diff --git a/src/main/java/de/ellpeck/prettypipes/network/PipeNetwork.java b/src/main/java/de/ellpeck/prettypipes/network/PipeNetwork.java
index 6e354ca..b800811 100644
--- a/src/main/java/de/ellpeck/prettypipes/network/PipeNetwork.java
+++ b/src/main/java/de/ellpeck/prettypipes/network/PipeNetwork.java
@@ -55,6 +55,7 @@ public class PipeNetwork implements ICapabilitySerializable<CompoundNBT>, GraphL
     private final ListMultimap<BlockPos, IPipeItem> pipeItems = ArrayListMultimap.create();
     private final ListMultimap<BlockPos, NetworkLock> networkLocks = ArrayListMultimap.create();
     private final World world;
+    private final LazyOptional<PipeNetwork> lazyThis = LazyOptional.of(() -> this);
 
     public PipeNetwork(World world) {
         this.world = world;
@@ -66,7 +67,7 @@ public class PipeNetwork implements ICapabilitySerializable<CompoundNBT>, GraphL
     @Nonnull
     @Override
     public <T> LazyOptional<T> getCapability(@Nonnull Capability<T> cap, @Nullable Direction side) {
-        return cap == Registry.pipeNetworkCapability ? LazyOptional.of(() -> (T) this) : LazyOptional.empty();
+        return cap == Registry.pipeNetworkCapability ? this.lazyThis.cast() : LazyOptional.empty();
     }
 
     @Override
diff --git a/src/main/java/de/ellpeck/prettypipes/pipe/PipeTileEntity.java b/src/main/java/de/ellpeck/prettypipes/pipe/PipeTileEntity.java
index d8a0fcc..66038c0 100644
--- a/src/main/java/de/ellpeck/prettypipes/pipe/PipeTileEntity.java
+++ b/src/main/java/de/ellpeck/prettypipes/pipe/PipeTileEntity.java
@@ -73,6 +73,7 @@ public class PipeTileEntity extends TileEntity implements INamedContainerProvide
     protected List<IPipeItem> items;
     private int lastItemAmount;
     private int priority;
+    private final LazyOptional<PipeTileEntity> lazyThis = LazyOptional.of(() -> this);
 
     public PipeTileEntity() {
         this(Registry.pipeTileEntity);
@@ -351,6 +352,7 @@ public class PipeTileEntity extends TileEntity implements INamedContainerProvide
         PipeNetwork network = PipeNetwork.get(this.world);
         for (NetworkLock lock : this.craftIngredientRequests)
             network.resolveNetworkLock(lock);
+        this.lazyThis.invalidate();
     }
 
     @Override
@@ -374,7 +376,7 @@ public class PipeTileEntity extends TileEntity implements INamedContainerProvide
     @Override
     public <T> LazyOptional<T> getCapability(Capability<T> cap, Direction side) {
         if (cap == Registry.pipeConnectableCapability)
-            return LazyOptional.of(() -> (T) this);
+            return this.lazyThis.cast();
         return LazyOptional.empty();
     }
 
diff --git a/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerTileEntity.java b/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerTileEntity.java
index f516053..f70f532 100644
--- a/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerTileEntity.java
+++ b/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerTileEntity.java
@@ -36,6 +36,8 @@ import javax.annotation.Nullable;
 public class PressurizerTileEntity extends TileEntity implements INamedContainerProvider, ITickableTileEntity, IPipeConnectable {
 
     private final ModifiableEnergyStorage storage = new ModifiableEnergyStorage(64000, 512, 0);
+    private final LazyOptional<IEnergyStorage> lazyStorage = LazyOptional.of(() -> this.storage);
+    private final LazyOptional<IPipeConnectable> lazyThis = LazyOptional.of(() -> this);
     private int lastEnergy;
 
     public PressurizerTileEntity() {
@@ -100,14 +102,21 @@ public class PressurizerTileEntity extends TileEntity implements INamedContainer
     @Override
     public <T> LazyOptional<T> getCapability(Capability<T> cap, Direction side) {
         if (cap == CapabilityEnergy.ENERGY) {
-            return LazyOptional.of(() -> (T) this.storage);
+            return this.lazyStorage.cast();
         } else if (cap == Registry.pipeConnectableCapability) {
-            return LazyOptional.of(() -> (T) this);
+            return this.lazyThis.cast();
         } else {
             return LazyOptional.empty();
         }
     }
 
+    @Override
+    public void remove() {
+        super.remove();
+        this.lazyStorage.invalidate();
+        this.lazyThis.invalidate();
+    }
+
     @Override
     public void tick() {
         if (this.world.isRemote)
diff --git a/src/main/java/de/ellpeck/prettypipes/terminal/ItemTerminalTileEntity.java b/src/main/java/de/ellpeck/prettypipes/terminal/ItemTerminalTileEntity.java
index 3ef6214..ec3930d 100644
--- a/src/main/java/de/ellpeck/prettypipes/terminal/ItemTerminalTileEntity.java
+++ b/src/main/java/de/ellpeck/prettypipes/terminal/ItemTerminalTileEntity.java
@@ -60,6 +60,7 @@ public class ItemTerminalTileEntity extends TileEntity implements INamedContaine
     };
     protected Map<EquatableItemStack, NetworkItem> networkItems;
     private final Queue<NetworkLock> existingRequests = new LinkedList<>();
+    private final LazyOptional<IPipeConnectable> lazyThis = LazyOptional.of(() -> this);
 
     protected ItemTerminalTileEntity(TileEntityType<?> tileEntityTypeIn) {
         super(tileEntityTypeIn);
@@ -113,6 +114,7 @@ public class ItemTerminalTileEntity extends TileEntity implements INamedContaine
         PipeNetwork network = PipeNetwork.get(this.world);
         for (NetworkLock lock : this.existingRequests)
             network.resolveNetworkLock(lock);
+        this.lazyThis.invalidate();
     }
 
     public PipeTileEntity getConnectedPipe() {
@@ -217,7 +219,7 @@ public class ItemTerminalTileEntity extends TileEntity implements INamedContaine
     @Override
     public <T> LazyOptional<T> getCapability(Capability<T> cap, Direction side) {
         if (cap == Registry.pipeConnectableCapability)
-            return LazyOptional.of(() -> (T) this);
+            return this.lazyThis.cast();
         return LazyOptional.empty();
     }