Hello everyone. So that is my question: What does the energy of an electrostatic field mean? A more detailed description of my background or understanding will help you to provide an answer: The process to deduce such a thing is usually calculate the work done in order to bring charge configuration to its position. However I've asked my self, suppose a charge configuration has an energy of 1 MeV. What does that mean/imply? Morever, what does it mean that in such deduction the energy of "creating charges" was not considered? Try to answer first my first question, the others are just guides for your answers. Thanks everyone very much in advance.