EU

EU stands for Energy Unit and is the unit of energy used by IndustrialCraft². It is similar to the SI unit of the Joule. EU can be created through various IC2 generators. EU can be stored in various blocks and items including BatBox, Energy Crystal, BatPack, and many more. EU can be transported through cables to power various IC2 machines.

EU/t

EU/t means Energy Units per Tick. It is a derived unit that represents the energy transferred over time and is similar to the Watt. EU/t can be measured by an EU-Reader, giving the average EU/t flowing through a cable or block. EU will not flow if there is nothing to actively draw it.

EU-Packets

An EU-Packet (EUP or EU/p) represents a discrete unit of energy. All machines and cables accept a maximum packet size and many devices (such as transformers and energy storage units) will only output energy in specific packet sizes. EU-Packets come in varying magnitudes from 1 EU to 1 million EU. The average value of all EU-Packets traveling through a cable per tick is the same as EU/t.

Packet Sizes

Different types of Cable will only be able to handle a certain size of packet, represented in the following table:

Name	Packet Size	Emitted By	Cable
Micro Voltage	1-5 EU	Solar Panel , Water Mill , Wind Mill
Low Voltage	32 EU	BatBox, LV Transformer, Nuclear Reactor, Generator, Geothermal Generator, Advanced Solar Panel
Medium Voltage	128 EU	MFE Unit, MV Transformer, Nuclear Reactor, Hybrid Solar Panel
High Voltage	512 EU	MFS Unit, HV Transformer, Nuclear Reactor, Ultimate Hybrid Solar Panel
Extreme Voltage	2048 EU	Nuclear Reactor, Lightning Rod (with 4 HV Transformers), AES Unit
Ultra Extreme Voltage	1000000 EU	Fusion Reactor

Note: Cables are rated for specific packet sizes, or EU/p, not EU/t. Thus a single cable may deliver power to or from multiple machines, even if all accept or produce the maximum packet size for that particular cable.