Ethics investigates normative questions about what people ought to do or which behavior is morally right. See: https://en.wikipedia.org/wiki/Ethics
Ethics is particularly relevant to energy engineers in the context of Conflicts of Interest.
Engineering Codes of Ethics
AEE Codes of Ethics
https://www.aeecenter.org/aee-certifications/aee-codes-of-ethics/
NSPE Code of Ethics
See: Ethics
Training / AB 1234
In your career as an energy engineer, you may serve on a public board or committee and be subject to California AB 1234. People subject to AB 1234 must complete at least two hours of ethics training every two years. This training covers general ethics principles and laws relevant to public service.