I was wondering that maybe those a lot knowledgeable in this game than me can give an answer to my question.
So, if you build an electrolyser setup in which you completely eliminate the "Max Gas Pressure" negative state of the electrolyzer, that is it should be running constantly at max efficiency, for some reason it does not, thus cannot constantly provide those output numbers provided in its description.
From my other post:
This means "that it is not possible to produce more oxygen with an electrolyzer than cca. 500 kg/cycle on a constant rate, which is 833.33 g/s instead of 888 g/s as stated in the description of the electrolyzer.
I don't know if this is on purpose or not, but it is due to an unknown RNG (?) factor which causes the electrolyzer to use 666.7 g/s water instead of 1000 g/s from time to time without any apparent reason. I could not find anything in correlation with this random change and there is no indication on the electrolyzers info page (see picture)."
The theoretical max output of an electrolyser should be 532.8 kg/cycle. Maybe this is on purpose so it is never 100% efficient? But then again, there are other equipment in the game that can be 100% efficient.
Rest of the post:
Anyone any guess why the water usage of the electrolyser changes from time to time without any indication?
edit1: Yes, the electrolyser have constant, full water supply.