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Alrighty, time to actually run out some Turbofuel.
The first line here actually gets a small splice off to package and upload to the Dimensional Depot.
Then it feeds the little mini-building of 3 Fuel Generators.
Then, the builiding of 13 Fuel Generators.
Then, the first 7 Fuel Generators in the giant generator building.
The whole line is structured as one single long run, with a small splice off for each generator. No complicated forking or balancing needed. Hopefully, this prevents any weird backflow issues from arising.
And that's a full 1/3 of the plant running at 100% efficiency.
On the plus side, the generators themselves are the same. You wouldn't need to rework those, except to increase the number. Overclocking the generators can help there too if you aren't doing so already.
Ionized isn't worth it unless you need a way to sink power shards in a complex end game setup. It takes a got bit of power to make. Also supposedly one of the best fuels for the jetpack. Once you get some alt recipes (Heavy Oil Residue and Diluted Fuel) you can really make your crude stretch, and it's not really the limiter. My first retro fit was from Turbo Fuel to Nitro Rocket Fuel, and now I am in the middle of moving to Heavy Oil Residue -> Diluted Fuel -> Nitro Rocket Fuel. I have more crude oil than I can use now, and am limited by sulfur/coal/etc.
Given all of that, yes, making a separate plant might be a good plan.
This whole plant is tuned to be evenly overclockable, so yeah, expansion would mean needing more generators.