, snakemake.wildcards.sector_opts)
 
diff --git a/scripts/add_electricity.py b/scripts/add_electricity.py
index bed5ee6b..c3e847ce 100755
--- a/scripts/add_electricity.py
+++ b/scripts/add_electricity.py
@@ -686,15 +686,15 @@ def estimate_renewable_capacities(n, config):
             )
 
 
-def add_nice_carrier_names(n, plotting):
+def add_nice_carrier_names(n, config):
     carrier_i = n.carriers.index
     nice_names = (
-        pd.Series(plotting["nice_names"])
+        pd.Series(config["plotting"]["nice_names"])
         .reindex(carrier_i)
         .fillna(carrier_i.to_series().str.title())
     )
     n.carriers["nice_name"] = nice_names
-    colors = pd.Series(plotting["tech_colors"]).reindex(carrier_i)
+    colors = pd.Series(config["plotting"]["tech_colors"]).reindex(carrier_i)
     if colors.isna().any():
         missing_i = list(colors.index[colors.isna()])
         logger.warning(f"tech_colors for carriers {missing_i} not defined in config.")
@@ -713,23 +713,23 @@ if __name__ == "__main__":
 
     costs = load_costs(
         snakemake.input.tech_costs,
-        snakemake.param["costs"],
-        snakemake.param["electricity"],
+        snakemake.params["costs"],
+        snakemake.params["electricity"],
         Nyears,
     )
     ppl = load_powerplants(snakemake.input.powerplants)
 
-    if "renewable_carriers" in snakemake.param["electricity"]:
-        renewable_carriers = set(snakemake.param["electricity"]["renewable_carriers"])
+    if "renewable_carriers" in snakemake.params["electricity"]:
+        renewable_carriers = set(snakemake.params["electricity"]["renewable_carriers"])
     else:
         logger.warning(
             "Missing key `renewable_carriers` under config entry `electricity`. "
             "In future versions, this will raise an error. "
             "Falling back to carriers listed under `renewable`."
         )
-        renewable_carriers = snakemake.param["renewable"]
+        renewable_carriers = snakemake.params["renewable"]
 
-    extendable_carriers = snakemake.param["electricity"]["extendable_carriers"]
+    extendable_carriers = snakemake.params["electricity"]["extendable_carriers"]
     if not (set(renewable_carriers) & set(extendable_carriers["Generator"])):
         logger.warning(
             "No renewables found in config entry `extendable_carriers`. "
@@ -737,18 +737,18 @@ if __name__ == "__main__":
             "Falling back to all renewables."
         )
 
-    conventional_carriers = snakemake.param["electricity"]["conventional_carriers"]
+    conventional_carriers = snakemake.params["electricity"]["conventional_carriers"]
 
     attach_load(
         n,
         snakemake.input.regions,
         snakemake.input.load,
         snakemake.input.nuts3_shapes,
-        snakemake.param["countries"],
-        snakemake.param["load"]["scaling_factor"],
+        snakemake.params["countries"],
+        snakemake.params["load"]["scaling_factor"],
     )
 
-    update_transmission_costs(n, costs, snakemake.param["lines"]["length_factor"])
+    update_transmission_costs(n, costs, snakemake.params["lines"]["length_factor"])
 
     conventional_inputs = {
         k: v for k, v in snakemake.input.items() if k.startswith("conventional_")
@@ -759,7 +759,7 @@ if __name__ == "__main__":
         ppl,
         conventional_carriers,
         extendable_carriers,
-        snakemake.param.get("conventional", {}),
+        snakemake.config.get("conventional", {}),
         conventional_inputs,
     )
 
@@ -769,11 +769,11 @@ if __name__ == "__main__":
         snakemake.input,
         renewable_carriers,
         extendable_carriers,
-        snakemake.param["lines"]["length_factor"],
+        snakemake.params["lines"]["length_factor"],
     )
 
     if "hydro" in renewable_carriers:
-        conf = snakemake.param["renewable"]["hydro"]
+        conf = snakemake.params["renewable"]["hydro"]
         attach_hydro(
             n,
             costs,
@@ -784,7 +784,7 @@ if __name__ == "__main__":
             **conf,
         )
 
-    if "estimate_renewable_capacities" not in snakemake.param["electricity"]:
+    if "estimate_renewable_capacities" not in snakemake.params["electricity"]:
         logger.warning(
             "Missing key `estimate_renewable_capacities` under config entry `electricity`. "
             "In future versions, this will raise an error. "
@@ -792,18 +792,18 @@ if __name__ == "__main__":
         )
         if (
             "estimate_renewable_capacities_from_capacity_stats"
-            in snakemake.param["electricity"]
+            in snakemake.params["electricity"]
         ):
             estimate_renewable_caps = {
                 "enable": True,
-                **snakemake.param["electricity"][
+                **snakemake.params["electricity"][
                     "estimate_renewable_capacities_from_capacity_stats"
                 ],
             }
         else:
             estimate_renewable_caps = {"enable": False}
     else:
-        estimate_renewable_caps = snakemake.param["electricity"][
+        estimate_renewable_caps = snakemake.params["electricity"][
             "estimate_renewable_capacities"
         ]
     if "enable" not in estimate_renewable_caps:
@@ -819,21 +819,21 @@ if __name__ == "__main__":
             "Falling back to whether `renewable_capacities_from_opsd` is non-empty."
         )
         from_opsd = bool(
-            snakemake.param["electricity"].get("renewable_capacities_from_opsd", False)
+            snakemake.params["electricity"].get("renewable_capacities_from_opsd", False)
         )
         estimate_renewable_caps["from_opsd"] = from_opsd
 
     if estimate_renewable_caps["enable"]:
         if estimate_renewable_caps["from_opsd"]:
-            tech_map = snakemake.param["electricity"]["estimate_renewable_capacities"][
+            tech_map = snakemake.params["electricity"]["estimate_renewable_capacities"][
                 "technology_mapping"
             ]
             attach_OPSD_renewables(n, tech_map)
-        estimate_renewable_capacities(n, snakemake.param)
+        estimate_renewable_capacities(n, snakemake.config)
 
     update_p_nom_max(n)
 
-    add_nice_carrier_names(n, snakemake.param["plotting"])
+    add_nice_carrier_names(n, snakemake.config)
 
-    n.meta = snakemake.param
+    n.meta = snakemake.config
     n.export_to_netcdf(snakemake.output[0])
diff --git a/scripts/add_existing_baseyear.py b/scripts/add_existing_baseyear.py
index 5bc0960d..a24b078d 100644
--- a/scripts/add_existing_baseyear.py
+++ b/scripts/add_existing_baseyear.py
@@ -157,7 +157,7 @@ def add_power_capacities_installed_before_baseyear(n, grouping_years, costs, bas
     # Fill missing DateOut
     dateout = (
         df_agg.loc[biomass_i, "DateIn"]
-        + snakemake.config["costs"]["fill_values"]["lifetime"]
+        + snakemake.params["costs"]["fill_values"]["lifetime"]
     )
     df_agg.loc[biomass_i, "DateOut"] = df_agg.loc[biomass_i, "DateOut"].fillna(dateout)
 
