What's the plural form of electrostatic energy? Here's the word you're looking for.
Answer
The noun electrostatic energy can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be electrostatic energy.
However, in more specific contexts, the plural form can also be electrostatic energies e.g. in reference to various types of electrostatic energies
or a collection of electrostatic energies.