Post the Electricity Act 2003, The GoWB divided the erstwhile West Bengal State Electricity Board (WBSEB) into two functionally independent state-owned companies, West Bengal State Electricity Transmission Company Limited (WBSETCL) and West Bengal State Electricity Distribution Company Limited (WBSEDCL), with effect from 01 April 2007.

WBSETCL is responsible for transmitting electricity from generating sources to load centres through a transmission network operating at 400kV, 220kV, 132kV and 66kV spread across West Bengal.

WBSETCL is currently playing three distinct functional roles envisaged under the Electricity Act 2003

   • The State Transmission Utility (STU) provider
   • A Transmission Licensee (TL)
   • The State Load Dispatch Centre (SLDC).