@@ -218,7 +218,7 @@ def add_power_capacities_installed_before_baseyear(n, grouping_years, costs, bas
         capacity = df.loc[grouping_year, generator]
         capacity = capacity[~capacity.isna()]
         capacity = capacity[
-            capacity > snakemake.config["existing_capacities"]["threshold_capacity"]
+            capacity > snakemake.params["existing_capacities"]["threshold_capacity"]
         ]
         suffix = "-ac" if generator == "offwind" else ""
         name_suffix = f" {generator}{suffix}-{grouping_year}"
@@ -582,7 +582,7 @@ def add_heating_capacities_installed_before_baseyear(
             )
 
             # delete links with capacities below threshold
-            threshold = snakemake.config["existing_capacities"]["threshold_capacity"]
+            threshold = snakemake.params["existing_capacities"]["threshold_capacity"]
             n.mremove(
                 "Link",
                 [
@@ -608,14 +608,14 @@ if __name__ == "__main__":
             planning_horizons=2020,
         )
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     update_config_with_sector_opts(snakemake.config, snakemake.wildcards.sector_opts)
 
-    options = snakemake.config["sector"]
+    options = snakemake.params["sector"]
     opts = snakemake.wildcards.sector_opts.split("-")
 
-    baseyear = snakemake.config["scenario"]["planning_horizons"][0]
+    baseyear = snakemake.params["scenario"]["planning_horizons"][0]
 
     overrides = override_component_attrs(snakemake.input.overrides)
     n = pypsa.Network(snakemake.input.network, override_component_attrs=overrides)
@@ -626,14 +626,14 @@ if __name__ == "__main__":
     Nyears = n.snapshot_weightings.generators.sum() / 8760.0
     costs = prepare_costs(
         snakemake.input.costs,
-        snakemake.config["costs"],
+        snakemake.params["costs"],
         Nyears,
     )
 
-    grouping_years_power = snakemake.config["existing_capacities"][
+    grouping_years_power = snakemake.params["existing_capacities"][
         "grouping_years_power"
     ]
-    grouping_years_heat = snakemake.config["existing_capacities"]["grouping_years_heat"]
+    grouping_years_heat = snakemake.params["existing_capacities"]["grouping_years_heat"]
     add_power_capacities_installed_before_baseyear(
         n, grouping_years_power, costs, baseyear
     )
@@ -650,7 +650,7 @@ if __name__ == "__main__":
             .to_pandas()
             .reindex(index=n.snapshots)
         )
-        default_lifetime = snakemake.config["costs"]["fill_values"]["lifetime"]
+        default_lifetime = snakemake.params["costs"]["fill_values"]["lifetime"]
         add_heating_capacities_installed_before_baseyear(
             n,
             baseyear,
diff --git a/scripts/add_extra_components.py b/scripts/add_extra_components.py
index 020370e5..08178c0a 100644
--- a/scripts/add_extra_components.py
+++ b/scripts/add_extra_components.py
@@ -235,11 +235,11 @@ if __name__ == "__main__":
     configure_logging(snakemake)
 
     n = pypsa.Network(snakemake.input.network)
-    elec_config = snakemake.config["electricity"]
+    elec_config = snakemake.params["electricity"]
 
     Nyears = n.snapshot_weightings.objective.sum() / 8760.0
     costs = load_costs(
-        snakemake.input.tech_costs, snakemake.config["costs"], elec_config, Nyears
+        snakemake.input.tech_costs, snakemake.params["costs"], elec_config, Nyears
     )
 
     attach_storageunits(n, costs, elec_config)
diff --git a/scripts/build_ammonia_production.py b/scripts/build_ammonia_production.py
index d78d627e..6f03324f 100644
--- a/scripts/build_ammonia_production.py
+++ b/scripts/build_ammonia_production.py
@@ -30,7 +30,7 @@ if __name__ == "__main__":
     ammonia.index = cc.convert(ammonia.index, to="iso2")
 
     years = [str(i) for i in range(2013, 2018)]
-    countries = ammonia.index.intersection(snakemake.config["countries"])
+    countries = ammonia.index.intersection(snakemake.params["countries"])
     ammonia = ammonia.loc[countries, years].astype(float)
 
     # convert from ktonN to ktonNH3
diff --git a/scripts/build_biomass_potentials.py b/scripts/build_biomass_potentials.py
index 21d0e623..35218e2c 100644
--- a/scripts/build_biomass_potentials.py
+++ b/scripts/build_biomass_potentials.py
@@ -210,7 +210,7 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_biomass_potentials", simpl="", clusters="5")
 
-    config = snakemake.config["biomass"]
+    config = snakemake.params["biomass"]
     year = config["year"]
     scenario = config["scenario"]
 
diff --git a/scripts/build_bus_regions.py b/scripts/build_bus_regions.py
index 6dc3b5a4..e9378792 100644
--- a/scripts/build_bus_regions.py
+++ b/scripts/build_bus_regions.py
@@ -116,7 +116,7 @@ if __name__ == "__main__":
         snakemake = mock_snakemake("build_bus_regions")
     configure_logging(snakemake)
 
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
 
     n = pypsa.Network(snakemake.input.base_network)
 
diff --git a/scripts/build_cop_profiles.py b/scripts/build_cop_profiles.py
index 5d36cd5b..7128ec0d 100644
--- a/scripts/build_cop_profiles.py
+++ b/scripts/build_cop_profiles.py
@@ -39,7 +39,7 @@ if __name__ == "__main__":
         for source in ["air", "soil"]:
             source_T = xr.open_dataarray(snakemake.input[f"temp_{source}_{area}"])
 
-            delta_T = snakemake.config["sector"]["heat_pump_sink_T"] - source_T
+            delta_T = snakemake.params["sector"]["heat_pump_sink_T"] - source_T
 
             cop = coefficient_of_performance(delta_T, source)
 
diff --git a/scripts/build_cutout.py b/scripts/build_cutout.py
index 365797d2..2f61f017 100644
--- a/scripts/build_cutout.py
+++ b/scripts/build_cutout.py
@@ -106,9 +106,9 @@ if __name__ == "__main__":
         snakemake = mock_snakemake("build_cutout", cutout="europe-2013-era5")
     configure_logging(snakemake)
 
-    cutout_params = snakemake.config["atlite"]["cutouts"][snakemake.wildcards.cutout]
+    cutout_params = snakemake.params["atlite"]["cutouts"][snakemake.wildcards.cutout]
 
-    snapshots = pd.date_range(freq="h", **snakemake.config["snapshots"])
+    snapshots = pd.date_range(freq="h", **snakemake.params["snapshots"])
     time = [snapshots[0], snapshots[-1]]
     cutout_params["time"] = slice(*cutout_params.get("time", time))
 
diff --git a/scripts/build_electricity_demand.py b/scripts/build_electricity_demand.py
index b86b4a5f..4ef56d1d 100755
--- a/scripts/build_electricity_demand.py
+++ b/scripts/build_electricity_demand.py
@@ -279,16 +279,16 @@ if __name__ == "__main__":
 
     configure_logging(snakemake)
 
-    powerstatistics = snakemake.config["load"]["power_statistics"]
-    interpolate_limit = snakemake.config["load"]["interpolate_limit"]
-    countries = snakemake.config["countries"]
-    snapshots = pd.date_range(freq="h", **snakemake.config["snapshots"])
+    powerstatistics = snakemake.params["load"]["power_statistics"]
+    interpolate_limit = snakemake.params["load"]["interpolate_limit"]
+    countries = snakemake.params["countries"]
+    snapshots = pd.date_range(freq="h", **snakemake.params["snapshots"])
     years = slice(snapshots[0], snapshots[-1])
-    time_shift = snakemake.config["load"]["time_shift_for_large_gaps"]
+    time_shift = snakemake.params["load"]["time_shift_for_large_gaps"]
 
     load = load_timeseries(snakemake.input[0], years, countries, powerstatistics)
 
