Energy System Created but need help with one thing

[jamesc554544]

I have been trying to make my energy system for my mod and i have succeeded in doing so but at the moment i have my generator just pulling energy out of its ass, i have added a gui and i have been working on the container but i cannot seem to be able to get it to just use fuel like a furnace but instead of smelting it produces some energy

 

Any help would be amazing thanks! 

[sudwood]

I'm currently kind of busy and unfortunately can't stay around to help, but here is a link to the tile entity of my generator for my custom energy network. https://github.com/Sudwood/Mystic-Additions/blob/master/com/sudwood/mysticadditions/tileentity/TileEntityMysticRedGenerator.java hope this helps a little, I tried to explain what does what in the comments.