diff --git a/config.default.yaml b/config.default.yaml
index 5218bc22..1305456a 100755
--- a/config.default.yaml
+++ b/config.default.yaml
@@ -464,7 +464,7 @@ sector:
   solar_cf_correction: 0.788457  # =  >>> 1/1.2683
   marginal_cost_storage: 0. #1e-4
   methanation: true
-  helmeth: true
+  helmeth: false
   coal_cc: false
   dac: true
   co2_vent: false