-    if snakemake.config["load"]["manual_adjustments"]:
+    if snakemake.params["load"]["manual_adjustments"]:
         load = manual_adjustment(load, snakemake.input[0], powerstatistics)
 
     logger.info(f"Linearly interpolate gaps of size {interpolate_limit} and less.")
diff --git a/scripts/build_energy_totals.py b/scripts/build_energy_totals.py
index 45fc960f..6cedff97 100644
--- a/scripts/build_energy_totals.py
+++ b/scripts/build_energy_totals.py
@@ -373,7 +373,7 @@ def idees_per_country(ct, year, base_dir):
 
 def build_idees(countries, year):
     nprocesses = snakemake.threads
-    disable_progress = snakemake.config["run"].get("disable_progressbar", False)
+    disable_progress = snakemake.params["run"].get("disable_progressbar", False)
 
     func = partial(idees_per_country, year=year, base_dir=snakemake.input.idees)
     tqdm_kwargs = dict(
@@ -735,18 +735,18 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_energy_totals")
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
-    config = snakemake.config["energy"]
+    config = snakemake.params["energy"]
 
     nuts3 = gpd.read_file(snakemake.input.nuts3_shapes).set_index("index")
     population = nuts3["pop"].groupby(nuts3.country).sum()
 
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
     idees_countries = pd.Index(countries).intersection(eu28)
 
     data_year = config["energy_totals_year"]
-    report_year = snakemake.config["energy"]["eurostat_report_year"]
+    report_year = snakemake.params["energy"]["eurostat_report_year"]
     input_eurostat = snakemake.input.eurostat
     eurostat = build_eurostat(input_eurostat, countries, report_year, data_year)
     swiss = build_swiss(data_year)
@@ -756,7 +756,7 @@ if __name__ == "__main__":
     energy.to_csv(snakemake.output.energy_name)
 
     base_year_emissions = config["base_emissions_year"]
-    emissions_scope = snakemake.config["energy"]["emissions"]
+    emissions_scope = snakemake.params["energy"]["emissions"]
     eea_co2 = build_eea_co2(snakemake.input.co2, base_year_emissions, emissions_scope)
     eurostat_co2 = build_eurostat_co2(
         input_eurostat, countries, report_year, base_year_emissions
diff --git a/scripts/build_gas_input_locations.py b/scripts/build_gas_input_locations.py
index a3b945ab..59f31f5c 100644
--- a/scripts/build_gas_input_locations.py
+++ b/scripts/build_gas_input_locations.py
@@ -86,7 +86,7 @@ if __name__ == "__main__":
             clusters="37",
         )
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     regions = load_bus_regions(
         snakemake.input.regions_onshore, snakemake.input.regions_offshore
diff --git a/scripts/build_gas_network.py b/scripts/build_gas_network.py
index 23f58caa..a70f15ff 100644
--- a/scripts/build_gas_network.py
+++ b/scripts/build_gas_network.py
@@ -147,7 +147,7 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_gas_network")
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     gas_network = load_dataset(snakemake.input.gas_network)
 
diff --git a/scripts/build_heat_demand.py b/scripts/build_heat_demand.py
index 56ceb4b7..655df28f 100644
--- a/scripts/build_heat_demand.py
+++ b/scripts/build_heat_demand.py
@@ -27,7 +27,7 @@ if __name__ == "__main__":
     cluster = LocalCluster(n_workers=nprocesses, threads_per_worker=1)
     client = Client(cluster, asynchronous=True)
 
-    time = pd.date_range(freq="h", **snakemake.config["snapshots"])
+    time = pd.date_range(freq="h", **snakemake.params["snapshots"])
     cutout = atlite.Cutout(snakemake.input.cutout).sel(time=time)
 
     clustered_regions = (
diff --git a/scripts/build_hydro_profile.py b/scripts/build_hydro_profile.py
index 0e8cfa27..5453ac5c 100644
--- a/scripts/build_hydro_profile.py
+++ b/scripts/build_hydro_profile.py
@@ -130,10 +130,10 @@ if __name__ == "__main__":
         snakemake = mock_snakemake("build_hydro_profile")
     configure_logging(snakemake)
 
-    config_hydro = snakemake.config["renewable"]["hydro"]
+    config_hydro = snakemake.params["renewable"]["hydro"]
     cutout = atlite.Cutout(snakemake.input.cutout)
 
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
     country_shapes = (
         gpd.read_file(snakemake.input.country_shapes)
         .set_index("name")["geometry"]
diff --git a/scripts/build_industrial_distribution_key.py b/scripts/build_industrial_distribution_key.py
index 69daf64d..30c652d8 100644
--- a/scripts/build_industrial_distribution_key.py
+++ b/scripts/build_industrial_distribution_key.py
@@ -73,7 +73,7 @@ def prepare_hotmaps_database(regions):
 
     df[["srid", "coordinates"]] = df.geom.str.split(";", expand=True)
 
-    if snakemake.config["industry"].get("hotmaps_locate_missing", False):
+    if snakemake.params["industry"].get("hotmaps_locate_missing", False):
         df = locate_missing_industrial_sites(df)
 
     # remove those sites without valid locations
@@ -141,9 +141,9 @@ if __name__ == "__main__":
             clusters=48,
         )
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
 
     regions = gpd.read_file(snakemake.input.regions_onshore).set_index("name")
 
diff --git a/scripts/build_industrial_energy_demand_per_country_today.py b/scripts/build_industrial_energy_demand_per_country_today.py
index 703997b1..4fec95cc 100644
--- a/scripts/build_industrial_energy_demand_per_country_today.py
+++ b/scripts/build_industrial_energy_demand_per_country_today.py
@@ -153,7 +153,7 @@ def add_non_eu28_industrial_energy_demand(countries, demand):
 
 def industrial_energy_demand(countries, year):
     nprocesses = snakemake.threads
-    disable_progress = snakemake.config["run"].get("disable_progressbar", False)
+    disable_progress = snakemake.params["run"].get("disable_progressbar", False)
     func = partial(
         industrial_energy_demand_per_country, year=year, jrc_dir=snakemake.input.jrc
     )
@@ -178,9 +178,9 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_industrial_energy_demand_per_country_today")
 
-    config = snakemake.config["industry"]
+    config = snakemake.params["industry"]
     year = config.get("reference_year", 2015)
-    countries = pd.Index(snakemake.config["countries"])
+    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 437806b3..eb1b16cb 100644
--- a/scripts/build_industrial_production_per_country.py
+++ b/scripts/build_industrial_production_per_country.py
@@ -217,7 +217,7 @@ def industry_production_per_country(country, year, eurostat_dir, jrc_dir):
 
 def industry_production(countries, year, eurostat_dir, jrc_dir):
     nprocesses = snakemake.threads
-    disable_progress = snakemake.config["run"].get("disable_progressbar", False)
+    disable_progress = snakemake.params["run"].get("disable_progressbar", False)
 
     func = partial(
         industry_production_per_country,
@@ -277,13 +277,13 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_industrial_production_per_country")
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
 
