Pros
High salaries. Could do literally nothing at work all day and still get paid even if your management knows.
Cons
There is literally no training for engineers in transmission. These are largely desk jobs and even in the year I worked there I saw multiple entry level employees join the team and they received zero training from management. They were expected to lean on a “mentor” who very often wanted nothing to do with them (because helping new people would interfere with them just sitting around all day). Next time your power goes out just think about that substation down the road being designed by a 24 year old who read a couple of specifications and manuals (also poorly written often by “academic” types who have never done the actual job of designing one) without any help from people who may have the experience. Management HEAVILY pushes leaning on contractors. You are extremely encouraged to farm out your work to any number of contractors AEP has on the payroll. This led to a lot of employees just sitting around or keeping the easy projects and letting the difficult ones go to even more incompetent contractors. Management does not care about their workers. They never took even halfway serious steps towards solving problems brought to them by their employees. One second level manager even shared emails between employees to the entire group without their permission to point out what they did right or wrong. I extremely regret ever taking this job and would warn everyone away from working at AEP especially as an engineer in transmission.