From Industrial-Craft-Wiki
Jump to: navigation, search

Experimental-Only Content: This information has been updated to the v2.X version of IC².

EU - Energy Unit is the measure of energy used by IC2. It is most similar to the SI derived unit Joule. EUs are 'produced' by generators, transmitted along cables, stored by mobile units like an RE Battery or by stationary units like a batbox, and 'consumed' by various IC2 machines.

EU is not related to Redstone signal, but some machines can be affected by redstone signals, and a Detector Cable produces a redstone signal if there is any EU passing through it.

Some machines allow a lever to be mounted directly on it.

Raw EU values are directly used to measure the capacity of energy storage items or blocks.


The "amperage" in IC2 E-net.

EU/t means Energy unit per tick. It measure how fast EU is being produced or consumed. It is a derived unit of energy over time, similar to the SI derived unit Watt.

To measure the average EU/t transferred through a wire over time an EU-Reader can be used. Right-click with it on a cable it will begin the measurement.

EU/t transfer can also be observed by the rate of change in EU capacity displayed by storage devices and malike the batbox.

Minecraft normally operates at 20 ticks per second, unless you are experiencing server lag. Therefore, under no lag conditions, the rate of EU/sec is 20x EU/t.

Machines and cables will explode if they are exposed to too much EU/t. This differs from the old system, where there was a separate "voltage." In the current system, voltage and EU/t are the same thing.


Note: the contents in this section isn't yet approved by an IC2 developer. They might be incorrect.

The "voltage" in IC2 E-net.

EU/p means Energy unit per packet. In IC2, EU is always being carried in cables in "packets", which is just a bunch of EU traveling together in the same time. There is a packet size, which determines how many EU travels together at a same time. The maximum packet size determines the voltage. EU storage blocks only send out 32EU/p, 128 EU/p, 512 EU/p and 2048 EU/p depending on its tier, while generators can send out varying packet sizes.

Types of Voltage

The amount of EU/p is relative to the voltage level. In IC2, voltage is categorized into 5 levels:

Types of EU Levels EUP Size
Low Voltage 32 EU/p or lower
Medium Voltage 33-512 EU/p
High Voltage 513-2048 EU/p
Extreme Voltage 2049-8192 EU/p
Insane Voltage >8192 EU