-    year = snakemake.config["industry"]["reference_year"]
+    year = snakemake.params["industry"]["reference_year"]
 
-    config = snakemake.config["industry"]
+    config = 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 6c445608..b9ac9b16 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.config["industry"]
+    config = snakemake.params["industry"]
 
     investment_year = int(snakemake.wildcards.planning_horizons)
 
diff --git a/scripts/build_industry_sector_ratios.py b/scripts/build_industry_sector_ratios.py
index 54f2cfdc..c3e2bd49 100644
--- a/scripts/build_industry_sector_ratios.py
+++ b/scripts/build_industry_sector_ratios.py
@@ -439,7 +439,7 @@ def chemicals_industry():
 
     sector = "Ammonia"
     df[sector] = 0.0
-    if snakemake.config["sector"].get("ammonia", False):
+    if snakemake.params["sector"].get("ammonia", False):
         df.loc["ammonia", sector] = config["MWh_NH3_per_tNH3"]
     else:
         df.loc["hydrogen", sector] = config["MWh_H2_per_tNH3_electrolysis"]
@@ -1468,7 +1468,7 @@ if __name__ == "__main__":
     # TODO make config option
     year = 2015
 
-    config = snakemake.config["industry"]
+    config = snakemake.params["industry"]
 
     df = pd.concat(
         [
diff --git a/scripts/build_population_layouts.py b/scripts/build_population_layouts.py
index e864d925..bc35dbcf 100644
--- a/scripts/build_population_layouts.py
+++ b/scripts/build_population_layouts.py
@@ -23,7 +23,7 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("build_population_layouts")
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     cutout = atlite.Cutout(snakemake.input.cutout)
 
diff --git a/scripts/build_powerplants.py b/scripts/build_powerplants.py
index 9ca67a53..bd0ee74e 100755
--- a/scripts/build_powerplants.py
+++ b/scripts/build_powerplants.py
@@ -115,7 +115,7 @@ if __name__ == "__main__":
     configure_logging(snakemake)
 
     n = pypsa.Network(snakemake.input.base_network)
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
 
     ppl = (
         pm.powerplants(from_url=True)
@@ -134,12 +134,12 @@ if __name__ == "__main__":
     ppl = ppl.query('not (Country in @available_countries and Fueltype == "Bioenergy")')
     ppl = pd.concat([ppl, opsd])
 
-    ppl_query = snakemake.config["electricity"]["powerplants_filter"]
+    ppl_query = snakemake.params["electricity"]["powerplants_filter"]
     if isinstance(ppl_query, str):
         ppl.query(ppl_query, inplace=True)
 
     # add carriers from own powerplant files:
-    custom_ppl_query = snakemake.config["electricity"]["custom_powerplants"]
+    custom_ppl_query = snakemake.params["electricity"]["custom_powerplants"]
     ppl = add_custom_powerplants(
         ppl, snakemake.input.custom_powerplants, custom_ppl_query
     )
diff --git a/scripts/build_renewable_profiles.py b/scripts/build_renewable_profiles.py
index c0288aee..55541522 100644
--- a/scripts/build_renewable_profiles.py
+++ b/scripts/build_renewable_profiles.py
@@ -203,8 +203,8 @@ if __name__ == "__main__":
     configure_logging(snakemake)
 
     nprocesses = int(snakemake.threads)
-    noprogress = snakemake.config["run"].get("disable_progressbar", True)
-    config = snakemake.config["renewable"][snakemake.wildcards.technology]
+    noprogress = snakemake.params["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"]
diff --git a/scripts/build_retro_cost.py b/scripts/build_retro_cost.py
index 9dbfc375..c52d4eb6 100644
--- a/scripts/build_retro_cost.py
+++ b/scripts/build_retro_cost.py
@@ -305,7 +305,7 @@ def prepare_building_stock_data():
     u_values.set_index(["country_code", "subsector", "bage", "type"], inplace=True)
 
     #  only take in config.yaml specified countries into account
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
     area_tot = area_tot.loc[countries]
 
     return u_values, country_iso_dic, countries, area_tot, area
@@ -1040,7 +1040,7 @@ if __name__ == "__main__":
 
     #  ********  config  *********************************************************
 
-    retro_opts = snakemake.config["sector"]["retrofitting"]
+    retro_opts = snakemake.params["sector"]["retrofitting"]
     interest_rate = retro_opts["interest_rate"]
     annualise_cost = retro_opts["annualise_cost"]  # annualise the investment costs
     tax_weighting = retro_opts[
diff --git a/scripts/build_sequestration_potentials.py b/scripts/build_sequestration_potentials.py
index 012effe8..5c388b2e 100644
--- a/scripts/build_sequestration_potentials.py
+++ b/scripts/build_sequestration_potentials.py
@@ -41,7 +41,7 @@ if __name__ == "__main__":
             "build_sequestration_potentials", simpl="", clusters="181"
         )
 
-    cf = snakemake.config["sector"]["regional_co2_sequestration_potential"]
+    cf = snakemake.params["sector"]["regional_co2_sequestration_potential"]
 
     gdf = gpd.read_file(snakemake.input.sequestration_potential[0])
 
diff --git a/scripts/build_shapes.py b/scripts/build_shapes.py
index 50d21e12..f529517c 100644
--- a/scripts/build_shapes.py
+++ b/scripts/build_shapes.py
@@ -255,12 +255,12 @@ if __name__ == "__main__":
     configure_logging(snakemake)
 
     country_shapes = countries(
-        snakemake.input.naturalearth, snakemake.config["countries"]
+        snakemake.input.naturalearth, snakemake.params["countries"]
     )
     country_shapes.reset_index().to_file(snakemake.output.country_shapes)
 
     offshore_shapes = eez(
-        country_shapes, snakemake.input.eez, snakemake.config["countries"]
+        country_shapes, snakemake.input.eez, snakemake.params["countries"]
     )
     offshore_shapes.reset_index().to_file(snakemake.output.offshore_shapes)
 
diff --git a/scripts/build_solar_thermal_profiles.py b/scripts/build_solar_thermal_profiles.py
index f4eb1557..180007b7 100644
--- a/scripts/build_solar_thermal_profiles.py
+++ b/scripts/build_solar_thermal_profiles.py
@@ -27,9 +27,9 @@ if __name__ == "__main__":
     cluster = LocalCluster(n_workers=nprocesses, threads_per_worker=1)
     client = Client(cluster, asynchronous=True)
 
-    config = snakemake.config["solar_thermal"]
+    config = snakemake.params["solar_thermal"]
 
-    time = pd.date_range(freq="h", **snakemake.config["snapshots"])
+    time = pd.date_range(freq="h", **snakemake.params["snapshots"])
     cutout = atlite.Cutout(snakemake.input.cutout).sel(time=time)
 
     clustered_regions = (
diff --git a/scripts/build_temperature_profiles.py b/scripts/build_temperature_profiles.py
index 8f6d6c6c..ee06aebb 100644
--- a/scripts/build_temperature_profiles.py
+++ b/scripts/build_temperature_profiles.py
@@ -27,7 +27,7 @@ if __name__ == "__main__":
     cluster = LocalCluster(n_workers=nprocesses, threads_per_worker=1)
     client = Client(cluster, asynchronous=True)
 
