diff --git a/core/src/io/anuke/mindustry/world/blocks/power/PowerGenerator.java b/core/src/io/anuke/mindustry/world/blocks/power/PowerGenerator.java
index 84b2b6c841..d165925c07 100644
--- a/core/src/io/anuke/mindustry/world/blocks/power/PowerGenerator.java
+++ b/core/src/io/anuke/mindustry/world/blocks/power/PowerGenerator.java
@@ -15,13 +15,8 @@ import java.io.DataOutput;
 import java.io.IOException;
 
 public class PowerGenerator extends PowerDistributor{
-    /** The amount of power produced per tick. */
+    /** The amount of power produced per tick in case of an efficiency of 1.0, which currently represents 200%. */
     protected float powerProduction;
-    /** The maximum possible efficiency for this generator. Supply values larger than 1.0f if more than 100% is possible.
-     *  This could be the case when e.g. an item with 100% flammability is the reference point, but a more effective liquid
-     *  can be supplied as an alternative.
-     */
-    protected float maxEfficiency = 1.0f;
     public BlockStat generationType = BlockStat.basePowerGeneration;
 
     public PowerGenerator(String name){
@@ -39,8 +34,9 @@ public class PowerGenerator extends PowerDistributor{
 
     @Override
     public float getPowerProduction(Tile tile){
-        // Multiply all efficiencies by two since 0.5 = 100% efficiency
-        return powerProduction * tile.<GeneratorEntity>entity().productionEfficiency * 2.0f;
+        // While 0.5 efficiency currently reflects 100%, we do not need to multiply by any factor since powerProduction states the
+        // power which would be produced at 1.0 efficiency
+        return powerProduction * tile.<GeneratorEntity>entity().productionEfficiency;
     }
 
     @Override
@@ -57,12 +53,13 @@ public class PowerGenerator extends PowerDistributor{
     public void setBars(){
         super.setBars();
         if(hasPower){
-            bars.add(new BlockBar(BarType.power, true, tile -> tile.<GeneratorEntity>entity().productionEfficiency / maxEfficiency));
+            bars.add(new BlockBar(BarType.power, true, tile -> tile.<GeneratorEntity>entity().productionEfficiency));
         }
     }
 
     public static class GeneratorEntity extends TileEntity{
         public float generateTime;
+        /** The efficiency of the producer. Currently, an efficiency of 0.5 means 100% */
         public float productionEfficiency = 0.0f;
 
         @Override
diff --git a/core/src/io/anuke/mindustry/world/consumers/ConsumePower.java b/core/src/io/anuke/mindustry/world/consumers/ConsumePower.java
index d4d9a3dffb..28d3d4ab66 100644
--- a/core/src/io/anuke/mindustry/world/consumers/ConsumePower.java
+++ b/core/src/io/anuke/mindustry/world/consumers/ConsumePower.java
@@ -1,5 +1,6 @@
 package io.anuke.mindustry.world.consumers;
 
+import com.badlogic.gdx.math.MathUtils;
 import io.anuke.ucore.scene.ui.layout.Table;
 
 import io.anuke.mindustry.entities.TileEntity;
@@ -86,10 +87,12 @@ public class ConsumePower extends Consume{
      * @return The amount of power which is requested per tick.
      */
     public float requestedPower(Block block, TileEntity entity){
-        // TODO Make the block not consume power on the following conditions, either here or in PowerGraph:
-        //      - Other consumers are not valid, e.g. additional input items/liquids are missing
-        //      - Buffer is full
-        return powerPerTick;
+        if(isBuffered){
+            // Stop requesting power once the buffer is full.
+            return MathUtils.isEqual(entity.power.satisfaction, 1.0f) ? 0.0f : powerPerTick;
+        }else{
+            return powerPerTick;
+        }
     }
 
 
diff --git a/tests/src/test/java/power/PowerTestFixture.java b/tests/src/test/java/power/PowerTestFixture.java
index 34d88bd62e..5728f6bc8e 100644
--- a/tests/src/test/java/power/PowerTestFixture.java
+++ b/tests/src/test/java/power/PowerTestFixture.java
@@ -42,8 +42,9 @@ public class PowerTestFixture{
     }
 
     protected static PowerGenerator createFakeProducerBlock(float producedPower){
+        // Multiply produced power by 2 since production efficiency is defined to be 0.5 = 100%
         return new PowerGenerator("fakegen"){{
-            powerProduction = producedPower;
+            powerProduction = producedPower * 2.0f;
         }};
     }
 
diff --git a/tests/src/test/java/power/PowerTests.java b/tests/src/test/java/power/PowerTests.java
index e8167a4aec..a79089ab91 100644
--- a/tests/src/test/java/power/PowerTests.java
+++ b/tests/src/test/java/power/PowerTests.java
@@ -98,7 +98,13 @@ public class PowerTests extends PowerTestFixture{
             powerGraph.add(bufferedConsumerTile);
 
             assertEquals(producedPower * FakeThreadHandler.fakeDelta, powerGraph.getPowerProduced(), MathUtils.FLOAT_ROUNDING_ERROR, parameterDescription + ": Produced power did not match");
-            assertEquals(Math.min(maxBuffer, powerConsumedPerTick * FakeThreadHandler.fakeDelta), powerGraph.getPowerNeeded(), MathUtils.FLOAT_ROUNDING_ERROR, parameterDescription + ": ConsumedPower did not match");
+            float expectedPowerUsage;
+            if(initialSatisfaction == 1.0f){
+                expectedPowerUsage = 0f;
+            }else{
+                expectedPowerUsage = Math.min(maxBuffer, powerConsumedPerTick * FakeThreadHandler.fakeDelta);
+            }
+            assertEquals(expectedPowerUsage, powerGraph.getPowerNeeded(), MathUtils.FLOAT_ROUNDING_ERROR, parameterDescription + ": Consumed power did not match");
 
             // Update and check for the expected power satisfaction of the consumer
             powerGraph.update();
@@ -128,7 +134,7 @@ public class PowerTests extends PowerTestFixture{
 
             if(producedPower > 0.0f){
                 Tile producerTile = createFakeTile(0, 0, createFakeProducerBlock(producedPower));
-                producerTile.<PowerGenerator.GeneratorEntity>entity().productionEfficiency = 0.5f; // Currently, 0.5f = 100%
+                producerTile.<PowerGenerator.GeneratorEntity>entity().productionEfficiency = 0.5f;
                 powerGraph.add(producerTile);
             }
             Tile directConsumerTile = null;