diff --git a/etrago/tools/constraints.py b/etrago/tools/constraints.py
index 82a5037b..3d9fbaa5 100755
--- a/etrago/tools/constraints.py
+++ b/etrago/tools/constraints.py
@@ -2737,7 +2737,9 @@ def functionality(self, network, snapshots):
         if "CH4" in network.buses.carrier.values:
             if self.args["method"]["pyomo"]:
                 add_chp_constraints(network, snapshots)
-                if self.args["scn_name"] != "status2019":
+                if (self.args["scn_name"] != "status2019") & (
+                    len(network.snapshots) > 1500
+                ):
                     add_ch4_constraints(self, network, snapshots)
             else:
                 add_chp_constraints_nmp(network)