-    time = pd.date_range(freq="h", **snakemake.config["snapshots"])
+    time = pd.date_range(freq="h", **snakemake.params["snapshots"])
     cutout = atlite.Cutout(snakemake.input.cutout).sel(time=time)
 
     clustered_regions = (
diff --git a/scripts/build_transport_demand.py b/scripts/build_transport_demand.py
index 6b8bd04f..dc2b94b9 100644
--- a/scripts/build_transport_demand.py
+++ b/scripts/build_transport_demand.py
@@ -175,9 +175,9 @@ if __name__ == "__main__":
         snakemake.input.pop_weighted_energy_totals, index_col=0
     )
 
-    options = snakemake.config["sector"]
+    options = snakemake.params["sector"]
 
-    snapshots = pd.date_range(freq="h", **snakemake.config["snapshots"], tz="UTC")
+    snapshots = pd.date_range(freq="h", **snakemake.params["snapshots"], tz="UTC")
 
     nyears = len(snapshots) / 8760
 
diff --git a/scripts/cluster_gas_network.py b/scripts/cluster_gas_network.py
index e7554dff..ba11ce1b 100755
--- a/scripts/cluster_gas_network.py
+++ b/scripts/cluster_gas_network.py
@@ -110,7 +110,7 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("cluster_gas_network", simpl="", clusters="37")
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     fn = snakemake.input.cleaned_gas_network
     df = pd.read_csv(fn, index_col=0)
diff --git a/scripts/cluster_network.py b/scripts/cluster_network.py
index 7572d3b3..78798804 100644
--- a/scripts/cluster_network.py
+++ b/scripts/cluster_network.py
@@ -468,18 +468,18 @@ if __name__ == "__main__":
         [
             tech
             for tech in n.generators.carrier.unique()
-            if tech in snakemake.config["renewable"]
+            if tech in snakemake.params["renewable"]
         ]
     )
 
-    exclude_carriers = snakemake.config["clustering"]["cluster_network"].get(
+    exclude_carriers = snakemake.params["clustering"]["cluster_network"].get(
         "exclude_carriers", []
     )
     aggregate_carriers = set(n.generators.carrier) - set(exclude_carriers)
     if snakemake.wildcards.clusters.endswith("m"):
         n_clusters = int(snakemake.wildcards.clusters[:-1])
         conventional = set(
-            snakemake.config["electricity"].get("conventional_carriers", [])
+            snakemake.params["electricity"].get("conventional_carriers", [])
         )
         aggregate_carriers = conventional.intersection(aggregate_carriers)
     elif snakemake.wildcards.clusters == "all":
@@ -495,13 +495,13 @@ if __name__ == "__main__":
             n, busmap, linemap, linemap, pd.Series(dtype="O")
         )
     else:
-        line_length_factor = snakemake.config["lines"]["length_factor"]
+        line_length_factor = snakemake.params["lines"]["length_factor"]
         Nyears = n.snapshot_weightings.objective.sum() / 8760
 
         hvac_overhead_cost = load_costs(
             snakemake.input.tech_costs,
-            snakemake.config["costs"],
-            snakemake.config["electricity"],
+            snakemake.params["costs"],
+            snakemake.params["electricity"],
             Nyears,
         ).at["HVAC overhead", "capital_cost"]
 
@@ -512,7 +512,7 @@ if __name__ == "__main__":
             ).all() or x.isnull().all(), "The `potential` configuration option must agree for all renewable carriers, for now!"
             return v
 
-        aggregation_strategies = snakemake.config["clustering"].get(
+        aggregation_strategies = snakemake.params["clustering"].get(
             "aggregation_strategies", {}
         )
         # translate str entries of aggregation_strategies to pd.Series functions:
@@ -521,7 +521,7 @@ if __name__ == "__main__":
             for p in aggregation_strategies.keys()
         }
 
-        custom_busmap = snakemake.config["enable"].get("custom_busmap", False)
+        custom_busmap = snakemake.params["enable"].get("custom_busmap", False)
         if custom_busmap:
             custom_busmap = pd.read_csv(
                 snakemake.input.custom_busmap, index_col=0, squeeze=True
@@ -539,7 +539,7 @@ if __name__ == "__main__":
             aggregate_carriers,
             line_length_factor,
             aggregation_strategies,
-            snakemake.config["solving"]["solver"]["name"],
+            snakemake.params["solving"]["solver"]["name"],
             cluster_config.get("algorithm", "hac"),
             cluster_config.get("feature", "solar+onwind-time"),
             hvac_overhead_cost,
diff --git a/scripts/make_summary.py b/scripts/make_summary.py
index 3d743942..56074525 100644
--- a/scripts/make_summary.py
+++ b/scripts/make_summary.py
@@ -198,7 +198,7 @@ def calculate_costs(n, label, costs):
 
 
 def calculate_cumulative_cost():
-    planning_horizons = snakemake.config["scenario"]["planning_horizons"]
+    planning_horizons = snakemake.params["scenario"]["planning_horizons"]
 
     cumulative_cost = pd.DataFrame(
         index=df["costs"].sum().index,
@@ -682,25 +682,25 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("make_summary")
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     networks_dict = {
         (cluster, ll, opt + sector_opt, planning_horizon): "results/"
         + snakemake.params.RDIR
         + f"/postnetworks/elec_s{simpl}_{cluster}_l{ll}_{opt}_{sector_opt}_{planning_horizon}.nc"
-        for simpl in snakemake.config["scenario"]["simpl"]
-        for cluster in snakemake.config["scenario"]["clusters"]
-        for opt in snakemake.config["scenario"]["opts"]
-        for sector_opt in snakemake.config["scenario"]["sector_opts"]
-        for ll in snakemake.config["scenario"]["ll"]
-        for planning_horizon in snakemake.config["scenario"]["planning_horizons"]
+        for simpl in snakemake.params["scenario"]["simpl"]
+        for cluster in snakemake.params["scenario"]["clusters"]
+        for opt in snakemake.params["scenario"]["opts"]
+        for sector_opt in snakemake.params["scenario"]["sector_opts"]
+        for ll in snakemake.params["scenario"]["ll"]
+        for planning_horizon in snakemake.params["scenario"]["planning_horizons"]
     }
 
-    Nyears = len(pd.date_range(freq="h", **snakemake.config["snapshots"])) / 8760
+    Nyears = len(pd.date_range(freq="h", **snakemake.params["snapshots"])) / 8760
 
     costs_db = prepare_costs(
         snakemake.input.costs,
-        snakemake.config["costs"],
+        snakemake.params["costs"],
         Nyears,
     )
 
@@ -710,7 +710,7 @@ if __name__ == "__main__":
 
     to_csv(df)
 
-    if snakemake.config["foresight"] == "myopic":
+    if snakemake.params["foresight"] == "myopic":
         cumulative_cost = calculate_cumulative_cost()
         cumulative_cost.to_csv(
             "results/" + snakemake.params.RDIR + "/csvs/cumulative_cost.csv"
diff --git a/scripts/plot_network.py b/scripts/plot_network.py
index 0a22b2e5..8aac9db1 100644
--- a/scripts/plot_network.py
+++ b/scripts/plot_network.py
@@ -70,7 +70,7 @@ def plot_map(
     transmission=False,
     with_legend=True,
 ):
-    tech_colors = snakemake.config["plotting"]["tech_colors"]
+    tech_colors = snakemake.params["plotting"]["tech_colors"]
 
     n = network.copy()
     assign_location(n)
@@ -116,7 +116,7 @@ def plot_map(
     costs = costs.stack()  # .sort_index()
 
