diff --git a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchableOffUnitsPlant.h b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchableOffUnitsPlant.h
index 6e20d3afa7..3310663ad2 100644
--- a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchableOffUnitsPlant.h
+++ b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchableOffUnitsPlant.h
@@ -106,7 +106,7 @@ class ReserveParticipationByDispatchableOffUnitsPlant
         pNbYearsParallel = study->maxNbYearsInParallel;
         pValuesForTheCurrentYear = new VCardType::IntermediateValuesBaseType[pNbYearsParallel];
 
-        // Get the area
+        // Get the number of Onthermal reserveParticipations
         pSize = area->thermal.list.reserveParticipationsCount();
 
         if (pSize)
diff --git a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchableOnUnitsPlant.h b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchableOnUnitsPlant.h
index 7fd761806f..ba377ffae1 100644
--- a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchableOnUnitsPlant.h
+++ b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchableOnUnitsPlant.h
@@ -106,7 +106,7 @@ class ReserveParticipationByDispatchableOnUnitsPlant
         pNbYearsParallel = study->maxNbYearsInParallel;
         pValuesForTheCurrentYear = new VCardType::IntermediateValuesBaseType[pNbYearsParallel];
 
-        // Get the area
+        // Get the number of Onthermal reserveParticipations
         pSize = area->thermal.list.reserveParticipationsCount();
 
         if (pSize)
diff --git a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchablePlant.h b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchablePlant.h
index d184239ccf..863e203898 100644
--- a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchablePlant.h
+++ b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByDispatchablePlant.h
@@ -106,16 +106,8 @@ class ReserveParticipationByDispatchableOnUnitsPlant
         pNbYearsParallel = study->maxNbYearsInParallel;
         pValuesForTheCurrentYear = new VCardType::IntermediateValuesBaseType[pNbYearsParallel];
 
-        // Get the area
-        pSize = 0;
-        for (int areaIndex = 0; areaIndex < study->areas.size(); areaIndex++)
-        {
-            if (study->areas[areaIndex]->allCapacityReservations.size() > 0)
-            {
-                pSize = area->thermal.list.reserveParticipationsCount();
-                break;
-            }
-        }
+        // Get the number of thermal reserveParticipations
+        pSize = area->thermal.list.reserveParticipationsCount();
         if (pSize)
         {
             AncestorType::pResults.resize(pSize);
diff --git a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByLTStorage.h b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByLTStorage.h
index bf7e14a412..9f2bec9ebc 100644
--- a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByLTStorage.h
+++ b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationByLTStorage.h
@@ -67,11 +67,8 @@ class ReserveParticipationByLTStorage
         pNbYearsParallel = study->maxNbYearsInParallel;
         pValuesForTheCurrentYear = new VCardType::IntermediateValuesBaseType[pNbYearsParallel];
 
-        pSize = 0;
-        for (int areaIndex = 0; areaIndex < study->areas.size(); areaIndex++)
-        {
-            pSize += study->areas[areaIndex]->hydro.reserveParticipationsCount();
-        }
+        // Get the number of LTStorage reserveParticipations
+        pSize = area->hydro.reserveParticipationsCount;
         if (pSize)
         {
             AncestorType::pResults.resize(pSize);
diff --git a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationBySTStorage.h b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationBySTStorage.h
index 14794d4929..343df31000 100644
--- a/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationBySTStorage.h
+++ b/src/solver/variable/include/antares/solver/variable/economy/reserveParticipationBySTStorage.h
@@ -105,16 +105,8 @@ class ReserveParticipationBySTStorage
         pNbYearsParallel = study->maxNbYearsInParallel;
         pValuesForTheCurrentYear = new VCardType::IntermediateValuesBaseType[pNbYearsParallel];
 
-        // Get the area
-        pSize = 0;
-        for (int areaIndex = 0; areaIndex < study->areas.size(); areaIndex++)
-        {
-            if (study->areas[areaIndex]->allCapacityReservations.size() > 0)
-            {
-                pSize = area->shortTermStorage.reserveParticipationsCount();
-                break;
-            }
-        }
+        // Get the number of STStorage reserveParticipations
+        pSize = area->shortTermStorage.reserveParticipationsCount();
         if (pSize)
         {
             AncestorType::pResults.resize(pSize);