A lot of things. Read changelog!

src/main/java/tombenpotter/emt/ModInformation.java

@@ -4,7 +4,7 @@ public class ModInformation {
 
 	public static final String name = "Electro-Magic Tools";
 	public static final String modid = "EMT";
-	public static final String version = "1.1.4";
+	public static final String version = "2.0.0Alpha";
 	public static final String texturePath = "electromagictools";
 	public static final String guiFactory = "tombenpotter.emt.client.gui.config.EMTGuiFactory";
 	public static final String clientProxy = "tombenpotter.emt.proxies.ClientProxy";

src/main/java/tombenpotter/emt/common/module/ic2/tile/generators/TileEntityAerGenerator.java

@@ -1,10 +1,12 @@
 package tombenpotter.emt.common.module.ic2.tile.generators;
 
 import thaumcraft.api.aspects.Aspect;
+import tombenpotter.emt.common.util.EssentiasOutputs;
 
 public class TileEntityAerGenerator extends TileEntityBaseGenerator {
 
-	public TileEntityAerGenerator() {
-		aspect = Aspect.AIR;
-	}
+    public TileEntityAerGenerator() {
+        aspect = Aspect.AIR;
+        EssentiasOutputs.outputs.get(aspect.getTag());
+    }
 }

src/main/java/tombenpotter/emt/common/module/ic2/tile/generators/TileEntityArborGenerator.java

@@ -13,10 +13,12 @@
 package tombenpotter.emt.common.module.ic2.tile.generators;
 
 import thaumcraft.api.aspects.Aspect;
+import tombenpotter.emt.common.util.EssentiasOutputs;
 
 public class TileEntityArborGenerator extends TileEntityBaseGenerator {
 
 	public TileEntityArborGenerator() {
 		aspect = Aspect.TREE;
+        EssentiasOutputs.outputs.get(aspect.getTag());
 	}
 }

src/main/java/tombenpotter/emt/common/module/ic2/tile/generators/TileEntityAuramGenerator.java

@@ -13,10 +13,12 @@
 package tombenpotter.emt.common.module.ic2.tile.generators;
 
 import thaumcraft.api.aspects.Aspect;
+import tombenpotter.emt.common.util.EssentiasOutputs;
 
 public class TileEntityAuramGenerator extends TileEntityBaseGenerator {
 
-	public TileEntityAuramGenerator() {
-		aspect = Aspect.AURA;
-	}
+    public TileEntityAuramGenerator() {
+        aspect = Aspect.AURA;
+        EssentiasOutputs.outputs.get(aspect.getTag());
+    }
 }

src/main/java/tombenpotter/emt/common/module/ic2/tile/generators/TileEntityBaseGenerator.java

@@ -7,7 +7,6 @@ import thaumcraft.api.aspects.Aspect;
 import thaumcraft.common.lib.events.EssentiaHandler;
 import tombenpotter.emt.common.module.ic2.tile.TileEntityEMT;
 import tombenpotter.emt.common.util.ConfigHandler;
-import tombenpotter.emt.common.util.EssentiasOutputs;
 
 public abstract class TileEntityBaseGenerator extends TileEntityEMT {
 
@@ -18,7 +17,7 @@ public abstract class TileEntityBaseGenerator extends TileEntityEMT {
 
 	public TileEntityBaseGenerator() {
 		waitTime = 30;
-		output = EssentiasOutputs.outputs.get(aspect.getTag());
+		output = 0;
 	}
 
 	@Override

src/main/java/tombenpotter/emt/common/module/ic2/tile/generators/TileEntityIgnisGenerator.java

@@ -13,10 +13,12 @@
 package tombenpotter.emt.common.module.ic2.tile.generators;
 
 import thaumcraft.api.aspects.Aspect;
+import tombenpotter.emt.common.util.EssentiasOutputs;
 
 public class TileEntityIgnisGenerator extends TileEntityBaseGenerator {
 
 	public TileEntityIgnisGenerator() {
 		aspect = Aspect.FIRE;
+        EssentiasOutputs.outputs.get(aspect.getTag());
 	}
 }

src/main/java/tombenpotter/emt/common/module/ic2/tile/generators/TileEntityPotentiaGenerator.java

@@ -13,10 +13,12 @@
 package tombenpotter.emt.common.module.ic2.tile.generators;
 
 import thaumcraft.api.aspects.Aspect;
+import tombenpotter.emt.common.util.EssentiasOutputs;
 
 public class TileEntityPotentiaGenerator extends TileEntityBaseGenerator {
 
-	public TileEntityPotentiaGenerator() {
-		aspect = Aspect.ENERGY;
-	}
+    public TileEntityPotentiaGenerator() {
+        aspect = Aspect.ENERGY;
+        EssentiasOutputs.outputs.get(aspect.getTag());
+    }
 }