     # hack because impossible to drop buses...
-    eu_location = snakemake.config["plotting"].get(
+    eu_location = snakemake.params["plotting"].get(
         "eu_node_location", dict(x=-5.5, y=46)
     )
     n.buses.loc["EU gas", "x"] = eu_location["x"]
@@ -315,7 +315,7 @@ def plot_h2_map(network, regions):
     h2_new = n.links[n.links.carrier == "H2 pipeline"]
     h2_retro = n.links[n.links.carrier == "H2 pipeline retrofitted"]
 
-    if snakemake.config["foresight"] == "myopic":
+    if snakemake.params["foresight"] == "myopic":
         # sum capacitiy for pipelines from different investment periods
         h2_new = group_pipes(h2_new)
 
@@ -558,7 +558,7 @@ def plot_ch4_map(network):
     link_widths_used = max_usage / linewidth_factor
     link_widths_used[max_usage < line_lower_threshold] = 0.0
 
-    tech_colors = snakemake.config["plotting"]["tech_colors"]
+    tech_colors = snakemake.params["plotting"]["tech_colors"]
 
     pipe_colors = {
         "gas pipeline": "#f08080",
@@ -700,7 +700,7 @@ def plot_map_without(network):
 
     # hack because impossible to drop buses...
     if "EU gas" in n.buses.index:
-        eu_location = snakemake.config["plotting"].get(
+        eu_location = snakemake.params["plotting"].get(
             "eu_node_location", dict(x=-5.5, y=46)
         )
         n.buses.loc["EU gas", "x"] = eu_location["x"]
@@ -876,7 +876,7 @@ def plot_series(network, carrier="AC", name="test"):
             stacked=True,
             linewidth=0.0,
             color=[
-                snakemake.config["plotting"]["tech_colors"][i.replace(suffix, "")]
+                snakemake.params["plotting"]["tech_colors"][i.replace(suffix, "")]
                 for i in new_columns
             ],
         )
@@ -930,14 +930,14 @@ if __name__ == "__main__":
             planning_horizons="2030",
         )
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     overrides = override_component_attrs(snakemake.input.overrides)
     n = pypsa.Network(snakemake.input.network, override_component_attrs=overrides)
 
     regions = gpd.read_file(snakemake.input.regions).set_index("name")
 
-    map_opts = snakemake.config["plotting"]["map"]
+    map_opts = snakemake.params["plotting"]["map"]
 
     if map_opts["boundaries"] is None:
         map_opts["boundaries"] = regions.total_bounds[[0, 2, 1, 3]] + [-1, 1, -1, 1]
diff --git a/scripts/plot_summary.py b/scripts/plot_summary.py
index cfa8e361..e18ff61b 100644
--- a/scripts/plot_summary.py
+++ b/scripts/plot_summary.py
@@ -142,10 +142,10 @@ def plot_costs():
 
     df = df.groupby(df.index.map(rename_techs)).sum()
 
-    to_drop = df.index[df.max(axis=1) < snakemake.config["plotting"]["costs_threshold"]]
+    to_drop = df.index[df.max(axis=1) < snakemake.params["plotting"]["costs_threshold"]]
 
     logger.info(
-        f"Dropping technology with costs below {snakemake.config['plotting']['costs_threshold']} EUR billion per year"
+        f"Dropping technology with costs below {snakemake.params['plotting']['costs_threshold']} EUR billion per year"
     )
     logger.debug(df.loc[to_drop])
 
@@ -165,7 +165,7 @@ def plot_costs():
         kind="bar",
         ax=ax,
         stacked=True,
-        color=[snakemake.config["plotting"]["tech_colors"][i] for i in new_index],
+        color=[snakemake.params["plotting"]["tech_colors"][i] for i in new_index],
     )
 
     handles, labels = ax.get_legend_handles_labels()
@@ -173,7 +173,7 @@ def plot_costs():
     handles.reverse()
     labels.reverse()
 
-    ax.set_ylim([0, snakemake.config["plotting"]["costs_max"]])
+    ax.set_ylim([0, snakemake.params["plotting"]["costs_max"]])
 
     ax.set_ylabel("System Cost [EUR billion per year]")
 
@@ -201,11 +201,11 @@ def plot_energy():
     df = df.groupby(df.index.map(rename_techs)).sum()
 
     to_drop = df.index[
-        df.abs().max(axis=1) < snakemake.config["plotting"]["energy_threshold"]
+        df.abs().max(axis=1) < snakemake.params["plotting"]["energy_threshold"]
     ]
 
     logger.info(
-        f"Dropping all technology with energy consumption or production below {snakemake.config['plotting']['energy_threshold']} TWh/a"
+        f"Dropping all technology with energy consumption or production below {snakemake.params['plotting']['energy_threshold']} TWh/a"
     )
     logger.debug(df.loc[to_drop])
 
@@ -227,7 +227,7 @@ def plot_energy():
         kind="bar",
         ax=ax,
         stacked=True,
-        color=[snakemake.config["plotting"]["tech_colors"][i] for i in new_index],
+        color=[snakemake.params["plotting"]["tech_colors"][i] for i in new_index],
     )
 
     handles, labels = ax.get_legend_handles_labels()
@@ -237,8 +237,8 @@ def plot_energy():
 
     ax.set_ylim(
         [
-            snakemake.config["plotting"]["energy_min"],
-            snakemake.config["plotting"]["energy_max"],
+            snakemake.params["plotting"]["energy_min"],
+            snakemake.params["plotting"]["energy_max"],
         ]
     )
 
@@ -287,7 +287,7 @@ def plot_balances():
         df = df.groupby(df.index.map(rename_techs)).sum()
 
         to_drop = df.index[
-            df.abs().max(axis=1) < snakemake.config["plotting"]["energy_threshold"] / 10
+            df.abs().max(axis=1) < snakemake.params["plotting"]["energy_threshold"] / 10
         ]
 
         if v[0] in co2_carriers:
@@ -296,7 +296,7 @@ def plot_balances():
             units = "TWh/a"
 
         logger.debug(
-            f"Dropping technology energy balance smaller than {snakemake.config['plotting']['energy_threshold']/10} {units}"
+            f"Dropping technology energy balance smaller than {snakemake.params['plotting']['energy_threshold']/10} {units}"
         )
         logger.debug(df.loc[to_drop])
 
@@ -317,7 +317,7 @@ def plot_balances():
             kind="bar",
             ax=ax,
             stacked=True,
-            color=[snakemake.config["plotting"]["tech_colors"][i] for i in new_index],
+            color=[snakemake.params["plotting"]["tech_colors"][i] for i in new_index],
         )
 
         handles, labels = ax.get_legend_handles_labels()
@@ -455,10 +455,10 @@ def plot_carbon_budget_distribution(input_eurostat):
     ax1 = plt.subplot(gs1[0, 0])
     ax1.set_ylabel("CO$_2$ emissions (Gt per year)", fontsize=22)
     ax1.set_ylim([0, 5])
-    ax1.set_xlim([1990, snakemake.config["scenario"]["planning_horizons"][-1] + 1])
+    ax1.set_xlim([1990, snakemake.params["scenario"]["planning_horizons"][-1] + 1])
 
     path_cb = "results/" + snakemake.params.RDIR + "/csvs/"
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
     e_1990 = co2_emissions_year(countries, input_eurostat, opts, year=1990)
     CO2_CAP = pd.read_csv(path_cb + "carbon_budget_distribution.csv", index_col=0)
 
