diff --git a/build.gradle b/build.gradle
index 8f0900bc4..bd955edfd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -75,6 +75,7 @@ configurations {
 }
 
 dependencies {
+    provided "appeng:appliedenergistics2:${config.ae2.version}:dev"
     provided "codechicken:CodeChickenLib:${config.minecraft.version}-${config.ccl.version}:dev"
     provided "codechicken:ForgeMultipart:${config.minecraft.version}-${config.fmp.version}:dev"
     provided "codechicken:NotEnoughItems:${config.minecraft.version}-${config.nei.version}:dev"
diff --git a/build.properties b/build.properties
index d0bbb9d50..bfc339fc2 100644
--- a/build.properties
+++ b/build.properties
@@ -1,11 +1,12 @@
 minecraft.version=1.7.10
-forge.version=10.13.0.1180
+forge.version=10.13.0.1208
 oc.version=1.3.5
 oc.subversion=dev
-ccl.version=1.1.1.95
-fmp.version=1.1.0.299
-nei.version=1.0.3.51
+ccl.version=1.1.1.104
+fmp.version=1.1.0.307
+nei.version=1.0.3.56
 wrcbe.version=1.4.0.7
+ae2.version=+
 waila.version=1.5.4a
 bc.version=6.0.18
 ic2.version=2.2.+
diff --git a/src/main/resources/application.conf b/src/main/resources/application.conf
index 817aa108f..96ad84362 100644
--- a/src/main/resources/application.conf
+++ b/src/main/resources/application.conf
@@ -616,6 +616,13 @@ opencomputers {
           # each point of complexity.
           robotAssemblyComplexity: 10000
 
+          # The base energy cost for assembling a tablet.
+          tabletAssemblyBase: 20000
+
+          # The additional amount of energy required to assemble a tablet for
+          # each point of complexity.
+          tabletAssemblyComplexity: 5000
+
           # The amount of energy it takes to extract one ingredient from an
           # item that is being disassembled. For example, if an item that was
           # crafted from three other items gets disassembled, a total of 15000
@@ -635,13 +642,14 @@ opencomputers {
 
       # Power values for different power systems.
       value {
+          AppliedEnergistics2: 100.0
           BuildCraft: 500.0
           Factorization: 6.5
           Galacticraft: 24.0
           IndustrialCraft2: 200.0
           Mekanism: 555.55555
           RedstoneFlux: 35.0
-          UniversalElectricity: 1.0
+          UniversalElectricity: 1750.0
       }
   }
 
diff --git a/src/main/resources/assets/opencomputers/recipes/default.recipes b/src/main/resources/assets/opencomputers/recipes/default.recipes
index 264eafb81..11f4194dd 100644
--- a/src/main/resources/assets/opencomputers/recipes/default.recipes
+++ b/src/main/resources/assets/opencomputers/recipes/default.recipes
@@ -11,6 +11,11 @@ terminal {
           ["oc:circuitChip3", "oc:screen2", "oc:wlanCard"]
           [nuggetIron, "oc:keyboard", nuggetIron]]
 }
+tabletCase {
+  input: [[ingotGold, button, ingotGold]
+          ["oc:componentBus1", "oc:screen2", "oc:circuitChip3"]
+          [ingotGold, "oc:materialCircuitBoardPrinted", ingotGold]]
+}
 
 server1 {
   input: [[obsidian, "oc:ram4", obsidian]
diff --git a/src/main/scala/li/cil/oc/Items.scala b/src/main/scala/li/cil/oc/Items.scala
index c8ed1f3e4..b1a9f2cf0 100644
--- a/src/main/scala/li/cil/oc/Items.scala
+++ b/src/main/scala/li/cil/oc/Items.scala
@@ -238,10 +238,8 @@ object Items extends ItemAPI {
     Recipes.addItem(new item.ComponentBus(multi, Tier.Three), "componentBus3", "oc:componentBus3")
     registerItem(new item.DebugCard(multi), "debugCard")
 
-    // 1.3.?
-    registerItem(new item.TabletCase(multi), "tabletCase")
-
     // 1.3.5
+    Recipes.addItem(new item.TabletCase(multi), "tabletCase", "oc:tabletCase")
     Recipes.addItem(new item.UpgradePiston(multi), "pistonUpgrade", "oc:pistonUpgrade")
   }
 }
\ No newline at end of file
diff --git a/src/main/scala/li/cil/oc/Settings.scala b/src/main/scala/li/cil/oc/Settings.scala
index aa0c5923c..267a48813 100644
--- a/src/main/scala/li/cil/oc/Settings.scala
+++ b/src/main/scala/li/cil/oc/Settings.scala
@@ -161,11 +161,14 @@ class Settings(config: Config) {
   val geolyzerScanCost = config.getDouble("power.cost.geolyzerScan") max 0
   val robotBaseCost = config.getDouble("power.cost.robotAssemblyBase") max 0
   val robotComplexityCost = config.getDouble("power.cost.robotAssemblyComplexity") max 0
+  val tabletBaseCost = config.getDouble("power.cost.tabletAssemblyBase") max 0
+  val tabletComplexityCost = config.getDouble("power.cost.tabletAssemblyComplexity") max 0
   val disassemblerItemCost = config.getDouble("power.cost.disassemblerPerItem") max 0
   val chunkloaderCost = config.getDouble("power.cost.chunkloaderCost") max 0
   val pistonCost = config.getDouble("power.cost.pistonPush") max 0
 
   // power.value
+  private val valueAppliedEnergistics2 = config.getDouble("power.value.AppliedEnergistics2")
   private val valueBuildCraft = config.getDouble("power.value.BuildCraft")
   private val valueFactorization = config.getDouble("power.value.Factorization")
   private val valueGalacticraft = config.getDouble("power.value.Galacticraft")
@@ -176,6 +179,7 @@ class Settings(config: Config) {
 
   private val valueInternal = valueBuildCraft
 
+  val ratioAppliedEnergistics2 = valueAppliedEnergistics2 / valueInternal
   val ratioBuildCraft = valueBuildCraft / valueInternal
   val ratioFactorization = valueFactorization / valueInternal
   val ratioGalacticraft = valueGalacticraft / valueInternal
diff --git a/src/main/scala/li/cil/oc/common/EventHandler.scala b/src/main/scala/li/cil/oc/common/EventHandler.scala
index 71f195d2a..7af3b1641 100644
--- a/src/main/scala/li/cil/oc/common/EventHandler.scala
+++ b/src/main/scala/li/cil/oc/common/EventHandler.scala
@@ -20,7 +20,9 @@ import net.minecraft.item.ItemStack
 import net.minecraft.server.MinecraftServer
 import net.minecraft.tileentity.TileEntity
 import net.minecraftforge.common.MinecraftForge
+import net.minecraftforge.common.util.ForgeDirection
 import net.minecraftforge.event.world.WorldEvent
+import universalelectricity.api.core.grid.electric.IEnergyNode
 
 import scala.collection.mutable
 import scala.concurrent.ExecutionContext.Implicits.global
@@ -42,6 +44,15 @@ object EventHandler {
     }
   }
 
+  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
+  def scheduleAE2Add(tileEntity: power.AppliedEnergistics2) {
+    if (SideTracker.isServer) pending.synchronized {
+      pending += (() => if (!tileEntity.isInvalid) {
+        tileEntity.getGridNode(ForgeDirection.UNKNOWN).updateState()
+      })
+    }
+  }
+
   @Optional.Method(modid = Mods.IDs.IndustrialCraft2)
   def scheduleIC2Add(tileEntity: power.IndustrialCraft2Experimental) {
     if (SideTracker.isServer) pending.synchronized {
@@ -62,6 +73,15 @@ object EventHandler {
     }
   }
 
