Industrialcraft 2

Industrial Craft 2 adds many new blocks that industrialize your Minecraft world. You can cross breed plants and Smelt, Macerate, Compress, and even Extract with the new machines. It also uses its own power called Energy Units, or EU. Tou can get this by using Solar Panels or a Generator. This mod is a great way to increase efficiency and speed up the game.

It is important to note that in order for Tekkit to work correctly on a server, the server owner must op the mod itself, by typing '/Op [industrialcraft]'. This is because the mod needs permission to interact with the environment.