diff --git a/rules/solve_electricity.smk b/rules/solve_electricity.smk
index f0ce55c8..30520dc1 100644
--- a/rules/solve_electricity.smk
+++ b/rules/solve_electricity.smk
@@ -7,11 +7,15 @@ rule solve_network:
     params:
         solving=config["solving"],
         config_parts={
-                    "foresight":config["foresight"],
-                    "planning_horizons":config["scenario"]["planning_horizons"],
-                    "co2_sequestration_potential":config["sector"].get("co2_sequestration_potential", 200),
-                    "H2_retrofit_capacity_per_CH4":config["sector"]["H2_retrofit_capacity_per_CH4"]
-                    },
+            "foresight": config["foresight"],
+            "planning_horizons": config["scenario"]["planning_horizons"],
+            "co2_sequestration_potential": config["sector"].get(
+                "co2_sequestration_potential", 200
+            ),
+            "H2_retrofit_capacity_per_CH4": config["sector"][
+            "H2_retrofit_capacity_per_CH4"
+            ],
+        },
     input:
         network=RESOURCES + "networks/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}.nc",
     output:
diff --git a/rules/solve_myopic.smk b/rules/solve_myopic.smk
index c682f780..22555f75 100644
--- a/rules/solve_myopic.smk
+++ b/rules/solve_myopic.smk
@@ -85,11 +85,15 @@ rule solve_sector_network_myopic:
     params:
         solving=config["solving"],
         config_parts={
-                    "foresight":config["foresight"],
-                    "planning_horizons":config["scenario"]["planning_horizons"],
-                    "co2_sequestration_potential":config["sector"].get("co2_sequestration_potential", 200),
-                    "H2_retrofit_capacity_per_CH4":config["sector"]["H2_retrofit_capacity_per_CH4"]
-                    },
+            "foresight": config["foresight"],
+            "planning_horizons": config["scenario"]["planning_horizons"],
+            "co2_sequestration_potential": config["sector"].get(
+                "co2_sequestration_potential", 200
+            ),
+            "H2_retrofit_capacity_per_CH4": config["sector"][
+            "H2_retrofit_capacity_per_CH4"
+            ],
+        },
     input:
         overrides="data/override_component_attrs",
         network=RESULTS
diff --git a/rules/solve_overnight.smk b/rules/solve_overnight.smk
index 050372bd..a523f132 100644
--- a/rules/solve_overnight.smk
+++ b/rules/solve_overnight.smk
@@ -7,11 +7,15 @@ rule solve_sector_network:
     params:
         solving=config["solving"],
         config_parts={
-                    "foresight":config["foresight"],
-                    "planning_horizons":config["scenario"]["planning_horizons"],
-                    "co2_sequestration_potential":config["sector"].get("co2_sequestration_potential", 200),
-                    "H2_retrofit_capacity_per_CH4":config["sector"]["H2_retrofit_capacity_per_CH4"]
-                    },
+            "foresight": config["foresight"],
+            "planning_horizons": config["scenario"]["planning_horizons"],
+            "co2_sequestration_potential": config["sector"].get(
+                "co2_sequestration_potential", 200
+            ),
+            "H2_retrofit_capacity_per_CH4": config["sector"][
+            "H2_retrofit_capacity_per_CH4"
+            ],
+        },
     input:
         overrides="data/override_component_attrs",
         network=RESULTS
diff --git a/scripts/solve_network.py b/scripts/solve_network.py
index d615fc85..6e07e340 100644
--- a/scripts/solve_network.py
+++ b/scripts/solve_network.py
@@ -222,7 +222,7 @@ def add_CCL_constraints(n, config):
         agg_p_nom_limits: data/agg_p_nom_minmax.csv
     """
     agg_p_nom_minmax = pd.read_csv(
-        config['electricity']["agg_p_nom_limits"], index_col=[0, 1]
+        config["electricity"]["agg_p_nom_limits"], index_col=[0, 1]
     )
     logger.info("Adding generation capacity constraints per carrier and country")
     p_nom = n.model["Generator-p_nom"]
@@ -370,7 +370,7 @@ def add_SAFE_constraints(n, config):
     Which sets a reserve margin of 10% above the peak demand.
     """
     peakdemand = n.loads_t.p_set.sum(axis=1).max()
-    margin = 1.0 + config['electricity']["SAFE_reservemargin"]
+    margin = 1.0 + config["electricity"]["SAFE_reservemargin"]
     reserve_margin = peakdemand * margin
     # TODO: do not take this from the plotting config!
     conv_techs = config["plotting"]["conv_techs"]
@@ -675,10 +675,16 @@ if __name__ == "__main__":
     else:
         n = pypsa.Network(snakemake.input.network)
 
-    n = prepare_network(n, solve_opts, config=snakemake.config, param=snakemake.params["config_parts"])
+    n = prepare_network(
+        n, solve_opts, config=snakemake.config, param=snakemake.params["config_parts"]
+    )
 
     n = solve_network(
-        n, config=snakemake.config, solving_param=snakemake.params["solving"], opts=opts, log_fn=snakemake.log.solver
+        n,
+        config=snakemake.config,
+        solving_param=snakemake.params["solving"],
+        opts=opts,
+        log_fn=snakemake.log.solver,
     )
 
     n.meta = dict(snakemake.config, **dict(wildcards=dict(snakemake.wildcards)))