Underwater energy storages provide 6,000 energy storage. Good for banking energy for building projects, buffering against supply shortfalls, and ensuring adequate power for your Commander's D-gun and other weapons that use energy to fire.

If destroyed, it deals 670 damage in 340 AoE—but if self-destructed, it instead deals 2,000 in 480 AoE. Consider setting these like underwater bombs to catch unwary naval targets off guard.