+  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
+  def scheduleUEAdd(tileEntity: power.UniversalElectricity) {
+    if (SideTracker.isServer) pending.synchronized {
+      pending += (() => if (!tileEntity.isInvalid) {
+        tileEntity.getNode(classOf[IEnergyNode], ForgeDirection.UNKNOWN).reconstruct()
+      })
+    }
+  }
+
   def scheduleWirelessRedstone(rs: server.component.RedstoneWireless) {
     if (SideTracker.isServer) pending.synchronized {
       pending += (() => if (!rs.owner.isInvalid) {
diff --git a/src/main/scala/li/cil/oc/common/SaveHandler.scala b/src/main/scala/li/cil/oc/common/SaveHandler.scala
index 70cb7d4f0..0e5cd9608 100644
--- a/src/main/scala/li/cil/oc/common/SaveHandler.scala
+++ b/src/main/scala/li/cil/oc/common/SaveHandler.scala
@@ -40,7 +40,7 @@ object SaveHandler {
   }
 
   def scheduleSave(host: EnvironmentHost, nbt: NBTTagCompound, name: String, save: NBTTagCompound => Unit) {
-    scheduleSave(host.world, host.xPosition.toInt, host.zPosition, nbt, name, writeNBT(save))
+    scheduleSave(host.world, math.floor(host.xPosition).toInt, math.floor(host.zPosition).toInt, nbt, name, writeNBT(save))
   }
 
   def scheduleSave(world: World, x: Double, z: Double, nbt: NBTTagCompound, name: String, data: Array[Byte]) {
diff --git a/src/main/scala/li/cil/oc/common/asm/ClassTransformer.scala b/src/main/scala/li/cil/oc/common/asm/ClassTransformer.scala
index 6a17ab2c2..0417bc561 100644
--- a/src/main/scala/li/cil/oc/common/asm/ClassTransformer.scala
+++ b/src/main/scala/li/cil/oc/common/asm/ClassTransformer.scala
@@ -18,14 +18,15 @@ class ClassTransformer extends IClassTransformer {
   private val log = LogManager.getLogger("OpenComputers")
 
   private lazy val powerTypes = Map[Mod, Array[String]](
+    Mods.AppliedEnergistics2 -> Array("appeng/api/networking/IGridHost"),
     Mods.BuildCraftPower -> Array("buildcraft/api/power/IPowerReceptor"),
     Mods.Factorization -> Array("factorization/api/IChargeConductor"),
     Mods.Galacticraft -> Array("micdoodle8/mods/galacticraft/api/power/IEnergyHandlerGC"),
     Mods.IndustrialCraft2 -> Array("ic2/api/energy/tile/IEnergySink"),
     Mods.IndustrialCraft2Classic -> Array("ic2classic/api/energy/tile/IEnergySink"),
     Mods.Mekanism -> Array("mekanism/api/energy/IStrictEnergyAcceptor"),
-    Mods.RedstoneFlux -> Array("cofh/api/energy/IEnergyHandler")
-//    Mods.UniversalElectricity -> Array("universalelectricity/api/core/grid/INodeProvider", "universalelectricity/api/core/grid/electric/IEnergyContainer")
+    Mods.RedstoneFlux -> Array("cofh/api/energy/IEnergyHandler"),
+    Mods.UniversalElectricity -> Array("universalelectricity/api/core/grid/INodeProvider")
   )
 
   override def transform(name: String, transformedName: String, basicClass: Array[Byte]): Array[Byte] = {
diff --git a/src/main/scala/li/cil/oc/common/block/Assembler.scala b/src/main/scala/li/cil/oc/common/block/Assembler.scala
index ae947e4d3..03c4eed62 100644
--- a/src/main/scala/li/cil/oc/common/block/Assembler.scala
+++ b/src/main/scala/li/cil/oc/common/block/Assembler.scala
@@ -8,7 +8,7 @@ import net.minecraft.entity.player.EntityPlayer
 import net.minecraft.world.{IBlockAccess, World}
 import net.minecraftforge.common.util.ForgeDirection
 
-class Assembler extends SimpleBlock with SpecialBlock {
+class Assembler extends SimpleBlock with traits.SpecialBlock with traits.PowerAcceptor {
   setLightLevel(0.34f)
 
   override protected def customTextures = Array(
diff --git a/src/main/scala/li/cil/oc/common/block/Cable.scala b/src/main/scala/li/cil/oc/common/block/Cable.scala
index 9bf628cfc..6dfd6bfaa 100644
--- a/src/main/scala/li/cil/oc/common/block/Cable.scala
+++ b/src/main/scala/li/cil/oc/common/block/Cable.scala
@@ -18,7 +18,7 @@ import net.minecraft.util.AxisAlignedBB
 import net.minecraft.world.{IBlockAccess, World}
 import net.minecraftforge.common.util.ForgeDirection
 
-class Cable extends SimpleBlock with SpecialBlock {
+class Cable extends SimpleBlock with traits.SpecialBlock {
   setLightOpacity(0)
 
   // For Immibis Microblock support.
diff --git a/src/main/scala/li/cil/oc/common/block/Case.scala b/src/main/scala/li/cil/oc/common/block/Case.scala
index 178fb0ef3..7a20227ac 100644
--- a/src/main/scala/li/cil/oc/common/block/Case.scala
+++ b/src/main/scala/li/cil/oc/common/block/Case.scala
@@ -14,7 +14,7 @@ import net.minecraft.util.IIcon
 import net.minecraft.world.{IBlockAccess, World}
 import net.minecraftforge.common.util.ForgeDirection
 
-class Case(val tier: Int) extends RedstoneAware {
+class Case(val tier: Int) extends RedstoneAware with traits.PowerAcceptor {
   private val iconsOn = new Array[IIcon](6)
 
   // ----------------------------------------------------------------------- //
diff --git a/src/main/scala/li/cil/oc/common/block/Disassembler.scala b/src/main/scala/li/cil/oc/common/block/Disassembler.scala
index 0236e169c..f653c3a26 100644
--- a/src/main/scala/li/cil/oc/common/block/Disassembler.scala
+++ b/src/main/scala/li/cil/oc/common/block/Disassembler.scala
@@ -10,7 +10,7 @@ import net.minecraft.item.ItemStack
 import net.minecraft.world.World
 import net.minecraftforge.common.util.ForgeDirection
 
-class Disassembler extends SimpleBlock {
+class Disassembler extends SimpleBlock with traits.PowerAcceptor {
   override protected def customTextures = Array(
     None,
     Some("DisassemblerTop"),
diff --git a/src/main/scala/li/cil/oc/common/block/Hologram.scala b/src/main/scala/li/cil/oc/common/block/Hologram.scala
index 66b01c079..ca5816de4 100644
--- a/src/main/scala/li/cil/oc/common/block/Hologram.scala
+++ b/src/main/scala/li/cil/oc/common/block/Hologram.scala
@@ -10,7 +10,7 @@ import net.minecraft.item.{EnumRarity, ItemStack}
 import net.minecraft.world.{IBlockAccess, World}
 import net.minecraftforge.common.util.ForgeDirection
 
-class Hologram(val tier: Int) extends SimpleBlock with SpecialBlock {
+class Hologram(val tier: Int) extends SimpleBlock with traits.SpecialBlock {
   setLightLevel(1)
   setBlockBounds(0, 0, 0, 1, 0.5f, 1)
 
diff --git a/src/main/scala/li/cil/oc/common/block/Keyboard.scala b/src/main/scala/li/cil/oc/common/block/Keyboard.scala
index d27ad725f..6a0df766d 100644
--- a/src/main/scala/li/cil/oc/common/block/Keyboard.scala
+++ b/src/main/scala/li/cil/oc/common/block/Keyboard.scala
@@ -10,7 +10,7 @@ import net.minecraft.world.{IBlockAccess, World}
 import net.minecraftforge.common.util.ForgeDirection
 import org.lwjgl.opengl.GL11
 
-class Keyboard extends SimpleBlock with SpecialBlock {
+class Keyboard extends SimpleBlock with traits.SpecialBlock {
   setLightOpacity(0)
 
   // For Immibis Microblock support.
diff --git a/src/main/scala/li/cil/oc/common/block/PowerConverter.scala b/src/main/scala/li/cil/oc/common/block/PowerConverter.scala
index 0442211d7..679f90828 100644
--- a/src/main/scala/li/cil/oc/common/block/PowerConverter.scala
+++ b/src/main/scala/li/cil/oc/common/block/PowerConverter.scala
@@ -11,7 +11,7 @@ import net.minecraft.entity.player.EntityPlayer
 import net.minecraft.item.ItemStack
 import net.minecraft.world.World
 
