I dunno if there is power loss in IC2 cables or not anymore. I operated under the assumption that there was (worst-case scenario).
Basic idea for IC2 power distribution/transmission is that you want to minimize the EU loss per meter (per block) of cable. The lowest-loss cable is the Glass Fibre cable, at 1 EU/m loss.
You can just used Glass Fibre everywhere and with each Solar emitting 2048 EU/t on a sunny day, who is really gonna notice if you lose a few EU's along the way?
However, let's say you need to send power over a long distance and the losses really add up... what you need to do is use a IC2 Transformer block and "step-up" your power supply to 8192 EU/t. Four solar panels at 2048 EU/t into one EV Transformer will result in an output of 8192 EU/t. Now you use your glass fibre cable to send the power to wherever it is needed. At the other end of the line, you place another EV Transformer, this time in step-down mode, and that will output four "packets" of 2048 EU/t, which you can then use to power your stuff normally - and don't forget, you have four packets every tick, so this can run four machines requiring 2048 EU/t each (like the Replicators).
So it really doesn't matter how you lay your stuff out. I put each of my solars right down on top of an MFSU, then I just connect all the MFSU's up. The solars keep each of the MFSU "batteries" charged up with a 40 million EU reserve of power to draw from, just an enormous power reserve. Far more than I think anyone could possibly use in Infinity modpack given the limited usage for IC2/EU power in the pack.
Oh, I should add that the person above is correct, you just need to run a cable to touch each solar panel in your image. They will transfer power to an MFSU below them with no cable needed, but they won't transfer power thru the other solar panels to get to the cable connection.