Wind turbines can be built on Maraxsis while it is an ocean planet underwater.

Hmm, this one is complicated. A turbine can in principle work underwater, but... Anyway, I will get back to you on the issue, once I have pondered on it.

Yeah turbines can work in water, but they are specialized for that. Wind turbines are not designed to work in water.

Yeah, that is a good point, especially considering that the ocean on Maraxsis is very deep (probably 1 km, if the pressure is 200000 hPA and gravity is 20 m/s²). Even specialized turbines could barely endure that kind of pressure, it seems, and their design must be different for optimal efficiency. And even if the sunlight could be efficiently absorbed by the ocean to drive a thermohaline cycle producing deep currents, these would be very slow, especially since the planet would have low surface temperature differentials from its uniformity (only ocean, with no ice on poles) and "runaway greenhouse effect" (according to lore). So it makes sense for them to just not work at all on Maraxsis (of course not within the pressure domes either!).

Practically speaking, Factorio restricts the building of entities according to surface conditions (like solar power, magnetic field, pressure and gravity). I have just uploaded v1.2.8, in which pressure is required to be 100-10000 hPA, and gravity 1-100 m/s², as a general solution. Does this seem reasonable to you?

I don't know, it up to you to choose, but for me it seems to be a good solution.

I don't know, it up to you to choose, but for me it seems to be a good solution.

All right. Maybe I will find a more sophisticated solution in the future, but I feel that this will do for now.

The best solution would be to enable it to be built only inside pressure domes, like it is currently the case for many buildings.

I actually disagree! Realistically, there would be no wind to speak of within that confined space. Wind turbines would not work at all.

Yeah it's also what I thought, so yeah better to fully disable it from Maraxsis.

Aight.👍 (It can be hard to decide on how realistic things should be in games or mods, which don't always make sense themselves. Solar panels work perfectly well on Maraxsis, at the bottom of the ocean!)