-class PowerConverter extends SimpleBlock {
+class PowerConverter extends SimpleBlock with traits.PowerAcceptor {
   showInItemList = !Settings.get.ignorePower
 
   private val formatter = new DecimalFormat("#.#")
diff --git a/src/main/scala/li/cil/oc/common/block/RedstoneAware.scala b/src/main/scala/li/cil/oc/common/block/RedstoneAware.scala
index 0ad299da8..dfed4c6e8 100644
--- a/src/main/scala/li/cil/oc/common/block/RedstoneAware.scala
+++ b/src/main/scala/li/cil/oc/common/block/RedstoneAware.scala
@@ -1,14 +1,13 @@
 package li.cil.oc.common.block
 
 import cpw.mods.fml.common.Optional
-import li.cil.oc.common.tileentity.traits
-import li.cil.oc.common.tileentity.traits.BundledRedstoneAware
+import li.cil.oc.common.tileentity
 import li.cil.oc.util.mods.Mods
 import net.minecraft.block.Block
 import net.minecraft.world.{IBlockAccess, World}
 import net.minecraftforge.common.util.ForgeDirection
-import powercrystals.minefactoryreloaded.api.rednet.{IRedNetNetworkContainer, IRedNetOmniNode}
 import powercrystals.minefactoryreloaded.api.rednet.connectivity.RedNetConnectionType
+import powercrystals.minefactoryreloaded.api.rednet.{IRedNetNetworkContainer, IRedNetOmniNode}
 
 @Optional.Interface(iface = "powercrystals.minefactoryreloaded.api.rednet.IConnectableRedNet", modid = Mods.IDs.MineFactoryReloaded)
 abstract class RedstoneAware extends SimpleBlock with IRedNetOmniNode {
@@ -20,7 +19,7 @@ abstract class RedstoneAware extends SimpleBlock with IRedNetOmniNode {
 
   override def canConnectRedstone(world: IBlockAccess, x: Int, y: Int, z: Int, side: ForgeDirection) =
     world.getTileEntity(x, y, z) match {
-      case redstone: traits.RedstoneAware => redstone.isOutputEnabled
+      case redstone: tileentity.traits.RedstoneAware => redstone.isOutputEnabled
       case _ => false
     }
 
@@ -29,7 +28,7 @@ abstract class RedstoneAware extends SimpleBlock with IRedNetOmniNode {
 
   override def isProvidingWeakPower(world: IBlockAccess, x: Int, y: Int, z: Int, side: ForgeDirection) =
     world.getTileEntity(x, y, z) match {
-      case redstone: traits.RedstoneAware => math.min(math.max(redstone.output(side), 0), 15)
+      case redstone: tileentity.traits.RedstoneAware => math.min(math.max(redstone.output(side), 0), 15)
       case _ => super.isProvidingWeakPower(world, x, y, z, side)
     }
 
@@ -38,7 +37,7 @@ abstract class RedstoneAware extends SimpleBlock with IRedNetOmniNode {
   override def onNeighborBlockChange(world: World, x: Int, y: Int, z: Int, block: Block) {
     if (Mods.MineFactoryReloaded.isAvailable) {
       world.getTileEntity(x, y, z) match {
-        case t: BundledRedstoneAware => for (side <- ForgeDirection.VALID_DIRECTIONS) {
+        case t: tileentity.traits.BundledRedstoneAware => for (side <- ForgeDirection.VALID_DIRECTIONS) {
           world.getBlock(x + side.offsetX, y + side.offsetY, z + side.offsetZ) match {
             case block: IRedNetNetworkContainer =>
             case _ => for (color <- 0 until 16) {
@@ -50,7 +49,7 @@ abstract class RedstoneAware extends SimpleBlock with IRedNetOmniNode {
       }
     }
     world.getTileEntity(x, y, z) match {
-      case redstone: traits.RedstoneAware => redstone.checkRedstoneInputChanged()
+      case redstone: tileentity.traits.RedstoneAware => redstone.checkRedstoneInputChanged()
       case _ => // Ignore.
     }
   }
@@ -61,13 +60,13 @@ abstract class RedstoneAware extends SimpleBlock with IRedNetOmniNode {
 
   override def getOutputValue(world: World, x: Int, y: Int, z: Int, side: ForgeDirection, color: Int) =
     world.getTileEntity(x, y, z) match {
-      case t: BundledRedstoneAware => t.bundledOutput(side, color)
+      case t: tileentity.traits.BundledRedstoneAware => t.bundledOutput(side, color)
       case _ => 0
     }
 
   override def getOutputValues(world: World, x: Int, y: Int, z: Int, side: ForgeDirection) =
     world.getTileEntity(x, y, z) match {
-      case t: BundledRedstoneAware => t.bundledOutput(side)
+      case t: tileentity.traits.BundledRedstoneAware => t.bundledOutput(side)
       case _ => Array.fill(16)(0)
     }
 
@@ -75,7 +74,7 @@ abstract class RedstoneAware extends SimpleBlock with IRedNetOmniNode {
 
   override def onInputsChanged(world: World, x: Int, y: Int, z: Int, side: ForgeDirection, inputValues: Array[Int]) =
     world.getTileEntity(x, y, z) match {
-      case t: BundledRedstoneAware => for (color <- 0 until 16) {
+      case t: tileentity.traits.BundledRedstoneAware => for (color <- 0 until 16) {
         t.rednetInput(side, color, inputValues(color))
       }
       case _ =>
diff --git a/src/main/scala/li/cil/oc/common/block/RobotAfterimage.scala b/src/main/scala/li/cil/oc/common/block/RobotAfterimage.scala
index 370038245..a99637766 100644
--- a/src/main/scala/li/cil/oc/common/block/RobotAfterimage.scala
+++ b/src/main/scala/li/cil/oc/common/block/RobotAfterimage.scala
@@ -12,7 +12,7 @@ import net.minecraft.util.{IIcon, MovingObjectPosition}
 import net.minecraft.world.{IBlockAccess, World}
 import net.minecraftforge.common.util.ForgeDirection
 
-class RobotAfterimage extends SimpleBlock with SpecialBlock {
+class RobotAfterimage extends SimpleBlock with traits.SpecialBlock {
   setLightOpacity(0)
 
   showInItemList = false
diff --git a/src/main/scala/li/cil/oc/common/block/RobotProxy.scala b/src/main/scala/li/cil/oc/common/block/RobotProxy.scala
index 9c2b778fb..ae2831340 100644
--- a/src/main/scala/li/cil/oc/common/block/RobotProxy.scala
+++ b/src/main/scala/li/cil/oc/common/block/RobotProxy.scala
@@ -17,7 +17,7 @@ import net.minecraft.util.{AxisAlignedBB, IIcon, MovingObjectPosition, Vec3}
 import net.minecraft.world.{IBlockAccess, World}
 import net.minecraftforge.common.util.ForgeDirection
 
-class RobotProxy extends RedstoneAware with SpecialBlock {
+class RobotProxy extends RedstoneAware with traits.SpecialBlock {
   setLightOpacity(0)
 
   showInItemList = false
diff --git a/src/main/scala/li/cil/oc/common/block/ServerRack.scala b/src/main/scala/li/cil/oc/common/block/ServerRack.scala
index a1b80bc03..cf86255e5 100644
--- a/src/main/scala/li/cil/oc/common/block/ServerRack.scala
+++ b/src/main/scala/li/cil/oc/common/block/ServerRack.scala
@@ -9,7 +9,7 @@ import net.minecraft.entity.player.EntityPlayer
 import net.minecraft.world.{IBlockAccess, World}
 import net.minecraftforge.common.util.ForgeDirection
 
