I originally heard that SCE was hiring for interns through campus recruiting, and applied for a Business Effectiveness intern position.
After the resume drop, had the first interview on campus with an Electrical Engineer who had worked with the company for 20 years. General get-to-know-you questions, behavioral questions, and some questions about electrical systems and circuitry which I felt that the engineer threw in himself (I couldn't answer them as a non-engineering major, and I did apply for a business position).
That initial interview was in Oct 2015, and afterwards, I didn't hear back from them so I assumed that I didn't get the position.
Three months later in Jan 2016, got a call from the recruiter telling me that I qualified to move on to the final round interview for Reliability Strategy. This interview was on-site at SCE's Pomona location, and I interviewed with the hiring manager and two of his engineers. Also mostly a mix of the usual behavioral questions. Only the last two were not the usual, since it related to the position.