@@ -545,7 +545,7 @@ if __name__ == "__main__":
 
         snakemake = mock_snakemake("plot_summary")
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     n_header = 4
 
@@ -555,7 +555,7 @@ if __name__ == "__main__":
 
     plot_balances()
 
-    for sector_opts in snakemake.config["scenario"]["sector_opts"]:
+    for sector_opts in snakemake.params["scenario"]["sector_opts"]:
         opts = sector_opts.split("-")
         for o in opts:
             if "cb" in o:
diff --git a/scripts/prepare_network.py b/scripts/prepare_network.py
index 14a003ae..46e4e74a 100755
--- a/scripts/prepare_network.py
+++ b/scripts/prepare_network.py
@@ -253,12 +253,12 @@ if __name__ == "__main__":
     Nyears = n.snapshot_weightings.objective.sum() / 8760.0
     costs = load_costs(
         snakemake.input.tech_costs,
-        snakemake.config["costs"],
-        snakemake.config["electricity"],
+        snakemake.params["costs"],
+        snakemake.params["electricity"],
         Nyears,
     )
 
-    set_line_s_max_pu(n, snakemake.config["lines"]["s_max_pu"])
+    set_line_s_max_pu(n, snakemake.params["lines"]["s_max_pu"])
 
     for o in opts:
         m = re.match(r"^\d+h$", o, re.IGNORECASE)
@@ -269,7 +269,7 @@ if __name__ == "__main__":
     for o in opts:
         m = re.match(r"^\d+seg$", o, re.IGNORECASE)
         if m is not None:
-            solver_name = snakemake.config["solving"]["solver"]["name"]
+            solver_name = snakemake.params["solving"]["solver"]["name"]
             n = apply_time_segmentation(n, m.group(0)[:-3], solver_name)
             break
 
@@ -277,11 +277,11 @@ if __name__ == "__main__":
         if "Co2L" in o:
             m = re.findall("[0-9]*\.?[0-9]+$", o)
             if len(m) > 0:
-                co2limit = float(m[0]) * snakemake.config["electricity"]["co2base"]
+                co2limit = float(m[0]) * snakemake.params["electricity"]["co2base"]
                 add_co2limit(n, co2limit, Nyears)
                 logger.info("Setting CO2 limit according to wildcard value.")
             else:
-                add_co2limit(n, snakemake.config["electricity"]["co2limit"], Nyears)
+                add_co2limit(n, snakemake.params["electricity"]["co2limit"], Nyears)
                 logger.info("Setting CO2 limit according to config value.")
             break
 
@@ -293,7 +293,7 @@ if __name__ == "__main__":
                 add_gaslimit(n, limit, Nyears)
                 logger.info("Setting gas usage limit according to wildcard value.")
             else:
-                add_gaslimit(n, snakemake.config["electricity"].get("gaslimit"), Nyears)
+                add_gaslimit(n, snakemake.params["electricity"].get("gaslimit"), Nyears)
                 logger.info("Setting gas usage limit according to config value.")
             break
 
@@ -322,7 +322,7 @@ if __name__ == "__main__":
                 add_emission_prices(n, dict(co2=float(m[0])))
             else:
                 logger.info("Setting emission prices according to config value.")
-                add_emission_prices(n, snakemake.config["costs"]["emission_prices"])
+                add_emission_prices(n, snakemake.params["costs"]["emission_prices"])
             break
 
     ll_type, factor = snakemake.wildcards.ll[0], snakemake.wildcards.ll[1:]
@@ -330,8 +330,8 @@ if __name__ == "__main__":
 
     set_line_nom_max(
         n,
-        s_nom_max_set=snakemake.config["lines"].get("s_nom_max,", np.inf),
-        p_nom_max_set=snakemake.config["links"].get("p_nom_max,", np.inf),
+        s_nom_max_set=snakemake.params["lines"].get("s_nom_max,", np.inf),
+        p_nom_max_set=snakemake.params["links"].get("p_nom_max,", np.inf),
     )
 
     if "ATK" in opts:
diff --git a/scripts/prepare_sector_network.py b/scripts/prepare_sector_network.py
index 1cb7146e..c69f7290 100644
--- a/scripts/prepare_sector_network.py
+++ b/scripts/prepare_sector_network.py
@@ -200,12 +200,12 @@ def co2_emissions_year(
     """
     Calculate CO2 emissions in one specific year (e.g. 1990 or 2018).
     """
-    emissions_scope = snakemake.config["energy"]["emissions"]
+    emissions_scope = snakemake.params["energy"]["emissions"]
     eea_co2 = build_eea_co2(snakemake.input.co2, year, emissions_scope)
 
     # TODO: read Eurostat data from year > 2014
     # this only affects the estimation of CO2 emissions for BA, RS, AL, ME, MK
-    report_year = snakemake.config["energy"]["eurostat_report_year"]
+    report_year = snakemake.params["energy"]["eurostat_report_year"]
     if year > 2014:
         eurostat_co2 = build_eurostat_co2(
             input_eurostat, countries, report_year, year=2014
@@ -241,7 +241,7 @@ def build_carbon_budget(o, input_eurostat, fn, emissions_scope, report_year):
         carbon_budget = float(o[o.find("cb") + 2 : o.find("ex")])
         r = float(o[o.find("ex") + 2 :])
 
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
 
     e_1990 = co2_emissions_year(
         countries, input_eurostat, opts, emissions_scope, report_year, year=1990
@@ -252,7 +252,7 @@ def build_carbon_budget(o, input_eurostat, fn, emissions_scope, report_year):
         countries, input_eurostat, opts, emissions_scope, report_year, year=2018
     )
 
-    planning_horizons = snakemake.config["scenario"]["planning_horizons"]
+    planning_horizons = snakemake.params["scenario"]["planning_horizons"]
     t_0 = planning_horizons[0]
 
     if "be" in o:
@@ -391,7 +391,7 @@ def update_wind_solar_costs(n, costs):
         with xr.open_dataset(profile) as ds:
             underwater_fraction = ds["underwater_fraction"].to_pandas()
             connection_cost = (
-                snakemake.config["lines"]["length_factor"]
+                snakemake.params["lines"]["length_factor"]
                 * ds["average_distance"].to_pandas()
                 * (
                     underwater_fraction
@@ -483,8 +483,8 @@ def remove_elec_base_techs(n):
     batteries and H2) from base electricity-only network, since they're added
     here differently using links.
     """
-    for c in n.iterate_components(snakemake.config["pypsa_eur"]):
-        to_keep = snakemake.config["pypsa_eur"][c.name]
+    for c in n.iterate_components(snakemake.params["pypsa_eur"]):
+        to_keep = snakemake.params["pypsa_eur"][c.name]
         to_remove = pd.Index(c.df.carrier.unique()).symmetric_difference(to_keep)
         if to_remove.empty:
             continue
@@ -674,7 +674,7 @@ def add_dac(n, costs):
 def add_co2limit(n, nyears=1.0, limit=0.0):
     logger.info(f"Adding CO2 budget limit as per unit of 1990 levels of {limit}")
 
-    countries = snakemake.config["countries"]
+    countries = snakemake.params["countries"]
 
     sectors = emission_sectors_from_opts(opts)
 
