diff --git a/Snakefile b/Snakefile
index 46492242f..d18a91efc 100644
--- a/Snakefile
+++ b/Snakefile
@@ -57,9 +57,7 @@ RESDIR = config["results_dir"].strip("/") + f"/{SECDIR}"
 load_data_paths = get_load_paths_gegis("data", config)
 
 if config["enable"].get("retrieve_cost_data", True):
-    COSTS = (
-        "resources/" + RDIR + f"costs_{config["costs"]["year"]}.csv"
-    )
+    COSTS = "resources/" + RDIR + f"costs_{config['costs']['year']}.csv"
 else:
     COSTS = "data/costs.csv"
 ATLITE_NPROCESSES = config["atlite"].get("nprocesses", 4)
@@ -394,14 +392,15 @@ if config["enable"].get("retrieve_cost_data", True):
 
     rule retrieve_cost_data:
         params:
-            version=config['costs']['version'],
+            version=config["costs"]["version"],
         input:
             HTTP.remote(
-                "raw.githubusercontent.com/PyPSA/technology-data/{params.version}/outputs/costs_{year}.csv",
+                f"raw.githubusercontent.com/PyPSA/technology-data/{config['costs']['version']}/outputs/"
+                + "costs_{year}.csv",
                 keep_local=True,
             ),
         output:
-            RDIR + "costs_{year}.csv",
+            "resources/" + RDIR + "costs_{year}.csv",
         log:
             "logs/" + RDIR + "retrieve_cost_data_{year}.log",
         resources:
@@ -1060,7 +1059,7 @@ rule prepare_sector_network:
     input:
         network=RESDIR
         + "prenetworks/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}_{sopts}_{planning_horizons}_{discountrate}_{demand}_presec.nc",
-        costs=RDIR + "costs_{planning_horizons}.csv",
+        costs="resources/" + RDIR + "costs_{planning_horizons}.csv",
         h2_cavern="data/hydrogen_salt_cavern_potentials.csv",
         nodal_energy_totals="resources/"
         + SECDIR
@@ -1152,7 +1151,7 @@ rule add_export:
     input:
         overrides="data/override_component_attrs",
         export_ports="resources/" + SECDIR + "export_ports.csv",
-        costs=RDIR + "costs_{planning_horizons}.csv",
+        costs="resources/" + RDIR + "costs_{planning_horizons}.csv",
         ship_profile="resources/" + SECDIR + "ship_profile_{h2export}TWh.csv",
         network=RESDIR
         + "prenetworks/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}_{sopts}_{planning_horizons}_{discountrate}_{demand}.nc",
@@ -1610,7 +1609,7 @@ if config["foresight"] == "overnight":
             # + "prenetworks/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}_{sopts}_{planning_horizons}_{discountrate}.nc",
             network=RESDIR
             + "prenetworks/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}_{sopts}_{planning_horizons}_{discountrate}_{demand}_{h2export}export.nc",
-            costs=RDIR + "costs_{planning_horizons}.csv",
+            costs="resources/" + RDIR + "costs_{planning_horizons}.csv",
             configs=SDIR + "configs/config.yaml",  # included to trigger copy_config rule
         output:
             RESDIR
@@ -1655,7 +1654,7 @@ rule make_sector_summary:
             **config["costs"],
             **config["export"],
         ),
-        costs=RDIR + "costs_{planning_horizons}.csv",
+        costs="resources/" + RDIR + "costs_{planning_horizons}.csv",
         plots=expand(
             RESDIR
             + "maps/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}_{sopts}-costs-all_{planning_horizons}_{discountrate}_{demand}_{h2export}export.pdf",
@@ -1892,7 +1891,7 @@ rule build_industry_demand:  #default data
         + SECDIR
         + "demand/base_industry_totals_{planning_horizons}_{demand}.csv",
         industrial_database="data/industrial_database.csv",
-        costs=RDIR + "costs_{planning_horizons}.csv",
+        costs="resources/" + RDIR + "costs_{planning_horizons}.csv",
         industry_growth_cagr="data/demand/industry_growth_cagr.csv",
     output:
         industrial_energy_demand_per_node="resources/"