Need help with Energy Sink

package com.zeitheron.aps.intr.ic2.blocks.tiles;

import com.zeitheron.aps.InfoAR;
import com.zeitheron.hammercore.internal.capabilities.FEEnergyStorage;
import com.zeitheron.hammercore.tile.TileSyncableTickable;
import com.zeitheron.hammercore.utils.FrictionRotator;
import com.zeitheron.hammercore.utils.WorldUtil;

import ic2.api.energy.EnergyNet;
import ic2.api.energy.prefab.BasicSink;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.common.capabilities.Capability;
import net.minecraftforge.energy.CapabilityEnergy;
import net.minecraftforge.energy.IEnergyStorage;

public class TileICEngine extends TileSyncableTickable implements IEnergyStorage
{
    public final FEEnergyStorage energy = new FEEnergyStorage(getFECapacity());
    private boolean setup = false;
    
    public ResourceLocation baseTexture = new ResourceLocation(InfoAR.MOD_ID, "textures/models/engines/base_esteam.png");
    
    public double maxChargeEU = 0;
    public double maxVoltage;
    public int sinkTier;
    
    public double euPerTick = 8;
    public float pistonSpeed = .15F;
    
    public BasicSink sink = createSink();
    
    public EnumFacing getOrientation()
    {
        return WorldUtil.getFacing(world.getBlockState(pos));
    }
    
    public BasicSink createSink()
    {
        return new BasicSink(this, maxChargeEU, sinkTier);
    }
    
    public void setSinkTier(int sinkTier)
    {
        double euMax = EnergyNet.instance.getPowerFromTier(sinkTier);
        this.maxVoltage = euMax;
        this.euPerTick = euMax / 4;
        this.sinkTier = sinkTier;
    }
    
    public int getFECapacity()
    {
        return (int) (euPerTick * 1000);
    }
    
    public FrictionRotator rotator = new FrictionRotator();
    {
        rotator.friction = .1F;
    }
    
    @Override
    public boolean hasGui()
    {
        return true;
    }
    
    // TODO: Implement GUI stuff
    
    @Override
    public Object getClientGuiElement(EntityPlayer player)
    {
        return null;
    }
    
    @Override
    public Object getServerGuiElement(EntityPlayer player)
    {
        return null;
    }
    
    public void doSetup()
    {
        sink.onLoad();
        setup = true;
    }
    
    public boolean canWork()
    {
        return world.getRedstonePowerFromNeighbors(pos) > 0;
    }
    
    @Override
    public void tick()
    {
        if(!setup)
            doSetup();
        
        sink.update();
        rotator.update();
        
        if(!canWork())
            return;
        
        doConversionLoop();
        
        EnumFacing face = getOrientation();
        TileEntity receptor = world.getTileEntity(pos.offset(face));
        if(receptor != null)
        {
            IEnergyStorage storage = receptor.hasCapability(CapabilityEnergy.ENERGY, face.getOpposite()) ? receptor.getCapability(CapabilityEnergy.ENERGY, face.getOpposite()) : null;
            
            boolean changed = false;
            
            if(storage != null && storage.canReceive())
            {
                int io = energy.extractEnergy(storage.receiveEnergy(energy.getEnergyStored(), false), false);
                if(io > 0)
                    changed = true;
            }
            
            if(changed && atTickRate(60))
                sendChangesToNearby();
        }
    }
    
    public void doConversionLoop()
    {
        if(!world.isRemote && sink.useEnergy(euPerTick))
        {
            energy.receiveEnergy((int) Math.floor(euPerTick * 4), false);
            rotator.speedup(.2F);
            if(atTickRate(10))
                sendChangesToNearby();
        }
    }
    
    @Override
    public void invalidate()
    {
        sink.invalidate();
        super.invalidate();
    }
    
    @Override
    public void onChunkUnload()
    {
        sink.onChunkUnload();
    }
    
    @Override
    public boolean hasCapability(Capability<?> capability, EnumFacing facing)
    {
        if(capability == CapabilityEnergy.ENERGY)
            return facing == getOrientation();
        return super.hasCapability(capability, facing);
    }
    
    @Override
    public <T> T getCapability(Capability<T> capability, EnumFacing facing)
    {
        if(capability == CapabilityEnergy.ENERGY)
            return (T) this;
        return super.getCapability(capability, facing);
    }
    
    @Override
    public void writeNBT(NBTTagCompound nbt)
    {
        sink.writeToNBT(nbt);
        nbt.setTag("FE", energy.writeToNBT(new NBTTagCompound()));
        nbt.setFloat("PDegree", rotator.degree);
        nbt.setFloat("PSpeed", rotator.speed);
        nbt.setFloat("PCSpeed", rotator.currentSpeed);
    }
    
    @Override
    public void readNBT(NBTTagCompound nbt)
    {
        sink.readFromNBT(nbt);
        energy.readFromNBT(nbt.getCompoundTag("FE"));
        rotator.degree = nbt.getFloat("PDegree");
        rotator.speed = nbt.getFloat("PSpeed");
        rotator.currentSpeed = nbt.getFloat("PCSpeed");
    }
    
    @Override
    public int receiveEnergy(int maxReceive, boolean simulate)
    {
        return 0;
    }
    
    @Override
    public int extractEnergy(int maxExtract, boolean simulate)
    {
        return energy.extractEnergy(maxExtract, simulate);
    }
    
    @Override
    public int getEnergyStored()
    {
        return energy.getEnergyStored();
    }
    
    @Override
    public int getMaxEnergyStored()
    {
        return energy.getMaxEnergyStored();
    }
    
    @Override
    public boolean canExtract()
    {
        return true;
    }
    
    @Override
    public boolean canReceive()
    {
        return false;
    }
}