@@ -787,7 +787,7 @@ def add_ammonia(n, costs):
 
     nodes = pop_layout.index
 
-    cf_industry = snakemake.config["industry"]
+    cf_industry = snakemake.params["industry"]
 
     n.add("Carrier", "NH3")
 
@@ -1102,7 +1102,7 @@ def add_storage_and_grids(n, costs):
             lifetime=costs.at["OCGT", "lifetime"],
         )
 
-    cavern_types = snakemake.config["sector"]["hydrogen_underground_storage_locations"]
+    cavern_types = snakemake.params["sector"]["hydrogen_underground_storage_locations"]
     h2_caverns = pd.read_csv(snakemake.input.h2_cavern, index_col=0)
 
     if not h2_caverns.empty and options["hydrogen_underground_storage"]:
@@ -3266,11 +3266,11 @@ if __name__ == "__main__":
             planning_horizons="2030",
         )
 
-    logging.basicConfig(level=snakemake.config["logging"]["level"])
+    logging.basicConfig(level=snakemake.params["logging"]["level"])
 
     update_config_with_sector_opts(snakemake.config, snakemake.wildcards.sector_opts)
 
-    options = snakemake.config["sector"]
+    options = snakemake.params["sector"]
 
     opts = snakemake.wildcards.sector_opts.split("-")
 
@@ -3285,7 +3285,7 @@ if __name__ == "__main__":
 
     costs = prepare_costs(
         snakemake.input.costs,
-        snakemake.config["costs"],
+        snakemake.params["costs"],
         nyears,
     )
 
@@ -3297,10 +3297,10 @@ if __name__ == "__main__":
 
     spatial = define_spatial(pop_layout.index, options)
 
-    if snakemake.config["foresight"] == "myopic":
+    if snakemake.params["foresight"] == "myopic":
         add_lifetime_wind_solar(n, costs)
 
-        conventional = snakemake.config["existing_capacities"]["conventional_carriers"]
+        conventional = snakemake.params["existing_capacities"]["conventional_carriers"]
         for carrier in conventional:
             add_carrier_buses(n, carrier)
 
@@ -3365,19 +3365,19 @@ if __name__ == "__main__":
     if options["allam_cycle"]:
         add_allam(n, costs)
 
-    solver_name = snakemake.config["solving"]["solver"]["name"]
+    solver_name = snakemake.params["solving"]["solver"]["name"]
     n = set_temporal_aggregation(n, opts, solver_name)
 
     limit_type = "config"
-    limit = get(snakemake.config["co2_budget"], investment_year)
+    limit = get(snakemake.params["co2_budget"], investment_year)
     for o in opts:
         if "cb" not in o:
             continue
         limit_type = "carbon budget"
         fn = "results/" + snakemake.params.RDIR + "/csvs/carbon_budget_distribution.csv"
         if not os.path.exists(fn):
-            emissions_scope = snakemake.config["energy"]["emissions"]
-            report_year = snakemake.config["energy"]["eurostat_report_year"]
+            emissions_scope = snakemake.params["energy"]["emissions"]
+            report_year = snakemake.params["energy"]["eurostat_report_year"]
             build_carbon_budget(
                 o, snakemake.input.eurostat, fn, emissions_scope, report_year
             )
@@ -3412,8 +3412,8 @@ if __name__ == "__main__":
     if options["electricity_grid_connection"]:
         add_electricity_grid_connection(n, costs)
 
-    first_year_myopic = (snakemake.config["foresight"] == "myopic") and (
-        snakemake.config["scenario"]["planning_horizons"][0] == investment_year
+    first_year_myopic = (snakemake.params["foresight"] == "myopic") and (
+        snakemake.params["scenario"]["planning_horizons"][0] == investment_year
     )
 
     if options.get("cluster_heat_buses", False) and not first_year_myopic:
diff --git a/scripts/retrieve_databundle.py b/scripts/retrieve_databundle.py
index 0c6a7feb..0271166c 100644
--- a/scripts/retrieve_databundle.py
+++ b/scripts/retrieve_databundle.py
@@ -53,7 +53,7 @@ if __name__ == "__main__":
         snakemake
     )  # TODO Make logging compatible with progressbar (see PR #102)
 
-    if snakemake.config["tutorial"]:
+    if snakemake.params["tutorial"]:
         url = "https://zenodo.org/record/3517921/files/pypsa-eur-tutorial-data-bundle.tar.xz"
     else:
         url = "https://zenodo.org/record/3517935/files/pypsa-eur-data-bundle.tar.xz"
@@ -63,7 +63,7 @@ if __name__ == "__main__":
     to_fn = Path(f"{rootpath}/data")
 
     logger.info(f"Downloading databundle from '{url}'.")
-    disable_progress = snakemake.config["run"].get("disable_progressbar", False)
+    disable_progress = snakemake.params["run"].get("disable_progressbar", False)
     progress_retrieve(url, tarball_fn, disable=disable_progress)
 
     logger.info("Extracting databundle.")
diff --git a/scripts/simplify_network.py b/scripts/simplify_network.py
index 2be8c36a..bb7f615c 100644
--- a/scripts/simplify_network.py
+++ b/scripts/simplify_network.py
@@ -510,7 +510,7 @@ if __name__ == "__main__":
 
     n = pypsa.Network(snakemake.input.network)
 
-    aggregation_strategies = snakemake.config["clustering"].get(
+    aggregation_strategies = snakemake.params["clustering"].get(
         "aggregation_strategies", {}
     )
     # translate str entries of aggregation_strategies to pd.Series functions:
@@ -525,8 +525,8 @@ if __name__ == "__main__":
 
     technology_costs = load_costs(
         snakemake.input.tech_costs,
-        snakemake.config["costs"],
-        snakemake.config["electricity"],
+        snakemake.params["costs"],
+        snakemake.params["electricity"],
         Nyears,
     )
 
@@ -536,7 +536,7 @@ if __name__ == "__main__":
 
     busmaps = [trafo_map, simplify_links_map]
 
-    cluster_config = snakemake.config["clustering"]["simplify_network"]
+    cluster_config = snakemake.params["clustering"]["simplify_network"]
     if cluster_config.get("remove_stubs", True):
         n, stub_map = remove_stubs(
             n,
diff --git a/scripts/solve_network.py b/scripts/solve_network.py
index ff1c0ccf..c7041e85 100644
--- a/scripts/solve_network.py
+++ b/scripts/solve_network.py
@@ -663,7 +663,7 @@ if __name__ == "__main__":
     if "sector_opts" in snakemake.wildcards.keys():
         opts += "-" + snakemake.wildcards.sector_opts
     opts = [o for o in opts.split("-") if o != ""]
-    solve_opts = snakemake.config["solving"]["options"]
+    solve_opts = snakemake.params["solving"]["options"]
 
     np.random.seed(solve_opts.get("seed", 123))
 
diff --git a/scripts/solve_operations_network.py b/scripts/solve_operations_network.py
index 25fe0753..c1b2be6f 100644
--- a/scripts/solve_operations_network.py
+++ b/scripts/solve_operations_network.py
@@ -42,7 +42,7 @@ if __name__ == "__main__":
 
     opts = (snakemake.wildcards.opts + "-" + snakemake.wildcards.sector_opts).split("-")
     opts = [o for o in opts if o != ""]
-    solve_opts = snakemake.config["solving"]["options"]
+    solve_opts = snakemake.params["solving"]["options"]
 
     np.random.seed(solve_opts.get("seed", 123))