im still relatively fresh (3 years) out of college and my job entails a lot of power calculations, so I had most of the material fairly well understood
I went over the designated practice exam
and i used this book as a reference and did the practice exam inside it: Electrical Engineer's Guide...
Electrical Engineer's Guide to Passing the Power PE Exam - Spiral Bound Version (Spiral-bound) : https://www.amazon.com/gp/product/0988187612/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
To those who failed:
I took it first time and passed, this is what I used:
The designated sample exam that you can buy from NCEES
Electrical Engineer's Guide to Passing the Power PE Exam - Spiral Bound Version (Spiral-bound)...
the exam day in baton rouge was a miserable rain storm most of the day
only fitting that they make us even more miserable by taking longer than previous sessions to release results