Tamil Nadu Electricity Board (abbreviated as TNEB) is a power generation and distribution company owned by

Government of Tamil Nadu The Government of Tamil Nadu () is the administrative body responsible for the governance of the Indian state of Tamil Nadu. Chennai is the capital of the state and houses the state executive, legislature and head of judiciary. Under the Const ...

, India. It was created as a regulated

monopoly A monopoly (from Greek language, Greek and ) is a market in which one person or company is the only supplier of a particular good or service. A monopoly is characterized by a lack of economic Competition (economics), competition to produce ...

under section 131 of the Electricity Act (2003) as a successor of the erstwhile Tamil Nadu Electricity Board.} It is the largest State Electricity Board (SEB) in the country in terms of number of consumers (30.75 million as of 31 March 2020).

History

TNEB was formed on 1 July 1957 as the Madras State Electricity Board according to the Electricity Supply Act of 1948 as a successor to the erstwhile Electricity Department of the Government of Madras under the authority of the Department of Power. It was responsible for electricity generation, distribution and transmission, and it regulated the electricity supply in the state. Later it was renamed Tamil Nadu Electricity Board. In October 2008, the

decided to divide TNEB into two subsidiaries. On 1 November 2010, TNEB Limited became a holding company with two subsidiaries, Tamil Nadu Generation and Distribution Corporation Limited (TANGEDCO), responsible for power generation, and Tamil Nadu Transmission Corporation Limited (TANTRANSCO), responsible for

power transmission Power transmission is the movement of energy from its place of generation to a location where it is applied to perform useful Mechanical work, work. Power (physics), Power is defined formally as units of energy per unit time. In SI units: :\text ...

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* {{authority control Companies based in Chennai State electricity agencies of India Government agencies established in 1957 Electric power companies of India Government-owned companies of India Energy in Tamil Nadu 1957 establishments in Madras State Indian companies established in 1957 ta:தநாமிவா நிறுவனம்