diff --git a/src/libs/antares/study/area/list.cpp b/src/libs/antares/study/area/list.cpp
index cf2624515f..7af3a6a5a7 100644
--- a/src/libs/antares/study/area/list.cpp
+++ b/src/libs/antares/study/area/list.cpp
@@ -1199,6 +1199,7 @@ bool AreaList::loadFromFolder(const StudyLoadOptions& options)
                 fs::path folder = stsFolder / "clusters" / area->id.c_str();
 
                 ret = area->shortTermStorage.createSTStorageClustersFromIniFile(folder) && ret;
+                ret = area->shortTermStorage.LoadConstraintsFromIniFile(folder) && ret;
             }
         }
         else
diff --git a/src/libs/antares/study/include/antares/study/parts/short-term-storage/AdditionalConstraint.h b/src/libs/antares/study/include/antares/study/parts/short-term-storage/AdditionalConstraint.h
index 6b413d81b9..65ace7da11 100644
--- a/src/libs/antares/study/include/antares/study/parts/short-term-storage/AdditionalConstraint.h
+++ b/src/libs/antares/study/include/antares/study/parts/short-term-storage/AdditionalConstraint.h
@@ -25,6 +25,7 @@
 
 namespace Antares::Data::ShortTermStorage {
     struct AdditionalConstraint {
+        std::string name;
         std::string cluster_id;
         std::string variable;
         std::string operatorType;
diff --git a/src/libs/antares/study/parts/short-term-storage/container.cpp b/src/libs/antares/study/parts/short-term-storage/container.cpp
index 823bcf5575..3bfe7e40a5 100644
--- a/src/libs/antares/study/parts/short-term-storage/container.cpp
+++ b/src/libs/antares/study/parts/short-term-storage/container.cpp
@@ -87,7 +87,7 @@ bool STStorageInput::LoadConstraintsFromIniFile(const fs::path& parent_path)
     for (auto* section = ini.firstSection; section; section = section->next)
     {
         AdditionalConstraint constraint;
-
+        constraint.name = section->name.c_str();
         for (auto* property = section->firstProperty; property; property = property->next)
         {
             const std::string key = property->key;
diff --git a/src/solver/optimisation/opt_decompte_variables_et_contraintes.cpp b/src/solver/optimisation/opt_decompte_variables_et_contraintes.cpp
index d1a0f00ea2..490d14d062 100644
--- a/src/solver/optimisation/opt_decompte_variables_et_contraintes.cpp
+++ b/src/solver/optimisation/opt_decompte_variables_et_contraintes.cpp
@@ -144,12 +144,12 @@ int OPT_DecompteDesVariablesEtDesContraintesDuProblemeAOptimiser(PROBLEME_HEBDO*
             ProblemeAResoudre->NombreDeContraintes += 2; /* 2 constraints bounding the overall
                                                             energy generated over the period (10a in
                                                             the reference document) */
-            ProblemeAResoudre
-              ->NombreDeContraintes++; /* 1 constraint setting the level variation over the period
-                                    (10b in the reference document) */
-            ProblemeAResoudre
-              ->NombreDeContraintes++; /* 1 constraint bounding the overall energy pumped over the
-                                    period (10c in the reference document) */
+            ProblemeAResoudre->NombreDeContraintes++;
+            /* 1 constraint setting the level variation over the period
+                                               (10b in the reference document) */
+            ProblemeAResoudre->NombreDeContraintes++;
+            /* 1 constraint bounding the overall energy pumped over the
+                                               period (10c in the reference document) */
         }
 
         if (!Pump && TurbEntreBornes && !MonitorHourlyLev)
@@ -192,16 +192,16 @@ int OPT_DecompteDesVariablesEtDesContraintesDuProblemeAOptimiser(PROBLEME_HEBDO*
             ProblemeAResoudre->NombreDeContraintes += 2; /* 2 constraints bounding the overall
                                                             energy generated over the period (10a in
                                                             the reference document) */
-            ProblemeAResoudre
-              ->NombreDeContraintes++; /* 1 constraint setting the level variation over the period
-                                    (10b in the reference document) */
-            ProblemeAResoudre
-              ->NombreDeContraintes++; /* 1 constraint bounding the overall energy pumped over the
-                                    period (10c in the reference document) */
-            ProblemeAResoudre->NombreDeContraintes
-              += nombreDePasDeTempsPourUneOptimisation; /* T constraints expressing the level hourly
-                                                     variations (14a in the reference
-                                                     document) */
+            ProblemeAResoudre->NombreDeContraintes++;
+            /* 1 constraint setting the level variation over the period
+                                               (10b in the reference document) */
+            ProblemeAResoudre->NombreDeContraintes++;
+            /* 1 constraint bounding the overall energy pumped over the
+                                               period (10c in the reference document) */
+            ProblemeAResoudre->NombreDeContraintes += nombreDePasDeTempsPourUneOptimisation;
+            /* T constraints expressing the level hourly
+                                                                variations (14a in the reference
+                                                                document) */
         }
         if (!Pump && !TurbEntreBornes && MonitorHourlyLev)
         {
@@ -245,6 +245,12 @@ int OPT_DecompteDesVariablesEtDesContraintesDuProblemeAOptimiser(PROBLEME_HEBDO*
                     ProblemeAResoudre->NombreDeContraintes
                       += 2 * nombreDePasDeTempsPourUneOptimisation;
                 }
+                if (!storage.additional_constraints.empty())
+                {
+                    ProblemeAResoudre->NombreDeContraintes
+                      += storage.additional_constraints.size()
+                         * nombreDePasDeTempsPourUneOptimisation;
+                }
             }
         }
     }
diff --git a/src/solver/simulation/include/antares/solver/simulation/sim_structure_probleme_economique.h b/src/solver/simulation/include/antares/solver/simulation/sim_structure_probleme_economique.h
index d24fb25bc4..46468650b6 100644
--- a/src/solver/simulation/include/antares/solver/simulation/sim_structure_probleme_economique.h
+++ b/src/solver/simulation/include/antares/solver/simulation/sim_structure_probleme_economique.h
@@ -182,7 +182,7 @@ struct PROPERTIES
     bool penalizeVariationInjection;
 
     std::shared_ptr<Antares::Data::ShortTermStorage::Series> series;
-
+    std::vector<Antares::Data::ShortTermStorage::AdditionalConstraint> additional_constraints;
     int clusterGlobalIndex;
     std::string name;
 };
diff --git a/src/solver/simulation/sim_calcul_economique.cpp b/src/solver/simulation/sim_calcul_economique.cpp
index 3d29d3ee42..c6c36b1b14 100644
--- a/src/solver/simulation/sim_calcul_economique.cpp
+++ b/src/solver/simulation/sim_calcul_economique.cpp
@@ -59,7 +59,7 @@ static void importShortTermStorages(
             toInsert.penalizeVariationInjection = st.properties.penalizeVariationInjection;
             toInsert.penalizeVariationWithdrawal = st.properties.penalizeVariationWithdrawal;
             toInsert.name = st.properties.name;
-
+            toInsert.additional_constraints = st.additional_constraints;
             toInsert.series = st.series;
 
             // TODO add missing properties, or use the same struct