diff --git a/Snakefile b/Snakefile
index 1a7cbe9f..f4f37049 100644
--- a/Snakefile
+++ b/Snakefile
@@ -68,7 +68,7 @@ if config["enable"].get("prepare_links_p_nom", False):
             "logs/" + RDIR + "prepare_links_p_nom.log",
         threads: 1
         resources:
-            mem_mb=500,
+            mem_mb=1500,
         script:
             "scripts/prepare_links_p_nom.py"
 
@@ -167,7 +167,7 @@ rule base_network:
         "benchmarks/" + RDIR + "base_network"
     threads: 1
     resources:
-        mem_mb=500,
+        mem_mb=1500,
     script:
         "scripts/base_network.py"
 
@@ -190,7 +190,7 @@ rule build_shapes:
         "logs/" + RDIR + "build_shapes.log",
     threads: 1
     resources:
-        mem_mb=500,
+        mem_mb=1500,
     script:
         "scripts/build_shapes.py"
 
@@ -657,7 +657,7 @@ rule make_summary:
         + RDIR
         + "make_summary/elec_s{simpl}_{clusters}_ec_l{ll}_{opts}_{country}.log",
     resources:
-        mem_mb=500,
+        mem_mb=1500,
     script:
         "scripts/make_summary.py"
 
@@ -676,7 +676,7 @@ rule plot_summary:
         + RDIR
         + "plot_summary/{summary}_elec_s{simpl}_{clusters}_ec_l{ll}_{opts}_{country}_{ext}.log",
     resources:
-        mem_mb=500,
+        mem_mb=1500,
     script:
         "scripts/plot_summary.py"
 
@@ -706,6 +706,6 @@ rule plot_p_nom_max:
         + RDIR
         + "plot_p_nom_max/elec_s{simpl}_{clusts}_{techs}_{country}_{ext}.log",
     resources:
-        mem_mb=500,
+        mem_mb=1500,
     script:
         "scripts/plot_p_nom_max.py"