Under normal circumstances, the resume template downloaded from the State Grid platform will do.

If you want to look good, you can make another copy, including: cover, basic information, hobbies, own advantages (written casually), practical experience (if you have been internship in substation power plant equipment factory, you will get extra points), employment recommendation form scanned by the school, transcripts issued by the school, various certificates and published papers. That's basically it.

Good luck with your application.