Well-Founded Definition of Electrical Energy

I am currently working on an academic project and would like to request a well-founded and formal definition of electrical energy. I’m especially interested in definitions that are not only conceptually clear but also supported by a solid theoretical or scientific framework.

Could you please provide a reliable bibliographic source—such as a scientific article, physics textbook, or academic publication—that includes this definition? Ideally, the source should be cited in APA style or provide enough information for me to cite it properly.

Thank you in advance for your help.