-class ServerRack extends RedstoneAware with SpecialBlock {
+class ServerRack extends RedstoneAware with traits.SpecialBlock with traits.PowerAcceptor {
   override protected def customTextures = Array(
     None,
     None,
diff --git a/src/main/scala/li/cil/oc/common/block/traits/PowerAcceptor.scala b/src/main/scala/li/cil/oc/common/block/traits/PowerAcceptor.scala
new file mode 100644
index 000000000..024847873
--- /dev/null
+++ b/src/main/scala/li/cil/oc/common/block/traits/PowerAcceptor.scala
@@ -0,0 +1,27 @@
+package li.cil.oc.common.block.traits
+
+import cpw.mods.fml.common.Optional
+import li.cil.oc.common.tileentity.traits.power.UniversalElectricity
+import li.cil.oc.util.mods.Mods
+import net.minecraft.block.Block
+import net.minecraft.tileentity.TileEntity
+import net.minecraft.world.World
+import net.minecraftforge.common.util.ForgeDirection
+import universalelectricity.api.core.grid.electric.IEnergyNode
+
+trait PowerAcceptor extends Block {
+  override def onNeighborBlockChange(world: World, x: Int, y: Int, z: Int, block: Block) {
+    super.onNeighborBlockChange(world, x, y, z, block)
+    if (Mods.UniversalElectricity.isAvailable) {
+      updateUENode(world.getTileEntity(x, y, z))
+    }
+  }
+
+  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
+  private def updateUENode(tileEntity: TileEntity) {
+    tileEntity match {
+      case ue: UniversalElectricity => ue.getNode(classOf[IEnergyNode], ForgeDirection.UNKNOWN).reconstruct()
+      case _ =>
+    }
+  }
+}
diff --git a/src/main/scala/li/cil/oc/common/block/SpecialBlock.scala b/src/main/scala/li/cil/oc/common/block/traits/SpecialBlock.scala
similarity index 88%
rename from src/main/scala/li/cil/oc/common/block/SpecialBlock.scala
rename to src/main/scala/li/cil/oc/common/block/traits/SpecialBlock.scala
index d24bb8d50..242b5a037 100644
--- a/src/main/scala/li/cil/oc/common/block/SpecialBlock.scala
+++ b/src/main/scala/li/cil/oc/common/block/traits/SpecialBlock.scala
@@ -1,5 +1,6 @@
-package li.cil.oc.common.block
+package li.cil.oc.common.block.traits
 
+import li.cil.oc.common.block.SimpleBlock
 import net.minecraft.world.IBlockAccess
 import net.minecraftforge.common.util.ForgeDirection
 
diff --git a/src/main/scala/li/cil/oc/common/component/TextBuffer.scala b/src/main/scala/li/cil/oc/common/component/TextBuffer.scala
index 437fe0a23..16c1776f7 100644
--- a/src/main/scala/li/cil/oc/common/component/TextBuffer.scala
+++ b/src/main/scala/li/cil/oc/common/component/TextBuffer.scala
@@ -423,7 +423,7 @@ object TextBuffer {
   def onChunkUnload(e: ChunkEvent.Unload) {
     val chunk = e.getChunk
     clientBuffers = clientBuffers.filter(t => {
-      val keep = t.host.world != e.world || !chunk.isAtLocation(math.round(t.host.xPosition - 0.5).toInt << 4, math.round(t.host.zPosition - 0.5).toInt << 4)
+      val keep = t.host.world != e.world || !chunk.isAtLocation(math.floor(t.host.xPosition).toInt << 4, math.floor(t.host.zPosition).toInt << 4)
       if (!keep) {
         ClientComponentTracker.remove(t.proxy.nodeAddress)
       }
diff --git a/src/main/scala/li/cil/oc/common/event/ChunkloaderUpgradeHandler.scala b/src/main/scala/li/cil/oc/common/event/ChunkloaderUpgradeHandler.scala
index a4bfa08cd..36bd777f7 100644
--- a/src/main/scala/li/cil/oc/common/event/ChunkloaderUpgradeHandler.scala
+++ b/src/main/scala/li/cil/oc/common/event/ChunkloaderUpgradeHandler.scala
@@ -59,7 +59,7 @@ object ChunkloaderUpgradeHandler extends LoadingCallback {
   }
 
   def updateLoadedChunk(loader: UpgradeChunkloader) {
-    val robotChunk = new ChunkCoordIntPair(math.round(loader.host.xPosition - 0.5).toInt >> 4, math.round(loader.host.zPosition - 0.5).toInt >> 4)
+    val robotChunk = new ChunkCoordIntPair(math.floor(loader.host.xPosition).toInt >> 4, math.floor(loader.host.zPosition).toInt >> 4)
     loader.ticket.foreach(ticket => {
       ticket.getChunkList.collect {
         case chunk: ChunkCoordIntPair if chunk != robotChunk => ForgeChunkManager.unforceChunk(ticket, chunk)
diff --git a/src/main/scala/li/cil/oc/common/item/Tablet.scala b/src/main/scala/li/cil/oc/common/item/Tablet.scala
index 6d9cf7631..37e8346a3 100644
--- a/src/main/scala/li/cil/oc/common/item/Tablet.scala
+++ b/src/main/scala/li/cil/oc/common/item/Tablet.scala
@@ -15,6 +15,7 @@ import li.cil.oc.api.{Driver, Machine}
 import li.cil.oc.common.inventory.ComponentInventory
 import li.cil.oc.common.{GuiType, Slot}
 import li.cil.oc.server.component
+import li.cil.oc.util.ExtendedNBT._
 import li.cil.oc.util.ItemUtils.TabletData
 import li.cil.oc.util.{ItemUtils, RotationHelper}
 import li.cil.oc.{OpenComputers, Settings, api}
@@ -121,8 +122,8 @@ class TabletWrapper(var stack: ItemStack, var holder: EntityPlayer) extends Comp
       val data = stack.getTagCompound
       load(data)
       if (!world.isRemote) {
-        machine.load(data.getCompoundTag(Settings.namespace + "data"))
         tablet.load(data.getCompoundTag(Settings.namespace + "component"))
+        machine.load(data.getCompoundTag(Settings.namespace + "data"))
       }
     }
   }
@@ -136,8 +137,8 @@ class TabletWrapper(var stack: ItemStack, var holder: EntityPlayer) extends Comp
       if (!data.hasKey(Settings.namespace + "data")) {
         data.setTag(Settings.namespace + "data", new NBTTagCompound())
       }
-      machine.save(data.getCompoundTag(Settings.namespace + "data"))
-      tablet.save(data.getCompoundTag(Settings.namespace + "component"))
+      data.setNewCompoundTag(Settings.namespace + "component", tablet.save)
+      data.setNewCompoundTag(Settings.namespace + "data", machine.save)
 
       // Force tablets into stopped state to avoid errors when trying to
       // load deleted machine states.
@@ -237,13 +238,7 @@ class TabletWrapper(var stack: ItemStack, var holder: EntityPlayer) extends Comp
     case _ => 0
   }))
 
-  override def maxComponents = items.foldLeft(0)((acc, itemOption) => acc + (itemOption match {
-    case Some(item) => Option(api.Driver.driverFor(item)) match {
-      case Some(driver: api.driver.Processor) => driver.supportedComponents(item)
-      case _ => 0
-    }
-    case _ => 0
-  }))
+  override def maxComponents = 32
 
   override def componentSlot(address: String) = components.indexWhere(_.exists(env => env.node != null && env.node.address == address))
 
diff --git a/src/main/scala/li/cil/oc/common/template/RobotTemplate.scala b/src/main/scala/li/cil/oc/common/template/RobotTemplate.scala
index a1adaae89..c8b3463e7 100644
--- a/src/main/scala/li/cil/oc/common/template/RobotTemplate.scala
+++ b/src/main/scala/li/cil/oc/common/template/RobotTemplate.scala
@@ -25,7 +25,7 @@ object RobotTemplate extends Template {
     val data = new ItemUtils.RobotData()
     data.tier = ItemUtils.caseTier(inventory.getStackInSlot(0))
     data.name = ItemUtils.RobotData.randomName
-    data.robotEnergy = 50000
+    data.robotEnergy = Settings.get.bufferRobot.toInt
     data.totalEnergy = data.robotEnergy
     data.containers = items.slice(1, 4).filter(_ != null).toArray
     data.components = items.drop(4).filter(_ != null).toArray
@@ -33,7 +33,7 @@ object RobotTemplate extends Template {
     data.save(stack)
     val energy = Settings.get.robotBaseCost + complexity(inventory) * Settings.get.robotComplexityCost
 
