Add BatterChargeModule class

Helios/Source/BatteryChargeModule.cs

+using System;
+namespace Helios.Source
+{
+	public class BatteryChargeModule
+	{
+
+        public double Efficiency { get; set; }
+        public double TotalOutput { get; set; }
+        public double PowerBalence { get; set; }
+
+        public BatteryChargeModule() { }
+
+		public BatteryChargeModule(double efficiency)
+        {
+            this.Efficiency = efficiency;
+        }
+
+        public double GetTotalOutput(double solarPanelEfficiency, double solarEnergy, double roofArea, double sunAngle)
+        {
+            double totalOutput;
+
+            totalOutput = solarPanelEfficiency * solarEnergy * roofArea * this.Efficiency * Math.Sin(sunAngle);
+
+            this.TotalOutput = totalOutput;
+
+            return totalOutput;
+        }
+
+        public double GetPowerBalence(double powerConsumption)
+        {
+            double powerBalence;
+
+            powerBalence = this.Efficiency * powerConsumption;
+
+            this.PowerBalence = powerBalence;
+
+            return powerBalence;
+        }
+	}
+}
+