diff --git a/common/buildcraft/builders/TileBuilder.java b/common/buildcraft/builders/TileBuilder.java
index d93b5fdf..2012df86 100644
--- a/common/buildcraft/builders/TileBuilder.java
+++ b/common/buildcraft/builders/TileBuilder.java
@@ -311,6 +311,10 @@ public class TileBuilder extends TileAbstractBuilder implements IHasWork, IFluid
 	@Deprecated
 	public BptBuilderBase instanciateBluePrintBuilder(int x, int y, int z, ForgeDirection o) {
 		BlueprintBase bpt = instanciateBlueprint();
+        if (bpt == null) {
+            return null;
+        }
+        
 		bpt = bpt.adjustToWorld(worldObj, x, y, z, o);
 
 		if (getStackInSlot(0).getItem() instanceof ItemBlueprintStandard) {
diff --git a/common/buildcraft/transport/pipes/PipePowerWood.java b/common/buildcraft/transport/pipes/PipePowerWood.java
index 223d4209..d407a87e 100644
--- a/common/buildcraft/transport/pipes/PipePowerWood.java
+++ b/common/buildcraft/transport/pipes/PipePowerWood.java
@@ -222,7 +222,7 @@ public class PipePowerWood extends Pipe<PipeTransportPower> implements IPowerRec
 	@Override
 	public int receiveEnergy(ForgeDirection from, int maxReceive,
 			boolean simulate) {
-		if (powerSources[from.ordinal()]) {
+		if (from.ordinal() < 6 && powerSources[from.ordinal()]) {
 			return battery.receiveEnergy(maxReceive, simulate);
 		} else {
 			return 0;