Journal Petir is a scientific journal published by STT-PLN Department of Information Engineering since 2007, as a media for disseminating research results, Library Study Technique, Observation Result, Surveying Survey, STT-PLN Department of Informatics Engineering and Supporting Science Development Knowledge and Technology Journal Petir is published twice a year in March and September and contains research results in the field of Informatics Engineering in the field of Electric Power, Telecommunication, Control System, Electronics, Computer Systems and Information Systems.