If you don't listen to them when they happen (sometimes you can find a link to an audio replay), you'll have to wait for transcripts to be posted on the web at a later date... sometimes it's months later. So, here's a rundown on what I've been able to run down...
AEP's Earnings Call is scheduled for 9 a.m. on January 28 (that's tomorrow). See this link to listen live.
Allegheny Energy is being a bit cagier with their information. The only reference I have been able to find says their earnings call is scheduled for January 31 at 18:00 (6:00 p.m. - what an odd time for an earnings call!) It's almost like they don't want you to listen in and take notes and hear the questions they will be asked by their investors...
Gosh, I wonder why?