As of August 2011, KEPCO possesses an A+ credit rating with Fitch Ratings, while Moody's has assigned KEPCO an A1 stable rating.
Hingga Agustus 2011, KEPCO memiliki kredit rating A + dengan Fitch Ratings, sementara Moody telah menetapkan KEPCO sebuah A1 Peringkat stabil.