Uhm, we can already send 2048 packets, it's called a HV transformer that's redstoned. Over HV x4 cable. The batteries can't take that current though, so it's got to be converted down again. I don't know, unless you could hook up four MFSUs on the line at the other end. Before connecting it to power though, as less than 4 would likely blow up. I'm not even sure if it'd work.
Anyway, you could just place a LV transformer every 4 blocks of copper cable. Although that'd get tedious and expensive, but oh well.
For those new to it, which only recently included me. At first glance each upgrade in cable seems to reduce efficiency, but this is misleading. Higher voltage cables may lose EU twice as fast, but they carry 4 times more energy, so they're actually twice as efficient as the lower voltage cable. So gold cable is twice as efficient as copper, provided that a full 128 EU packet is sent. So HV cable would be 4 times as efficient with 512 EU per packet, or actually like 16 times more efficient than copper as long as you use redstoned transformers to bump it all the way up to EV(Extreme Voltage) at 2048 EU per packet.(HV cable can actually handle up to 2048 EU packets) This is what the HV transformer is for. Glass fiber can only handle 512 EU packets, but it's the most efficient of all, but really expensive.
The previous comments about the efficiency of high voltage cables aren't wrong, I think they might be missing the OP's point a little. His recipe is very light on materials. I believe he is thinking of Ultra-LV as a way to power semi-distant machines early in a IC2 world, as opposed to when the higher voltage cables are available.
I'm not saying that this makes his idea more or less valid, but it might help to discuss it on these terms.