First of all, tell me on what I can work (what u approve) and I will start doing it, (maybe I can do a github repository where u can visualize the code on develop and/or work with me)
For other:
New Texture: I'm working on, when i create something of good I will show it to u
Customizable settings:
I think that for two reason, first, I manually change the X variable:
control.lua line 62:
panel.temperature = panel.temperature + X*(0.85 - panel.surface.darkness)
because in a game I will try to do a mod pack pollution free, and I buff it a bit,
but I suppose that u had create an increment factor in the code that u use for increase heat every tick, maybe if someone want change it for his purpose, he can't without know coding
second, the possibility to disable the new steam turbines, why if someone play with other mods, like bob's power or other that have a lot of similar items, we can give the possibility to reduce redundant object.
Underground thermal conduit:
If u like it I will try studing how could be possible
Thermal solar panel entity union:
Look this mod, Modular building https://mods.factorio.com/mod/modular-buildings of staplergun.
This guy do a mod that when 2 object of same type is connected the game transform that in a single entity, when the game must update that object there's less entity in the game.
I think that we can do the same of a group of solar pannel placed one next to other, maybe with a defined group, like 2x2, 3x3... and the mod must update less object. We have that mod like a base example and maybe if the code is good we can adapt to our needs.
Solar tower:
I mean this https://www.energy.gov/sites/prod/files/xpower_tower.gif.pagespeed.ic.0_W2uxUvmt.jpg
I think isn't very difficult to doing, we can use the concept of proximity bonus of nuclear reactor, and create only heat that can be used like user prefer, but first of all if u like it i will work primary on the texture that missing
More powerful heat storages: Sorry if I was inaccurate, I don't mean to add a more powerful storage, but I know that exist a heat storage not created by salt but with a advance alloy, maybe try to create that alloy instead doing the storage only with salt could be add some gameplay to the mod.
Heated plate trap: I am pleased that u appreciate, I think a group of large plate like cement (that aliens will not focus) but when the aliens pass over it, inflict very low damage (scaling on temperature) over time, not enough for killing alien alone but helping doing it. I will look if there's something similar or I will study how do it.
Place all mod's items on a separate category in the various recipe tabs?