Reading some other posts on here it sounds like it is varies between utilities. I know a few members said their utilities have taken kids right out of high school. So this is dependent on the utility, I am taking the POSS on Tuesday and have interned with Exelon and that's how I have gathered all of my information. Another issue that Exelon (I am sure other utilities are as well) is having is finding enough qualified candidates that can pass their required tests (Exelon has both POSS and BSME), so my guess is... If you have any previous operations experience, college science courses, and/or Navy experience (especially navy nuke) and can pass the POSS; there is a very good chance you will get a chance to at least interview. I would focus on the POSS more than anything, I have been studying ASVAB and GRE/GMAT Math workbooks and then I used an online stop watch to time myself on taking the supplied practice POSS. This is critical to learn the pace that is needed to keep up with the time requirements. Best of luck and have more confidence, you will be fine!