Using Ashen Wake, fusion grenade, on Siegebreaker and the mod is neither consuming the charges I've stored nor is it granting super energy. I also have Charged up and Supercharged mods active granting me a 5x charge. It did work once while hot swapping Ashen Wake off then throwing the grenade. Also, worked randomly on a kill after an enemy died from a sunspot. It took the charges but did not grant super energy.