-    Array(stack, energy: java.lang.Double)
+    Array(stack, double2Double(energy))
   }
 
   def register() {
diff --git a/src/main/scala/li/cil/oc/common/template/TabletTemplate.scala b/src/main/scala/li/cil/oc/common/template/TabletTemplate.scala
index e8592e6c0..c68de54e8 100644
--- a/src/main/scala/li/cil/oc/common/template/TabletTemplate.scala
+++ b/src/main/scala/li/cil/oc/common/template/TabletTemplate.scala
@@ -1,7 +1,7 @@
 package li.cil.oc.common.template
 
 import cpw.mods.fml.common.event.FMLInterModComms
-import li.cil.oc.api
+import li.cil.oc.{Settings, api}
 import li.cil.oc.common.{Slot, Tier}
 import li.cil.oc.server.driver.item
 import li.cil.oc.util.ExtendedNBT._
@@ -23,22 +23,24 @@ object TabletTemplate extends Template {
 
   def validateUpgrade(inventory: IInventory, slot: Int, tier: Int, stack: ItemStack): Boolean = Option(api.Driver.driverFor(stack)) match {
     case Some(driver) if driver.slot(stack) == Slot.Upgrade =>
-      driver != item.Keyboard && driver != item.Screen &&
+      driver != item.Screen &&
         driver.slot(stack) == Slot.Upgrade && driver.tier(stack) <= tier
     case _ => false
   }
 
   def assemble(inventory: IInventory): Array[AnyRef] = {
     val items = mutable.ArrayBuffer(
-      Option(api.Items.get("screen1").createItemStack(1)),
-      Option(api.Items.get("keyboard").createItemStack(1))
+      Option(api.Items.get("screen1").createItemStack(1))
     ) ++ (1 until inventory.getSizeInventory).map(slot => Option(inventory.getStackInSlot(slot)))
     val data = new ItemUtils.TabletData()
     data.items = items.filter(_.isDefined).toArray
+    data.energy = Settings.get.bufferTablet
+    data.maxEnergy = data.energy
     val stack = api.Items.get("tablet").createItemStack(1)
     data.save(stack)
+    val energy = Settings.get.tabletBaseCost + complexity(inventory) * Settings.get.tabletComplexityCost
 
-    Array(stack)
+    Array(stack, double2Double(energy))
   }
 
   def register() {
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Disassembler.scala b/src/main/scala/li/cil/oc/common/tileentity/Disassembler.scala
index 992e289d5..5e28f0678 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Disassembler.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Disassembler.scala
@@ -83,6 +83,7 @@ class Disassembler extends traits.Environment with traits.PowerAcceptor with tra
       else if (api.Items.get(stack) == api.Items.get("server1")) enqueueServer(stack, 0)
       else if (api.Items.get(stack) == api.Items.get("server2")) enqueueServer(stack, 1)
       else if (api.Items.get(stack) == api.Items.get("server3")) enqueueServer(stack, 2)
+      else if (api.Items.get(stack) == api.Items.get("tablet")) enqueueTablet(stack)
       else if (api.Items.get(stack) == api.Items.get("navigationUpgrade")) {
         enqueueNavigationUpgrade(stack)
       }
@@ -115,6 +116,15 @@ class Disassembler extends traits.Environment with traits.PowerAcceptor with tra
     queue ++= getIngredients(server)
   }
 
+  private def enqueueTablet(tablet: ItemStack) {
+    val info = new ItemUtils.TabletData(tablet)
+    queue += api.Items.get("tabletCase").createItemStack(1)
+    queue ++= info.items.collect {
+      case Some(stack) => stack
+    }.drop(1) // Screen.
+    node.changeBuffer(info.energy)
+  }
+
   private def enqueueNavigationUpgrade(stack: ItemStack) {
     val info = new ItemUtils.NavigationUpgradeData(stack)
     val parts = getIngredients(stack)
@@ -224,5 +234,6 @@ class Disassembler extends traits.Environment with traits.PowerAcceptor with tra
 
   override def isItemValidForSlot(i: Int, stack: ItemStack) =
     api.Items.get(stack) == api.Items.get("robot") ||
-      ((Settings.get.disassembleAllTheThings || api.Items.get(stack) != null) && !getIngredients(stack).isEmpty)
+      api.Items.get(stack) == api.Items.get("tablet") ||
+      ((Settings.get.disassembleAllTheThings || api.Items.get(stack) != null) && getIngredients(stack).nonEmpty)
 }
diff --git a/src/main/scala/li/cil/oc/common/tileentity/traits/PowerAcceptor.scala b/src/main/scala/li/cil/oc/common/tileentity/traits/PowerAcceptor.scala
index 497533a12..184124528 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/traits/PowerAcceptor.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/traits/PowerAcceptor.scala
@@ -2,6 +2,7 @@ package li.cil.oc.common.tileentity.traits
 
 trait PowerAcceptor
   extends power.Common
+  with power.AppliedEnergistics2
   with power.BuildCraft
   with power.Factorization
   with power.Galacticraft
@@ -9,4 +10,4 @@ trait PowerAcceptor
   with power.IndustrialCraft2Classic
   with power.Mekanism
   with power.RedstoneFlux
-//  with power.UniversalElectricity
+  with power.UniversalElectricity
diff --git a/src/main/scala/li/cil/oc/common/tileentity/traits/power/AppliedEnergistics2.scala b/src/main/scala/li/cil/oc/common/tileentity/traits/power/AppliedEnergistics2.scala
new file mode 100644
index 000000000..d7ebb68d3
--- /dev/null
+++ b/src/main/scala/li/cil/oc/common/tileentity/traits/power/AppliedEnergistics2.scala
@@ -0,0 +1,128 @@
+package li.cil.oc.common.tileentity.traits.power
+
+import java.util
+
+import appeng.api.AEApi
+import appeng.api.config.{Actionable, PowerMultiplier}
+import appeng.api.networking._
+import appeng.api.networking.energy.IEnergyGrid
+import appeng.api.util.{AECableType, AEColor, DimensionalCoord}
+import cpw.mods.fml.common.Optional
+import li.cil.oc.Settings
+import li.cil.oc.common.EventHandler
+import li.cil.oc.util.mods.Mods
+import net.minecraft.nbt.NBTTagCompound
+import net.minecraftforge.common.util.ForgeDirection
+
+import scala.collection.convert.WrapAsJava._
+
+trait AppliedEnergistics2 extends Common {
+  private lazy val useAppliedEnergistics2Power = isServer && Mods.AppliedEnergistics2.isAvailable
+
+  // 'Manual' lazy val, because lazy vals mess up the class loader, leading to class not found exceptions.
+  private var node: Option[AnyRef] = None
+
+  override def updateEntity() {
+    super.updateEntity()
+    if (useAppliedEnergistics2Power && world.getTotalWorldTime % Settings.get.tickFrequency == 0) {
+      updateEnergy()
+    }
+  }
+
+  @Optional.Method(modid = Mods.IDs.AppliedEnergistics2)
+  private def updateEnergy() {
+    val grid = getGridNode(ForgeDirection.UNKNOWN).getGrid
+    if (grid != null) {
+      val cache = grid.getCache(classOf[IEnergyGrid]).asInstanceOf[IEnergyGrid]
+      if (cache != null) {
+        for (side <- ForgeDirection.VALID_DIRECTIONS) {
+          val demand = (globalBufferSize(side) - globalBuffer(side)) / Settings.get.ratioAppliedEnergistics2
+          if (demand > 1) {
+            val power = cache.extractAEPower(demand, Actionable.MODULATE, PowerMultiplier.CONFIG)
+            tryChangeBuffer(side, power * Settings.get.ratioAppliedEnergistics2)
+          }
+        }
+      }
+    }
+  }
+
+  override def validate() {
+    super.validate()
+    if (useAppliedEnergistics2Power) EventHandler.scheduleAE2Add(this)
+  }
+
+  override def invalidate() {
+    super.invalidate()
+    if (useAppliedEnergistics2Power) securityBreak()
+  }
+
+  override def onChunkUnload() {
+    super.onChunkUnload()
+    if (useAppliedEnergistics2Power) securityBreak()
+  }
+
+  // ----------------------------------------------------------------------- //
+
+  override def readFromNBT(nbt: NBTTagCompound) {
+    super.readFromNBT(nbt)
+    if (useAppliedEnergistics2Power) loadNode(nbt)
+  }
+
+  @Optional.Method(modid = Mods.IDs.AppliedEnergistics2)
+  private def loadNode(nbt: NBTTagCompound): Unit = {
+    getGridNode(ForgeDirection.UNKNOWN).loadFromNBT(Settings.namespace + "ae2power", nbt)
+  }
+
+  override def writeToNBT(nbt: NBTTagCompound) {
+    super.writeToNBT(nbt)
+    if (useAppliedEnergistics2Power) saveNode(nbt)
+  }
+
+  @Optional.Method(modid = Mods.IDs.AppliedEnergistics2)
+  private def saveNode(nbt: NBTTagCompound): Unit = {
+    getGridNode(ForgeDirection.UNKNOWN).saveToNBT(Settings.namespace + "ae2power", nbt)
+  }
+
+  // ----------------------------------------------------------------------- //
+
+  @Optional.Method(modid = Mods.IDs.AppliedEnergistics2)
+  def getGridNode(side: ForgeDirection) = node match {
+    case Some(gridNode: IGridNode) => gridNode
+    case _ =>
+      val gridNode = AEApi.instance.createGridNode(new AppliedEnergistics2GridBlock(this))
+      node = Option(gridNode)
+      gridNode
+  }
+
+  @Optional.Method(modid = Mods.IDs.AppliedEnergistics2)
+  def getCableConnectionType(side: ForgeDirection) = AECableType.SMART
+
+  @Optional.Method(modid = Mods.IDs.AppliedEnergistics2)
+  def securityBreak() {
+    getGridNode(ForgeDirection.UNKNOWN).destroy()
+  }
+}
+
+class AppliedEnergistics2GridBlock(val tileEntity: AppliedEnergistics2) extends IGridBlock {
+  override def getIdlePowerUsage = 0.0
+
+  override def getFlags = util.EnumSet.noneOf(classOf[GridFlags])
+
+  override def isWorldAccessable = true
+
+  override def getLocation = new DimensionalCoord(tileEntity)
+
+  override def getGridColor = AEColor.Transparent
+
+  override def onGridNotification(p1: GridNotification) {}
+
+  override def setNetworkStatus(p1: IGrid, p2: Int) {}
+
+  override def getConnectableSides = util.EnumSet.copyOf(ForgeDirection.VALID_DIRECTIONS.filter(tileEntity.canConnectPower).toList)
+
+  override def getMachine = tileEntity.asInstanceOf[IGridHost]
+
+  override def gridChanged() {}
+
+  override def getMachineRepresentation = null
+}
\ No newline at end of file
diff --git a/src/main/scala/li/cil/oc/common/tileentity/traits/power/BuildCraft.scala b/src/main/scala/li/cil/oc/common/tileentity/traits/power/BuildCraft.scala
index 88265e97d..f62663a6b 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/traits/power/BuildCraft.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/traits/power/BuildCraft.scala
@@ -2,8 +2,10 @@ package li.cil.oc.common.tileentity.traits.power
 
