I was playing in my Singelplayerworld.
I was at the beginning with one generator and all most-needed machines, electric furnace, macerator, extractor, compressor, canning machine, one batbox between the generator and the machines.
The batbox was empty.
I put the superbiofuel, made of three biofuelcells and three gunpowder, into the generator, while all other machines were operating.
I left too go do other things.
As i came back the batbox was full, the generator was full and the machines were finished working.
So more than 44000 EU were generated by only 1 superbiofuel.
Also i might have left the chunk while it was processing if this could have an effekt.