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****General instruction to Public regarding effecting of electricity service connections within a day to the Domestic and Commercial buildings           ****KIND ATTENTION LT ELECTRICTY CONSUMERS-Make payment of LT Electricity Bills only through TANGEDCO Section Office Counters/E-seva centers of GoTN/Post Offices/Branch Counters of 3 banks viz., City Union Bank(CUB), Lakshmi Vilas Bank (LVB) and Tamilnad Mercantile Bank (TMB). Also through ATM of TMB. Online payment only through www.tangedco.gov.in. Payments not to be made through unauthorised agent/Website so as to avoid disconnection of electricity supply for non-payment of EB Bills”.           For Power Failure in Chennai city - Contact: 1912 for BSNL users, 0441912 for non-BSNL users          


First cascading hydro-electric scheme – Kundah in the Nilgiris

This cascading hydro electric scheme consists of 5 power houses . It was developed with Canadian aid and was put into operation stage by stage from 1957 to 1964




First Barrage type Power House

Four Barrage type Power Houses each 2 x 15 MW were developed and commissioned during the year 1987-1989 across Cauvery river between Mettur and Bhavani. The Power Houses are located in the river bed itself


mparai Pumped Storage Hydro Electric station ( 4 x100 MW)

The Kadamparai Pumped Storage Hydro Electric station (4 x100 MW) in Coimbatore District was commissioned in the year 1986 and is the first of its kind in the country to operate both in generation and pumping mode since 1987. In this Power House the off peak energy is utilized to pump water to the upper reservoir and during peak hours the Power House is put in generation mode.



First Gas Insulated Substation

In 1998 the first 230 KV Gas Insulated switchgear substation in the country was commissioned at Mylapore, Chennai. This was supplied and erected by M/s Merlin  Gerin , France


Commissioning of 230 KV Transmission line



In 1960 TNEB commissioned 173 km long Kundah – Salem 230 Kv transmission which was the first 230 Kv network in the country




SCADA project

       SCADA (Supervisory Control and Data Acquisition System) of Chennai Distribution Control Centre is the first in the country and it remotely controls all distribution substations in Chennai City. 

stressed Concrete poles

      The technology of prestressed concrete was developed in the 1960s.  TNEB was a    pioneer in setting up a PSC pole yard at Samayanallur near Madurai in 1970.


Power line Carrier Communication (PLCC) in Grid Operation 


TNEB is the pioneer in India in introducing PLCC system for its own communication requirements. PLCC system utilizes 66/110/230/400 Kv transmission lines as the medium for communication. PLCC provides for limited channels for speech communication, low speed data communication (200 bps) and protection tripping. In 1960 PLCC sets and protection couplers of Brown Boveri Corporation , Switzerland make were put into service in 66 stations.


First state to achieve 100 % Village Electrification

Tamil Nadu is the first state in the country to achieve 100 % electrification of all    villages as early as 1992

Power Engineers Hand Book



      The Power Engineers Hand Book published by TNEB Engineers Association is well recognized among the practising Electrical Engineers of the country. The Hand Book has its origin in the year 1947. The sixth enlarged version was released in 2002.