diff --git a/VectoCore/VectoCore/Models/Simulation/Data/ModalResultField.cs b/VectoCore/VectoCore/Models/Simulation/Data/ModalResultField.cs
index 4f07a71129cab22df0bbf67b6270fb204dad3762..bd64deffcbce45f302914033871229458b072be3 100644
--- a/VectoCore/VectoCore/Models/Simulation/Data/ModalResultField.cs
+++ b/VectoCore/VectoCore/Models/Simulation/Data/ModalResultField.cs
@@ -433,9 +433,7 @@ namespace TUGraz.VectoCore.Models.Simulation.Data
 		[ModalResultField(typeof(SI), caption: "U_reess_terminal [V]")] U_reess_terminal,
 		[ModalResultField(typeof(SI), caption: "U_0_reess [V]")] U0_reess,
 		[ModalResultField(typeof(SI), caption: "I_reess [A]")] I_reess,
-		
-		[ModalResultField(typeof(SI), caption: "E_reess [kWh]", outputFactor: 1/3600e3)] E_RESS,
-    }
+	}
 
 	[AttributeUsage(AttributeTargets.Field)]
 	public class ModalResultFieldAttribute : Attribute
diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Impl/Battery.cs b/VectoCore/VectoCore/Models/SimulationComponent/Impl/Battery.cs
index 6c97bcff2cc269ee8ca54c63bda755dd9499bf41..98c95a97d4103d5d78fc822c78735e623c5faf9d 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Impl/Battery.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Impl/Battery.cs
@@ -157,9 +157,6 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
 			container[ModalResultField.P_reess_loss] = CurrentState.BatteryLoss;
 			container[ModalResultField.P_reess_charge_max] = CurrentState.MaxChargePower;
 			container[ModalResultField.P_reess_discharge_max] = CurrentState.MaxDischargePower;
-
-			container[ModalResultField.E_RESS] = CurrentState.StateOfCharge * cellVoltage * ModelData.Capacity;
-
 		}
 
 		protected override void DoCommitSimulationStep(Second time, Second simulationInterval)
diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Impl/SuperCap.cs b/VectoCore/VectoCore/Models/SimulationComponent/Impl/SuperCap.cs
index ab26393427fde4811816a5f9bdb222ce3daf94f5..621be6e2a44d38fe28677393286b092a6f5f1f6f 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Impl/SuperCap.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Impl/SuperCap.cs
@@ -191,8 +191,6 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
 			container[ModalResultField.P_reess_loss] = CurrentState.InternalLoss;
 			container[ModalResultField.P_reess_charge_max] = CurrentState.MaxChargePower;
 			container[ModalResultField.P_reess_discharge_max] = CurrentState.MaxDischargePower;
-
-			container[ModalResultField.E_RESS] = CurrentState.Charge * CurrentState.Charge / ModelData.Capacity / 2.0;
 		}
 
 		protected override void DoCommitSimulationStep(Second time, Second simulationInterval)
diff --git a/VectoCore/VectoCore/OutputData/IModalDataContainer.cs b/VectoCore/VectoCore/OutputData/IModalDataContainer.cs
index 8659e62b7a410bd1ab5deac9267c314b0e192554..2f40b5daf46e3205956588d7466a891f0acc42b4 100644
--- a/VectoCore/VectoCore/OutputData/IModalDataContainer.cs
+++ b/VectoCore/VectoCore/OutputData/IModalDataContainer.cs
@@ -141,8 +141,6 @@ namespace TUGraz.VectoCore.OutputData
 		double BatteryStartSoC();
 		double REESSEndSoC();
 		WattSecond REESSLoss();
-		WattSecond REESSEnergyEnd();
-
 	}
 
 	public static class ModalDataContainerExtensions
diff --git a/VectoCore/VectoCore/OutputData/ModalDataContainer.cs b/VectoCore/VectoCore/OutputData/ModalDataContainer.cs
index 22131e5438c5a34917e4922c4c4d3ef1d78f8488..8288dae00fd355e5786325498b7c6fcb5b2f4f46 100644
--- a/VectoCore/VectoCore/OutputData/ModalDataContainer.cs
+++ b/VectoCore/VectoCore/OutputData/ModalDataContainer.cs
@@ -504,12 +504,6 @@ namespace TUGraz.VectoCore.OutputData
 			return TimeIntegral<WattSecond>(ModalResultField.P_reess_loss);
 		}
 