 import buildcraft.api.power.{IPowerReceptor, PowerHandler}
 import cpw.mods.fml.common.Optional
+import li.cil.oc.util.ExtendedNBT._
 import li.cil.oc.util.mods.Mods
 import li.cil.oc.{OpenComputers, Settings}
+import net.minecraft.nbt.NBTTagCompound
 import net.minecraftforge.common.util.ForgeDirection
 
 trait BuildCraft extends Common {
@@ -16,18 +18,45 @@ trait BuildCraft extends Common {
   override def updateEntity() {
     super.updateEntity()
     if (useBuildCraftPower && world.getTotalWorldTime % Settings.get.tickFrequency == 0) {
-      for (side <- ForgeDirection.VALID_DIRECTIONS) {
-        val demand = (globalBufferSize(side) - globalBuffer(side)) / Settings.get.ratioBuildCraft
-        if (demand > 1) {
-          val power = getPowerProvider.useEnergy(1, demand.toFloat, true)
-          tryChangeBuffer(side, power * Settings.get.ratioBuildCraft)
-        }
+      updateEnergy()
+    }
+  }
+
+  @Optional.Method(modid = Mods.IDs.BuildCraftPower)
+  private def updateEnergy() {
+    for (side <- ForgeDirection.VALID_DIRECTIONS) {
+      val demand = (globalBufferSize(side) - globalBuffer(side)) / Settings.get.ratioBuildCraft
+      if (demand > 1) {
+        val power = getPowerProvider.useEnergy(1, demand.toFloat, true)
+        tryChangeBuffer(side, power * Settings.get.ratioBuildCraft)
       }
     }
   }
 
   // ----------------------------------------------------------------------- //
 
+  override def readFromNBT(nbt: NBTTagCompound) {
+    super.readFromNBT(nbt)
+    if (useBuildCraftPower) loadHandler(nbt)
+  }
+
+  @Optional.Method(modid = Mods.IDs.BuildCraftPower)
+  private def loadHandler(nbt: NBTTagCompound): Unit = {
+    Option(getPowerProvider).foreach(_.readFromNBT(nbt.getCompoundTag(Settings.namespace + "bcpower")))
+  }
+
+  override def writeToNBT(nbt: NBTTagCompound) {
+    super.writeToNBT(nbt)
+    if (useBuildCraftPower) saveHandler(nbt)
+  }
+
+  @Optional.Method(modid = Mods.IDs.BuildCraftPower)
+  private def saveHandler(nbt: NBTTagCompound): Unit = {
+    Option(getPowerProvider).foreach(h => nbt.setNewCompoundTag(Settings.namespace + "bcpower", h.writeToNBT))
+  }
+
+  // ----------------------------------------------------------------------- //
+
   @Optional.Method(modid = Mods.IDs.BuildCraftPower)
   def getPowerProvider = {
     if (Mods.BuildCraftPower.isAvailable && powerHandler.isEmpty) {
diff --git a/src/main/scala/li/cil/oc/common/tileentity/traits/power/UniversalElectricity.scala b/src/main/scala/li/cil/oc/common/tileentity/traits/power/UniversalElectricity.scala
index a435471ce..795c7412d 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/traits/power/UniversalElectricity.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/traits/power/UniversalElectricity.scala
@@ -1,52 +1,77 @@
-//package li.cil.oc.common.tileentity.traits.power
-//
-//import cpw.mods.fml.common.Optional
-//import li.cil.oc.Settings
-//import li.cil.oc.util.mods.Mods
-//import net.minecraftforge.common.util.ForgeDirection
-//import universalelectricity.api.core.grid.electric.{IElectricNode, IEnergyContainer}
-//import universalelectricity.api.core.grid.{INode, INodeProvider}
-//
-//@Optional.InterfaceList(Array(
-//  new Optional.Interface(iface = "universalelectricity.api.core.grid.INodeProvider", modid = Mods.IDs.UniversalElectricity),
-//  new Optional.Interface(iface = "universalelectricity.api.core.grid.electric.IEnergyContainer", modid = Mods.IDs.UniversalElectricity)
-//))
-//trait UniversalElectricity extends Common with INodeProvider with IEnergyContainer {
-//  private lazy val ueNode: AnyRef = universalelectricity.api.core.grid.NodeRegistry.get(this, classOf[IElectricNode])
-//
-//  private lazy val useUniversalElectricityPower = isServer && !Settings.get.ignorePower && Mods.BuildCraftPower.isAvailable
-//
-//  // ----------------------------------------------------------------------- //
-//
-//  override def updateEntity() {
-//    super.updateEntity()
-//    if (useUniversalElectricityPower && world.getWorldTime % Settings.get.tickFrequency == 0) {
-//      val electric = ueNode.asInstanceOf[IElectricNode]
-//      for (side <- ForgeDirection.VALID_DIRECTIONS) {
-//        val demand = (globalBufferSize(side) - globalBuffer(side)) / Settings.ratioUniversalElectricity
-//        val power = math.min(demand, electric.getEnergy)
-//        if (power > 1) {
-//          electric.removeEnergy(power, true)
-//          tryChangeBuffer(side, power * Settings.ratioUniversalElectricity)
-//        }
-//      }
-//    }
-//  }
-//
-//  // ----------------------------------------------------------------------- //
-//
-//  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
-//  override def getNode[N <: INode](nodeType: Class[N], from: ForgeDirection) = {
-//    if (canConnectPower(from) && nodeType == classOf[IElectricNode]) ueNode.asInstanceOf[N]
-//    else null.asInstanceOf[N]
-//  }
-//
-//  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
-//  override def setEnergy(from: ForgeDirection, energy: Double) {}
-//
-//  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
-//  override def getEnergy(from: ForgeDirection) = globalBuffer(from) / Settings.ratioUniversalElectricity
-//
-//  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
-//  override def getEnergyCapacity(from: ForgeDirection) = globalBufferSize(from) / Settings.ratioUniversalElectricity
-//}
+package li.cil.oc.common.tileentity.traits.power
+
+import cpw.mods.fml.common.Optional
+import li.cil.oc.{OpenComputers, Settings}
+import li.cil.oc.common.EventHandler
+import li.cil.oc.util.mods.Mods
+import net.minecraftforge.common.util.ForgeDirection
+import universalelectricity.api.core.grid.electric.IEnergyNode
+import universalelectricity.api.core.grid.{INode, INodeProvider}
+import universalelectricity.core.grid.node.NodeEnergy
+
+trait UniversalElectricity extends Common {
+  private var node: Option[AnyRef] = None
+
+  private lazy val useUniversalElectricityPower = isServer && Mods.UniversalElectricity.isAvailable
+
+  // ----------------------------------------------------------------------- //
+
+  override def updateEntity() {
+    super.updateEntity()
+    if (useUniversalElectricityPower && world.getTotalWorldTime % Settings.get.tickFrequency == 0) {
+      updateEnergy()
+    }
+  }
+
+  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
+  private def updateEnergy() {
+    node match {
+      case Some(energyNode: NodeEnergy) =>
+        for (side <- ForgeDirection.VALID_DIRECTIONS) {
+          val demand = (globalBufferSize(side) - globalBuffer(side)) / Settings.get.ratioUniversalElectricity
+          if (demand > 1) {
+            val power = energyNode.buffer.extractEnergy(demand, doExtract = true)
+            tryChangeBuffer(side, power * Settings.get.ratioUniversalElectricity)
+          }
+        }
+      case _ =>
+    }
+  }
+
+  // ----------------------------------------------------------------------- //
+
+  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
+  def getNode(nodeType: Class[_ <: INode], side: ForgeDirection): INode = {
+    if (nodeType != null && classOf[IEnergyNode].isAssignableFrom(nodeType)) node match {
+      case Some(energyNode: NodeEnergy) => energyNode
+      case _ =>
+        this match {
+          case nodeProvider: INodeProvider =>
+            val energyNode = new NodeEnergy(nodeProvider, 500, 500, 500) {
+              override def canConnect(from: ForgeDirection) = canConnectPower(from) && super.canConnect(from)
+            }
+            node = Option(energyNode)
+            energyNode
+          case _ =>
+            OpenComputers.log.warn("Failed setting up UniversalElectricity power, which most likely means the class transformer did not run. You're probably running in an incorrectly configured development environment. Try adding `-Dfml.coreMods.load=li.cil.oc.common.launch.TransformerLoader` to the VM options of your run configuration.")
+            null
+        }
+    }
+    else null
+  }
+
+  override def validate() {
+    super.validate()
+    if (useUniversalElectricityPower) EventHandler.scheduleUEAdd(this)
+  }
+
+  override def invalidate() {
+    super.invalidate()
+    if (useUniversalElectricityPower) deconstructNode()
+  }
+
+  @Optional.Method(modid = Mods.IDs.UniversalElectricity)
+  private def deconstructNode() {
+    getNode(classOf[IEnergyNode], ForgeDirection.UNKNOWN).deconstruct()
+  }
+}
diff --git a/src/main/scala/li/cil/oc/server/component/Geolyzer.scala b/src/main/scala/li/cil/oc/server/component/Geolyzer.scala
index 53b2e63c5..a719642ee 100644
--- a/src/main/scala/li/cil/oc/server/component/Geolyzer.scala
+++ b/src/main/scala/li/cil/oc/server/component/Geolyzer.scala
@@ -22,7 +22,7 @@ class Geolyzer(val host: EnvironmentHost) extends component.ManagedComponent {
     if (math.abs(rx) > Settings.get.geolyzerRange || math.abs(rz) > Settings.get.geolyzerRange) {
       throw new IllegalArgumentException("location out of bounds")
     }
-    val (x, y, z) = ((host.xPosition - 0.5).toInt, (host.yPosition - 0.5).toInt, (host.zPosition - 0.5).toInt)
+    val (x, y, z) = (math.floor(host.xPosition).toInt, math.floor(host.yPosition).toInt, math.floor(host.zPosition).toInt)
     val bx = x + rx
     val bz = z + rz
 
