diff --git a/simulator/src/simulator-ui.ts b/simulator/src/simulator-ui.ts
index 0f99360..fa60885 100644
--- a/simulator/src/simulator-ui.ts
+++ b/simulator/src/simulator-ui.ts
@@ -117,7 +117,7 @@ function initializeSimulator(container: HTMLElement) {
 		
 		batteryChargeGraph.viewport.setData({ x: 0, y: 0, width: 365*24, height: parameters.batteryCapacity });
 		batteryChargeGraph.viewport.setView({ x: marginLeft, y: batteryChargeGraph.height - marginBottom, width: batteryChargeGraph.width - (marginLeft+marginRight), height: -batteryChargeGraph.height+(marginTop+marginBottom) });
-		batteryChargeGraph.graph(simulationResult.batteryLevel, simulationResult.batteryLevel.map((x, idx) => x == 0 || idx == simulationResult.batteryLevel.length - 2 ? 1 : 0), [{className: ''}, {className: 'grid-recharge'}]);
+		batteryChargeGraph.graph(simulationResult.batteryLevel, simulationResult.gridCharge.map(x => x ? 1 : 0), [{className: ''}, {className: 'grid-recharge'}]);
 		let months = ['Jan', 'Fev', 'Mar', 'Avr', 'Mai', 'Jui', 'Jui', 'Aou', 'Sep', 'Oct', 'Nov', 'Dec'];
 		let monthWidth = 365*24/12
 		for(let month = 0; month < 12; ++month) {
diff --git a/simulator/src/simulator.ts b/simulator/src/simulator.ts
index 253979f..926e258 100644
--- a/simulator/src/simulator.ts
+++ b/simulator/src/simulator.ts
@@ -105,6 +105,7 @@ namespace Simulator {
 		vehicle: Vehicle;
 		
 		batteryLevel: number[]; // Remaining energy in the battery over time (one entry per hour), in Wh
+		gridCharge: boolean[]; // Indicates when the battery has to be charged from grid power (one entry per hour)
 		gridChargeCount: number;
 		cumulatedGridRechargeEnergy: number; // Cumulated energy added to the battery from the power grid, in Wh of battery charge (actual power grid consumption will be slightly higer due to losses)
 		cumulatedSolarRechargeEnergy: number; // Cumulated energy added to the battery from the solar panel, in Wh of battery charge (actual generated power is slightly higher due to losses)
@@ -127,6 +128,7 @@ namespace Simulator {
 			vehicle: vehicle,
 			
 			batteryLevel: [],
+			gridCharge: [],
 			gridChargeCount: 0,
 			cumulatedGridRechargeEnergy: 0,
 			cumulatedSolarRechargeEnergy: 0,
@@ -179,6 +181,7 @@ namespace Simulator {
 		for(let day = 0; day < 365; ++day) {
 			for(let hour = 0; hour < 24; ++hour) {
 				let hourIdx = day * 24 + hour;
+				result.gridCharge[hourIdx] = false;
 				
 				planning.getOuting(day % 7, hour, outing);
 				
@@ -202,12 +205,13 @@ namespace Simulator {
 					solarCharge -= remainingBatteryCharge - vehicle.batteryCapacity;
 					remainingBatteryCharge = vehicle.batteryCapacity;				
 				}
-				else if(remainingBatteryCharge <= lowBatteryThreshold || (day==364 && hour==23)) {
+				else if(remainingBatteryCharge <= lowBatteryThreshold) {
 					gridRechargeFrom = remainingBatteryChargeBeforeOuting;
 					
 					let rechargeEnergy = vehicle.batteryCapacity - remainingBatteryChargeBeforeOuting;
 					remainingBatteryCharge += rechargeEnergy;
 					result.cumulatedGridRechargeEnergy += rechargeEnergy;
+					result.gridCharge[hourIdx] = true;
 					result.gridChargeCount += 1;
 					
 					if(remainingBatteryCharge < 0)
@@ -222,6 +226,7 @@ namespace Simulator {
 						let secondRechargeEnergy = vehicle.batteryCapacity;
 						remainingBatteryCharge = vehicle.batteryCapacity;
 						result.cumulatedGridRechargeEnergy += secondRechargeEnergy;
+						result.gridCharge[hourIdx] = true;
 						result.gridChargeCount += 1;
 						gridRechargeFrom = 0;
 					}
@@ -231,6 +236,10 @@ namespace Simulator {
 				result.cumulatedSolarRechargeEnergy += solarCharge;
 				
 				result.batteryLevel[hourIdx] = gridRechargeFrom >= 0 ? gridRechargeFrom : remainingBatteryCharge;
+				if(hourIdx  > 0 && result.gridCharge[hourIdx - 1])
+				{
+					result.batteryLevel[hourIdx] = vehicle.batteryCapacity;
+				}
 			}
 		}