Here an impression of my fusion facility:
What you're seeing (description taken from the second picture):
(1) The processing array clusters (8 each) in the background make hydrogen from water (right) and deuterium from hydrogen for the tritium production (left).
(2) The processing array clusters (2 each) in the tokamak ring make deuterium from hydrogen for directly feeding the reactor (right) and tritium from deuterium for feeding the reactor (left).
(3) The four transformer/battery clusters feed the reactor's 16 energy hatches. I'll only need one of the clusters for power generation, the others are needed for making metals in endothermic processes. Since the reactor does not generate power with endothermic processes (naturally), there are enough battery buffers for 32 lapotronic energy orbs. Using more than 16 requires a cable upgrade though, and anyway at the moment I have only 10 - these things are expensive and each of the processing arrays has one built-in.
(4) In the background there is the plasma generator. I am aiming for not more than 100% efficiency so I won't need to make a ZPM dynamo hatch and a set of added transformers. I haven't actually built the turbine rotor yet - tungsten rotors have 105% efficiency and just the right stats but I don't want to upgrade to the next tier just for 5% more power.
(5) The three cables going up to the ceiling will go away after the reactor is activated. They supply a small part of the processing arrays with power from my current grid. One cable going off the turbine will replace them.
BTW: which madman came up with the recipe for blue steel? I had to add ten crafting patterns to my ME network just for that.
Could you tell me how many machines you're using? I did some calculation on a piece of paper (always do that for big projects ) and came up with 160 lv centrifuges for deuterium, 32 mv centrifuges for tritium and 19 lv electorlyzers for hydrogen.