diff --git a/src/main/scala/li/cil/oc/server/component/UpgradeInventoryController.scala b/src/main/scala/li/cil/oc/server/component/UpgradeInventoryController.scala
index eb88f4763..1331ca6ef 100644
--- a/src/main/scala/li/cil/oc/server/component/UpgradeInventoryController.scala
+++ b/src/main/scala/li/cil/oc/server/component/UpgradeInventoryController.scala
@@ -23,7 +23,7 @@ class UpgradeInventoryController(val host: EnvironmentHost with Robot) extends c
   def getInventorySize(context: Context, args: Arguments): Array[AnyRef] = {
     val facing = checkSideForInventory(args, 0)
     if (facing == host.facing.getOpposite) result(host.inventorySize)
-    else InventoryUtils.inventoryAt(host.world, math.round(host.xPosition - 0.5).toInt + facing.offsetX, math.round(host.yPosition - 0.5).toInt + facing.offsetY, math.round(host.zPosition - 0.5).toInt + facing.offsetZ) match {
+    else InventoryUtils.inventoryAt(host.world, math.floor(host.xPosition).toInt + facing.offsetX, math.floor(host.yPosition).toInt + facing.offsetY, math.floor(host.zPosition).toInt + facing.offsetZ) match {
       case Some(inventory) => result(inventory.getSizeInventory)
       case _ => result(Unit, "no inventory")
     }
@@ -37,7 +37,7 @@ class UpgradeInventoryController(val host: EnvironmentHost with Robot) extends c
       if (slot < 0 || slot >= host.inventorySize) result(Unit)
       else result(host.getStackInSlot(slot + 1 + host.containerCount))
     }
-    else InventoryUtils.inventoryAt(host.world, math.round(host.xPosition - 0.5).toInt + facing.offsetX, math.round(host.yPosition - 0.5).toInt + facing.offsetY, math.round(host.zPosition - 0.5).toInt + facing.offsetZ) match {
+    else InventoryUtils.inventoryAt(host.world, math.floor(host.xPosition).toInt + facing.offsetX, math.floor(host.yPosition).toInt + facing.offsetY, math.floor(host.zPosition).toInt + facing.offsetZ) match {
       case Some(inventory) =>
         if (slot < 0 || slot > inventory.getSizeInventory) result(Unit)
         else result(inventory.getStackInSlot(slot))
@@ -52,7 +52,7 @@ class UpgradeInventoryController(val host: EnvironmentHost with Robot) extends c
     val selectedSlot = host.selectedSlot
     val stack = host.getStackInSlot(selectedSlot)
     if (stack != null && stack.stackSize > 0) {
-      InventoryUtils.inventoryAt(host.world, math.round(host.xPosition - 0.5).toInt + facing.offsetX, math.round(host.yPosition - 0.5).toInt + facing.offsetY, math.round(host.zPosition - 0.5).toInt + facing.offsetZ) match {
+      InventoryUtils.inventoryAt(host.world, math.floor(host.xPosition).toInt + facing.offsetX, math.floor(host.yPosition).toInt + facing.offsetY, math.floor(host.zPosition).toInt + facing.offsetZ) match {
         case Some(inventory) if inventory.isUseableByPlayer(host.player) =>
           val slot = args.checkSlot(inventory, 1)
           if (!InventoryUtils.insertIntoInventorySlot(stack, inventory, facing.getOpposite, slot, count)) {
@@ -82,7 +82,7 @@ class UpgradeInventoryController(val host: EnvironmentHost with Robot) extends c
     val facing = checkSideForAction(args, 0)
     val count = args.optionalItemCount(2)
 
-    InventoryUtils.inventoryAt(host.world, math.round(host.xPosition - 0.5).toInt + facing.offsetX, math.round(host.yPosition - 0.5).toInt + facing.offsetY, math.round(host.zPosition - 0.5).toInt + facing.offsetZ) match {
+    InventoryUtils.inventoryAt(host.world, math.floor(host.xPosition).toInt + facing.offsetX, math.floor(host.yPosition).toInt + facing.offsetY, math.floor(host.zPosition).toInt + facing.offsetZ) match {
       case Some(inventory) if inventory.isUseableByPlayer(host.player) =>
         val slot = args.checkSlot(inventory, 1)
         if (InventoryUtils.extractFromInventorySlot(host.player.inventory.addItemStackToInventory, inventory, facing.getOpposite, slot, count)) {
diff --git a/src/main/scala/li/cil/oc/server/component/UpgradeSign.scala b/src/main/scala/li/cil/oc/server/component/UpgradeSign.scala
index 854b52d54..eda19f78c 100644
--- a/src/main/scala/li/cil/oc/server/component/UpgradeSign.scala
+++ b/src/main/scala/li/cil/oc/server/component/UpgradeSign.scala
@@ -18,9 +18,8 @@ class UpgradeSign(val host: EnvironmentHost with Rotatable) extends component.Ma
 
