Penance: A Young Adult Superhero Novel by Paula Richey
First book in a series but has a story of its own.
Penance, in the power of the criminal Acid as she has been for many years, is ordered to use her electric powers to attack a superhero. On another planet, Kail ip ibak faces sabotage in his supply mission, and stages a raid on Earth to get replacements. Penance, because of the consequences of the order, ends off facing off with him.
It involves an inside man, a cuttlefish, the importance of water, a jailbreak where the two people responsible do not have a common language, kidnapped women, a boy who wants to be a soldier, a pond with pond scum, Penance and Kail deducing a plan, and more.