What?
I have max good building limited by "people" on Jupiter.
And i am always coming for "0" with production. - 2-3 production a day for 8 hr. Never had problem with ore.
i have 12 good building in colony.
Jupiter:
Space Limited you should be able to fit ~15 Goods Buildings on Jupiter Colony with zero life support. *Might* have to give up one of them for credits.
With full life support it drops to ~10-11 Goods Buildings depending on which building (the higher pop small ones get hit harder by needing more pop and life support). Again possibly giving one up for better credits.
Goods buildings able to be ran at constant 4/8 hr cycles 24 hours a day with max ore (=~691/day) are 11.5 (i.e. getting on every time a fight is ready on all deposits).
With a more "reasonable" 8 hour frequency of map fights (i.e. when you get on to collect your goods buildings you also run your fights) on all deposits it drops to ~570 a day or 9.5 buildings.
With a forgiving 2x8 hr + 1x4 hr schedule on deposits and goods buildings it's ~517 ore/day for 10.3 goods buildings that can be powered.
With a 1x24 hr schedule on deposits and goods buildings it's ~414 ore/day for 10.3 goods buildings that can be powered.
This is in general somewhere between very tight in the fully supported situation to a small excess (if you're doing all the fights possible).
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Mars Comparison:
Space Limited you should be able to fit ~21 Goods Buildings without life support. (note that goods buildings make half the goods and require ~75% of the ore to run compared to SAAB+)
With full life support you should be able to fit ~12-13 Goods Buildings.
Full on no-life mining can yield 617 Ore per day, enough to run 13.7 Goods Buildings on 3x8 hr.
3x8hr mining & collecting can yield 530 Ore per day, enough to run 11.8 Goods Buildings.
2x8+4 hr mining & collecting can yield 467 Ore pre day, enough to run 12.3 Goods Buildings.
1x24 hr mining + collecting is ~346 Ore, enough to run 11.5 Goods Buildings.
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The difference is not as large as I remember it; I was on the 12 goods buildings in Mars (I didn't have the 4x4 goods boosts to potentially fit 13) and felt like ore was coming out my ears. But I guess it doesn't necessarily need a *large* excess to feel like that.
The ratio of extra goods buildings you *could* fit without life support *is* higher in mars (about 75% more without life support instead of 50% more in SAJM).
And where I did see some peoples 18+ Goods Building layouts in Mars I just took their assurance that ore wasn't a problem for them like that (but looking at the numbers now I figure probably they had built up a large ore surplus before switching to it and were just gradually wearing it down).
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This isn't a complaint about how much the colonies make - because the SAAB+ goods buildings put out twice the goods of the mars ones and thus easily exceed the mars colony in productivity with slightly less goods buildings. Just designing a colony layout for them seems like less of a fun puzzle and more an exercise in just slapping some stuff down and calling it good enough
Perhaps the reason for that impression is less about ore specifically though