Training activities were streamlined in KSEBL with a starting of
- Line Man Training Center at Kottayam and at Thrissur in 1979.
- Line Man Training Center at Thiruvananthapuram and at Kozhikode in 1987.
- Power Engineers Training and Research Center (PETARC) at Moolamattom, Idukki in 1989.
- HRD Cell at Vydyuthi Bhavanam, Thiruvananthapuram in 1992.
- All Lineman Training Centers upgraded as Junior Executive Staff Training Centers (JESTC) in 1994.
- JESTC upgraded as Regional Power Training Institute (RPTI) in 2006.
- Southern Region Computer Training center (SRCTC) at Vydyuthi Bhavanam, Thiruvananthapuram in 2007.