   @Callback(doc = """function():string -- Get the text on the sign in front of the robot.""")
   def getValue(context: Context, args: Arguments): Array[AnyRef] = {
-    val facing = host.facing
-    host.world.getTileEntity(math.round(host.xPosition - 0.5).toInt + facing.offsetX, math.round(host.yPosition - 0.5).toInt + facing.offsetY, math.round(host.zPosition - 0.5).toInt + facing.offsetZ) match {
-      case sign: TileEntitySign => result(sign.signText.mkString("\n"))
+    findSign match {
+      case Some(sign) => result(sign.signText.mkString("\n"))
       case _ => result(Unit, "no sign")
     }
   }
@@ -28,14 +27,23 @@ class UpgradeSign(val host: EnvironmentHost with Rotatable) extends component.Ma
   @Callback(doc = """function(value:string):string -- Set the text on the sign in front of the robot.""")
   def setValue(context: Context, args: Arguments): Array[AnyRef] = {
     val text = args.checkString(0).lines.padTo(4, "").map(line => if (line.length > 15) line.substring(0, 15) else line)
-    val facing = host.facing
-    val (sx, sy, sz) = (math.round(host.xPosition - 0.5).toInt + facing.offsetX, math.round(host.yPosition - 0.5).toInt + facing.offsetY, math.round(host.zPosition - 0.5).toInt + facing.offsetZ)
-    host.world.getTileEntity(sx, sy, sz) match {
-      case sign: TileEntitySign =>
+    findSign match {
+      case Some(sign) =>
         text.copyToArray(sign.signText)
-        host.world.markBlockForUpdate(sx, sy, sz)
+        host.world.markBlockForUpdate(sign.xCoord, sign.yCoord, sign.zCoord)
         result(sign.signText.mkString("\n"))
       case _ => result(Unit, "no sign")
     }
   }
+
+  private def findSign = {
+    val (x, y, z) = (math.floor(host.xPosition).toInt, math.floor(host.yPosition).toInt, math.floor(host.zPosition).toInt)
+    host.world.getTileEntity(x, y, z) match {
+      case sign: TileEntitySign => Option(sign)
+      case _ => host.world.getTileEntity(x + host.facing.offsetX, y + host.facing.offsetY, z + host.facing.offsetZ) match {
+        case sign: TileEntitySign => Option(sign)
+        case _ => None
+      }
+    }
+  }
 }
diff --git a/src/main/scala/li/cil/oc/server/component/UpgradeSolarGenerator.scala b/src/main/scala/li/cil/oc/server/component/UpgradeSolarGenerator.scala
index b64d7eaef..8c51e092a 100644
--- a/src/main/scala/li/cil/oc/server/component/UpgradeSolarGenerator.scala
+++ b/src/main/scala/li/cil/oc/server/component/UpgradeSolarGenerator.scala
@@ -27,7 +27,7 @@ class UpgradeSolarGenerator(val host: EnvironmentHost) extends component.Managed
     ticksUntilCheck -= 1
     if (ticksUntilCheck <= 0) {
       ticksUntilCheck = 100
-      isSunShining = isSunVisible(host.world, math.round(host.xPosition - 0.5).toInt, math.round(host.yPosition - 0.5).toInt + 1, math.round(host.zPosition - 0.5).toInt)
+      isSunShining = isSunVisible(host.world, math.floor(host.xPosition).toInt, math.floor(host.yPosition).toInt + 1, math.floor(host.zPosition).toInt)
     }
     if (isSunShining) {
       node.changeBuffer(Settings.get.solarGeneratorEfficiency)
diff --git a/src/main/scala/li/cil/oc/server/component/WirelessNetworkCard.scala b/src/main/scala/li/cil/oc/server/component/WirelessNetworkCard.scala
index f044e6981..b9a4361cf 100644
--- a/src/main/scala/li/cil/oc/server/component/WirelessNetworkCard.scala
+++ b/src/main/scala/li/cil/oc/server/component/WirelessNetworkCard.scala
@@ -21,11 +21,11 @@ class WirelessNetworkCard(val host: EnvironmentHost) extends NetworkCard with Wi
 
   // ----------------------------------------------------------------------- //
 
-  override def x = math.round(host.xPosition - 0.5).toInt
+  override def x = math.floor(host.xPosition).toInt
 
-  override def y = math.round(host.yPosition - 0.5).toInt
+  override def y = math.floor(host.yPosition).toInt
 
-  override def z = math.round(host.zPosition - 0.5).toInt
+  override def z = math.floor(host.zPosition).toInt
 
   override def world = host.world
 
diff --git a/src/main/scala/li/cil/oc/util/mods/Mods.scala b/src/main/scala/li/cil/oc/util/mods/Mods.scala
index a2b045552..d7ac30d80 100644
--- a/src/main/scala/li/cil/oc/util/mods/Mods.scala
+++ b/src/main/scala/li/cil/oc/util/mods/Mods.scala
@@ -9,6 +9,7 @@ import scala.collection.mutable
 object Mods {
 
   object IDs {
+    final val AppliedEnergistics2 = "appliedenergistics2"
     final val BattleGear2 = "battlegear2"
     final val BuildCraftPower = "BuildCraftAPI|power"
     final val ComputerCraft = "ComputerCraft"
@@ -41,6 +42,7 @@ object Mods {
 
   lazy val isPowerProvidingModPresent = knownMods.exists(mod => mod.providesPower && mod.isAvailable)
 
+  val AppliedEnergistics2 = new SimpleMod(IDs.AppliedEnergistics2)
   val BattleGear2 = new SimpleMod(IDs.BattleGear2)
   val BuildCraftPower = new SimpleMod(IDs.BuildCraftPower, providesPower = true)
   val ComputerCraft = new SimpleMod(IDs.ComputerCraft)
@@ -72,7 +74,7 @@ object Mods {
   }
   val ThermalExpansion = new SimpleMod(IDs.ThermalExpansion, providesPower = true)
   val TinkersConstruct = new SimpleMod(IDs.TinkersConstruct)
-  val UniversalElectricity = new SimpleMod(IDs.UniversalElectricity + "@[3.1,)", providesPower = true)
+  val UniversalElectricity = new SimpleMod(IDs.UniversalElectricity, providesPower = true)
   val VersionChecker = new SimpleMod(IDs.VersionChecker)
   val Waila = new SimpleMod(IDs.Waila)
   val WirelessRedstoneCBE = new SimpleMod(IDs.WirelessRedstoneCBE)
diff --git a/src/main/scala/li/cil/oc/util/mods/UniversalElectricity.scala b/src/main/scala/li/cil/oc/util/mods/UniversalElectricity.scala
index 3f97a93a9..6d9497468 100644
--- a/src/main/scala/li/cil/oc/util/mods/UniversalElectricity.scala
+++ b/src/main/scala/li/cil/oc/util/mods/UniversalElectricity.scala
@@ -1,14 +1,13 @@
 package li.cil.oc.util.mods
 
 import net.minecraft.item.ItemStack
-
-// TODO Upgrade to UE 1.7 once it's available.
-//import universalelectricity.api.CompatibilityModule
+import net.minecraftforge.common.util.ForgeDirection
+import universalelectricity.compatibility.Compatibility
 
 object UniversalElectricity {
-  def isEnergyItem(stack: ItemStack) = false // CompatibilityModule.isHandler(stack.getItem)
+  def isEnergyItem(stack: ItemStack) = Compatibility.isHandler(stack.getItem, ForgeDirection.UNKNOWN)
 
-  def getEnergyInItem(stack: ItemStack) = 0 // CompatibilityModule.getEnergyItem(stack)
+  def getEnergyInItem(stack: ItemStack) = Compatibility.getEnergyItem(stack)
 
-  def chargeItem(stack: ItemStack, value: Long): Unit = {} // CompatibilityModule.chargeItem(stack, value, true)
+  def chargeItem(stack: ItemStack, value: Double) = Compatibility.chargeItem(stack, value, true)
 }