Nice design Shneekey, saw it on the ic2 forums and have been using it in my let's play for a couple of weeks (2 tier producing 1440eu/t) and it works great
I'm using BC Silicon and Advanced Power Management for the redstone control.
View attachment 7670
First off, that is an amazing application of the design! It is not only functional, it also looks amazing.
Second, there's a slight design flaw here which is preventing you from actualizing the full EU/t output possible.
From watching your video, you are using an MFSU to act as a gate trigger. When it is full, it turns off the reactor. This MFSU then sends energy to the other three. Unfortunately, this ALSO means it is throttling your EU output to 512/t.
You're going to need a two-tier gate design to fix this problem. Allow me to explain:
First off, get rid of the MFSU directly attached to the tower. It's your choke-point. Then you're going to run structure pipe down to your three MFSU's. Put a gate on each one that outputs red pipe signal if there is space to store energy, leave the gates on the reactors alone (red pipe signal -> redstone signal).
Now if ANY of the three MFSU's have room for power, it will output energy. If all three are full, however, it won't.
This will permit your MFSU's to fill much faster because all 1440 EU/t is hitting the terminal MFSU's rather than being throttled to the 512 EU/t that the single MFSU can output.