Hmmm...I'm well in my 40's and I doubt I will have a problem landing a job at any utility, either generation, transmission, or distribution, because I do know my fundamentals, yet take my job seriously and don't come in with some "know-it-all-give-a-shit" attitude.
I'm good, but I've never thought my shit didn't stink, DUmmies. Maybe you should try a similar approach. Interviews are to determine how well YOU fit THEIR needs, not the other way around.