How to transfer power between dimensions at high rates (~N*512EU/t, where N is the number of panels and MFSUs you have hooked up), with a 3x2x(N+6) footprint:
(click for larger image)
Left to right: Row 1:Enderchest, Filter with empty lapotron, pneumatic tube (can be omitted, or replaced with an item detector), chest (to be used as a buffer), Transposer.
Row 2: 4 tubes with a Retriever (contains full lapotron) at the end.
Just make sure the tubes go to the top of the MFSU, and it should work on its own. Just add a timer and you're all set!
In the other dimension, do the same set up, but with empty and full lapotrons in swapped positions, and make the tubes go to the bottom of the MFSUs.
I made the MFSUs point down so any unsent energy can be routed to a Mass Fabricator (not shown). For bonus points, the mass fab's output will be sent to a factory that automatically builds more HV panels.
I built this in Forsaken's server, so the discharging station is located under THE GRID complex. I highly recommend checking it out if you haven't yet (PM him for the IP and modpack).