-		public WattSecond REESSEnergyEnd()
-		{
-			return Data.AsEnumerable().Cast<DataRow>().Last().Field<SI>(ModalResultField.E_RESS.GetName())
-				.Cast<WattSecond>();
-		}
-
 		public void CalculateAggregateValues()
 		{
 			var duration = Duration;
@@ -714,7 +708,6 @@ namespace TUGraz.VectoCore.OutputData
 					ModalResultField.U_reess_terminal,
 					ModalResultField.U0_reess,
 					ModalResultField.I_reess,
-					ModalResultField.E_RESS
 				}.Select(x => x.GetName()));
 				foreach (var em in ElectricMotors.OrderBy(x => x).Reverse()) {
 					dataColumns.AddRange(_electricMotorColumns.Select(emCol =>
diff --git a/VectoCore/VectoCore/OutputData/SummaryDataContainer.cs b/VectoCore/VectoCore/OutputData/SummaryDataContainer.cs
index 070f5628483290d46ff8f5c4b1d320aa96275bf1..e5f8add557861975e1bece57d1fbb0f807bee965 100644
--- a/VectoCore/VectoCore/OutputData/SummaryDataContainer.cs
+++ b/VectoCore/VectoCore/OutputData/SummaryDataContainer.cs
@@ -786,25 +786,15 @@ namespace TUGraz.VectoCore.OutputData
 			if (runData.BatteryData != null) {
 				row[Fields.REESS_StartSoC] = runData.BatteryData.InitialSoC * 100; 
 				row[Fields.REESS_EndSoC] = modData.REESSEndSoC();
-				var cellVoltage = runData.BatteryData.SOCMap.Lookup(runData.BatteryData.InitialSoC);
-				row[Fields.REESS_DeltaSoC] =
-					(modData.REESSEnergyEnd() - 
-					(runData.BatteryData.InitialSoC * runData.BatteryData.Capacity * cellVoltage).Cast<WattSecond>()).ConvertToKiloWattHour();
+				row[Fields.REESS_DeltaSoC] = modData.TimeIntegral<WattSecond>(ModalResultField.P_reess_int.GetName())
+					.ConvertToKiloWattHour();
 
-				
 			}
 			if (runData.SuperCapData != null) {
 				row[Fields.REESS_StartSoC] = runData.SuperCapData.InitialSoC * 100;
 				row[Fields.REESS_EndSoC] = modData.REESSEndSoC();
-				var initialCharge = runData.SuperCapData.Capacity *
-									((runData.SuperCapData.MaxVoltage - runData.SuperCapData.MinVoltage) *
-									runData.SuperCapData.InitialSoC +
-									runData.SuperCapData.MinVoltage);
-				row[Fields.REESS_DeltaSoC] =
-					(modData.REESSEnergyEnd() -
-					(initialCharge * initialCharge / runData.SuperCapData.Capacity / 2.0).Cast<WattSecond>()).ConvertToKiloWattHour();
-
-
+				row[Fields.REESS_DeltaSoC] = modData.TimeIntegral<WattSecond>(ModalResultField.P_reess_int.GetName())
+					.ConvertToKiloWattHour();
 			}
 		}
 
@@ -1338,10 +1328,10 @@ namespace TUGraz.VectoCore.OutputData
 			public const string E_EM_LOSS_FORMAT = "E_EM_{0}_loss [kWh]";
 
 
+			public const string REESS_CAPACITY = "REESS Capacity";
 			public const string REESS_StartSoC = "REESS Start SoC [%]";
 			public const string REESS_EndSoC = "REESS End SoC [%]";
-			public const string REESS_DeltaSoC = "REESS Delta SoC [kWh]";
-			public const string REESS_CAPACITY = "REESS Capacity";
+			public const string REESS_DeltaSoC = "ΔE_REESS [kWh]";
 
 			public const string E_REESS_LOSS = "E_REESS_loss [kWh]";
 			public const string E_REESS_T_chg = "E_REESS_T_chg [kWh]";