diff --git a/Zero_engine.alpx b/Zero_engine.alpx
index 42027ee..1cf78ba 100644
--- a/Zero_engine.alpx
+++ b/Zero_engine.alpx
@@ -1876,11 +1876,6 @@ EXCLUDE_PV => Use PV profile to preprocess gridnode profile to create a more acc
 				<Name><![CDATA[J_HeatingFunctionLibrary]]></Name>
 				<Folder>1762850578079</Folder>
 			</JavaClass>
-			<JavaClass>
-				<Id>1763570262548</Id>
-				<Name><![CDATA[J_GlobalParameters]]></Name>
-				<Folder>1764938574089</Folder>
-			</JavaClass>
 			<JavaClass>
 				<Id>1764337491572</Id>
 				<Name><![CDATA[I_ChargingRequest]]></Name>
@@ -1956,6 +1951,11 @@ EXCLUDE_PV => Use PV profile to preprocess gridnode profile to create a more acc
 				<Name><![CDATA[J_EAChargingSession]]></Name>
 				<Folder>1752677832758</Folder>
 			</JavaClass>
+			<JavaClass>
+				<Id>1770210283060</Id>
+				<Name><![CDATA[DoubleCompare]]></Name>
+				<Folder>1764938574089</Folder>
+			</JavaClass>
 		</JavaClasses>
 		<RequiredLibraryReference>
 			<LibraryName>com.anylogic.libraries.modules.markup_descriptors</LibraryName>
diff --git a/_alp/Agents/GridConnection/Code/Functions.java b/_alp/Agents/GridConnection/Code/Functions.java
index ce0840e..1972565 100644
--- a/_alp/Agents/GridConnection/Code/Functions.java
+++ b/_alp/Agents/GridConnection/Code/Functions.java
@@ -35,7 +35,7 @@
 
 double f_connectionMetering(J_TimeVariables timeVariables,boolean isRapidRun)
 {/*ALCODESTART::1660212665961*/
-if ( abs(fm_currentConsumptionFlows_kW.get(OL_EnergyCarriers.HEAT) - fm_currentProductionFlows_kW.get(OL_EnergyCarriers.HEAT)) > 0.1 && p_parentNodeHeat == null ) {
+if ( DoubleCompare.greaterThanZero(abs(fm_currentBalanceFlows_kW.get(OL_EnergyCarriers.HEAT))) && p_parentNodeHeat == null ) {
 	//if (p_BuildingThermalAsset == null || !p_BuildingThermalAsset.hasHeatBuffer()) {
 		traceln("heat consumption: %s kW", fm_currentConsumptionFlows_kW.get(OL_EnergyCarriers.HEAT));
 		traceln("heat production: %s kW", fm_currentProductionFlows_kW.get(OL_EnergyCarriers.HEAT));
diff --git a/_alp/Classes/Class.DoubleCompare.java b/_alp/Classes/Class.DoubleCompare.java
new file mode 100644
index 0000000..5bd74f7
--- /dev/null
+++ b/_alp/Classes/Class.DoubleCompare.java
@@ -0,0 +1,41 @@
+import java.lang.Math;
+/**
+ * DoubleCompare
+ */
+public class DoubleCompare {
+	private final static int FLOATINGPOINTPRECISION = 10;
+	private final static double EPSILON = 1e-10;
+	
+	public static boolean equalsZero(double d) {
+		//d = round(d);
+		//return d == 0.0;		
+		
+		return Math.abs(d) < EPSILON;
+	}
+	
+	public static boolean lessThanZero(double d) {
+		//d = round(d);
+		//return d < 0.0;		
+		return d < -EPSILON;
+	}
+	
+	public static boolean greaterThanZero(double d) {
+		//d = round(d);
+		//return d > 0.0;
+		return d > EPSILON;
+	}
+	
+	public static boolean equals(double a, double b) {
+		
+		//a = round(a);
+		//b = round(b);
+		//return a == b;
+		return Math.abs(a - b) < EPSILON;
+		
+	}
+	
+	//private static double round(double d) {
+		//return Math.floor(d * Math.pow(10, FLOATINGPOINTPRECISION) + 0.5) / Math.pow(10, FLOATINGPOINTPRECISION);
+	//}
+	
+}
\ No newline at end of file
diff --git a/_alp/Classes/Class.J_EABuilding.java b/_alp/Classes/Class.J_EABuilding.java
index 61b7fdc..61a3df5 100644
--- a/_alp/Classes/Class.J_EABuilding.java
+++ b/_alp/Classes/Class.J_EABuilding.java
@@ -73,10 +73,10 @@ public J_FlowPacket f_updateAllFlows(double powerFraction_fr, J_TimeVariables ti
 
 	@Override
 	public void operate(double powerFraction_fr, J_TimeVariables timeVariables) {
-		if (powerFraction_fr < 0) {
+		
+		if (DoubleCompare.lessThanZero(powerFraction_fr)) {
 			throw new RuntimeException("Cooling of the J_EABuilding is not yet supported.");
 		}
-		
 		double lossPower_kW = calculateLoss(); // Heat exchange with environment through convection
 		double solarHeating_kW = solarHeating(); // Heat influx from sunlight
 		this.energyUse_kW = lossPower_kW - solarHeating_kW;
diff --git a/_alp/Classes/Class.J_EAConversion.java b/_alp/Classes/Class.J_EAConversion.java
index ce4c630..018b15c 100644
--- a/_alp/Classes/Class.J_EAConversion.java
+++ b/_alp/Classes/Class.J_EAConversion.java
@@ -43,11 +43,10 @@ private void construct(I_AssetOwner owner, OL_EnergyAssetType energyAssetType, d
 
     @Override
     public J_FlowPacket f_updateAllFlows(double powerFraction_fr, J_TimeVariables timeVariables) {
-    	powerFraction_fr = roundToDecimal(powerFraction_fr, J_GlobalParameters.floatingPointPrecision);
-    	if(powerFraction_fr < 0) {
+    	if(DoubleCompare.lessThanZero(powerFraction_fr)) {
 			throw new RuntimeException("Impossible to operate conversion asset with negative powerfraction.");    		
     	}
-    	else if ( powerFraction_fr == 0 ) {
+    	else if ( DoubleCompare.equalsZero(powerFraction_fr) ) {
     		this.lastFlowsMap.clear();
     		this.lastEnergyUse_kW = 0;
          	J_FlowsMap flowsMapCopy = new J_FlowsMap();
diff --git a/_alp/Classes/Class.J_GlobalParameters.java b/_alp/Classes/Class.J_GlobalParameters.java
deleted file mode 100644
index b81fb54..0000000
--- a/_alp/Classes/Class.J_GlobalParameters.java
+++ /dev/null
@@ -1,7 +0,0 @@
-/**
- * J_GlobalParameters
- */	
-public abstract class J_GlobalParameters {
-	//public final static double floatingPointErrorMargin = 1e-15;
-	public final static int floatingPointPrecision = 10;
-}
\ No newline at end of file