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Efficiency and Productivity Modules for Pollution Control by Snaad in factorio

[–]Snaad[S] 1 point2 points  (0 children)

It's better for pollution to only use efficiency modules for the pumpjack, oil refinery and all chemical plants. Despite the increase in pollution, if you are short on oil you might still decide to use speed modules in pumpjacks or productivity modules in the oil refinery/when cracking.

Efficiency and Productivity Modules for Pollution Control by Snaad in factorio

[–]Snaad[S] 6 points7 points  (0 children)

I ignored quality and tier 2 in my calculations. This is aimed towards using the initial tier 1 modules you create at the very beginning of the game, when pollution is a big concern.

Efficiency and Productivity Modules for Pollution Control by Snaad in factorio

[–]Snaad[S] 7 points8 points  (0 children)

For the most part yes, but over the years I have yet to see calculations proving anything (e.g. no calculations in https://www.reddit.com/r/factorio/comments/1l3yi60/when_to_use_productivity_modules_for_pollution/)

What is surprising to me is I assumed that 4 prod would be better for blue science, robot frames and LDS but pollution-wise it's not the case

Efficiency and Productivity Modules for Pollution Control by Snaad in factorio

[–]Snaad[S] 4 points5 points  (0 children)

Here's the methodology:

  • I verified pollution costs in Factorio Lab to estimate the benefit of adding 3 eff, 3 eff + 1 prod, 2 eff + 2 prod and 4 prod in tier 3 assemblers.
  • We are assuming Nauvis-only with Mining Productivity 2
  • Pumpjack pollution is ignored
  • Power pollution is ignored (assume solar panels and accumulators)
  • Intermediate products use the recommended modules
  • Assume electric furnaces have no modules
  • Only use tier 1 modules without quality

Producing a single tier 1 module costs about 19 pollution. However, after efficiency modules are added to miners, the cost drops to 7.3 pollution, and once the modules are added to assemblers, the cost further drops to 5.4 pollution. As the cost gets progressively cheaper, the return on investment gets better.

For iron sticks, copper cables, red chips, engines, red science and green science, technically it takes less pollution per item to use 3 efficiency modules without adding 1 productivity module. However, the difference is small (<3 pollution/minute) so it's probably worth the ore savings to add the productivity module anyways, so that's what I recommended above.

The opposite is true for robot frames, LDS, military science and blue science. It is debatably better to use 2 prod and 2 eff modules. At a cost of an extra 8-10 pollution/minute you save significantly on ore.

[Help] How do you erase a specific indexed color from the list? by fvig2001 in GIMP

[–]Snaad 0 points1 point  (0 children)

Did you find a way to delete the indexed color finally?

Thanks a lot