You can make ultimate solar panels in 7 minutes (if I recall my last benchmark) with the proper setup. I use a pure AE autocrafting setup to achieve that speed. And I only use one rolling machine per crafting recipe (one for advanced alloys, one for iridium alloy ingot).
Your possible bottlenecks are:
1. Industrial blast furnace - for making Silicon plates
2. Smelting - always use induction furnaces.
3. Macerating - while a pulverizer is faster than a standard macerator, always go for a rotary macerator.
4. Compressing - use a singularity compressor.
But that's not going to be your main problem.
It's going to be…Uranium. ~_~