Kerala State Electricity Board commenced functioning on 31 March 1957 afternoon as per order no.

All the staff belonging to the erstwhile Electricity Department was transferred to the Board.

The Central Government had approved the continuation of KSEB as a State Transmission Utility & Licensee only up to 24 September 2008.

About 25% of the energy requirement is being met from hydel plants owned and operated by KSEBL.

KSEB Ltd distributes electricity in the State of Kerala except in the administrative region of Thrissur Municipal Corporation and Munnar (Kannan Devan Hills).

Kerala State Electricity Board tariff consists of different components.

KSEB follows a slab system in which a consumer using up to 250 units per month will have a telescopic tariff.

After 250 units, the billing will be "non-telescopic", which means the slab rate will be applicable for the entire electricity consumed.

[5] The following table shows the electricity tariff for domestic consumers For three-phase customers having a monthly consumption up to 100 units, the fixed charges are set as Rs 90 and Rs 100 for up to 250 units.