As I know mod "Plutonium Energy" compatible with mod "Atomic Artlillery".
Proof: in the mod files "Plutonium Energy" there is a file "plutonium-atomic-artillery-shoot-map-visualization.png"
A year ago, when I installed these two mods together, they worked correctly, and in the game, after a certain technology, it was possible to craft a plutonium artillery shell.
The problem is that when installing these two mods, the plutonium artillery shell disappeared from the game, and it cannot be crafted even in sandbox mode. Reinstalling both mods didn't help. I read other discussions, it didn't help either, maybe I misunderstood something, so I apologize.