Hey,
At first you have an awesome mod already. I think there is only one missing thing there - upgraded version of Thaumcraft Vis Generator. I like both TC and AE2 and I'm planning to make custom modpack without other tech mods, but using just standard Vis Generator makes it uncomfortable, because they sucks all Vis from my chunks, when there is a big AE system. I know that I can move some of them further, but i don't want to do it. There is a chance that you will add an upgraded version in the future? There should be a device which have bigger range for vis sucktion (similar to workbench charger) and something generating energy from essentia (or other sources, but related only with Thaumcraft).
Thanks for your whole work.

We have not decided to port the Essentia Vibration Chamber to this version, but it sounds like what you are looking for.
The EVC converts either Ignis or Potentia directly into AE power.
It was not designed to sensibly power a very large and active AE network continuously, but could be used to augment another power source, or charge cells while the network was idle.
At one time I had planned a multiblock Arcane Reactor(#92), however life happend and I never got around to it. Where the goal of the reactor was to produce a scalable amount of AE power at the cost of some build complexity and advanced control automation.

Just a wider area Vis Generator with a little higher efficiency (oc. crafted by infusion) will be enough, really. Your mod is the best to implement that. Energy from potentia/ignis makes coal/charcoal needed to generate energy what I would not like (too similar to rest of tech mods and really annoying when dealing with flux).