diff --git a/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerBlock.java b/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerBlock.java
index 9684727..4b15282 100644
--- a/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerBlock.java
+++ b/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerBlock.java
@@ -65,4 +65,17 @@ public void appendHoverText(ItemStack stack, @Nullable BlockGetter worldIn, List
     public <T extends BlockEntity> BlockEntityTicker<T> getTicker(Level level, BlockState state, BlockEntityType<T> type) {
         return level.isClientSide ? null : createTickerHelper(type, Registry.pressurizerBlockEntity, PressurizerBlockEntity::tick);
     }
+
+    @Override
+    public boolean hasAnalogOutputSignal(BlockState state) {
+        return true;
+    }
+
+    @Override
+    public int getAnalogOutputSignal(BlockState state, Level world, BlockPos pos) {
+        var pipe = Utility.getBlockEntity(PressurizerBlockEntity.class, world, pos);
+        if (pipe == null)
+            return 0;
+        return (int) (pipe.getEnergy() / (float) pipe.getMaxEnergy() * 15);
+    }
 }
diff --git a/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerBlockEntity.java b/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerBlockEntity.java
index 17315cf..ff59b52 100644
--- a/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerBlockEntity.java
+++ b/src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerBlockEntity.java
@@ -134,9 +134,10 @@ public static void tick(Level level, BlockPos pos, BlockState state, Pressurizer
             }
         }
 
-        // send energy update
+        // send energy update and comparator output
         if (pressurizer.lastEnergy != pressurizer.storage.getEnergyStored() && pressurizer.level.getGameTime() % 10 == 0) {
             pressurizer.lastEnergy = pressurizer.storage.getEnergyStored();
+            level.updateNeighbourForOutputSignal(pos, state.getBlock());
             Utility.sendBlockEntityToClients(pressurizer);
         }
     }