Tenaga Nasional Berhad

The Tenaga Nasional headquarters in Bangsar.
Company type	Publicly traded state-owned enterprise
Traded as	MYX: 5347
ISIN	MYL5347OO009
Industry	Electric power industry
Predecessor	Central Electricity Board (CEB) National Electricity Board (NEB)
Founded	1 February 1990; 34 years ago (1990-02-01)
Headquarters	Kuala Lumpur , Malaysia
Area served	Malaysia (except Sarawak), United Kingdom, Ireland, Turkey, Kuwait, Saudi Arabia, Pakistan, India, Cambodia, Australia
Key people	Tan Sri Dato' Abdul Razak Abdul Majid (Chairman) Datuk Ir. Megat Jalaluddin Bin Megat Hassan (President)
Services	Electricity generation, transmission and distribution
Revenue	RM53.07 billion (2023)[1]
Operating income	RM7.36 billion (2023)[1]
Net income	RM2.77 billion (2023)[1]
Total assets	RM204.74 billion (2023)[1]
Number of employees	34,543 (2023)[1]
Parent	Khazanah Nasional (22.6%)[1] Permodalan Nasional Berhad (18.3%)[1] Employees Provident Fund (Malaysia) (16.8%)[1] Retirement Fund (Incorporated) (7.5%)[1] Foreign Shareholdings (12.5%)[1] Local Corporations & Retail (20.6%)[1] Other Government Agencies (1.7%)[1]
Subsidiaries	TNB Genco Malaysia Transformer Manufacturing (MTM) TNB Integrated Learning Solution Allo Technology TNB Research TNB Engineering Corporation TNB Renewables Universiti Tenaga Nasional TNB Energy Services Sabah Electricity Tenaga Switchgear
Website	www.tnb.com.my

Tenaga Nasional Berhad (lit. 'National Energy Limited', abbreviated as TNB; TENA, MYX: 5347), also known as Tenaga Nasional or simply Tenaga, is the Malaysian multinational electricity company and is the only electric utility company in Peninsular Malaysia and also the largest publicly listed power company in Southeast Asia with MYR 204.74 billion worth of assets. It serves over 10.16 million customers^[1] throughout Peninsular Malaysia (except Sarawak)^[a] and the East Malaysian state of Sabah through Sabah Electricity.

TNB's core activities are in the generation, transmission and distribution of electricity. Other activities include repairing, testing and maintaining power plants, providing engineering, procurement and construction services for power plants related products, assembling and manufacturing high voltage switchgears, coal mining and trading. Operations are carried out in Malaysia, (except Sarawak), United Kingdom, Ireland, Turkey, Kuwait, Saudi Arabia, Pakistan, India, Cambodia, and Australia.^[1] TNB also offers higher education through its university, Universiti Tenaga Nasional (Uniten). TNB also exports electricity to Singapore via a partnership between its subsidiary TNB Power Generation Sdn Bhd and YTL PowerSeraya Pte Ltd.^[2]

TNB is one of the 10 companies under Khazanah Nasional, Malaysian sovereign wealth fund and also one of the 13 Malaysian companies listed on the Forbes Global 2000 in 2018.^[3] TNB is ranked 16th globally in Brand Finance: Utilities 50 2021 Ranking^[4] and 230th globally in 2023 Bentley Infrastructure 500.^[5]

The Lembaga Letrik Pusat (Central Electricity Board, CEB) was established and came into operation on 1 September 1949. The Board was to become heir to three major projects considered by the Electricity Department following its re-establishment in April 1946 which were the Connaught Bridge Power Station, Cameron Highlands Hydroelectric Project and the development of a National Grid. CEB eventually became the owner of 34 power stations with a generation capacity of 39.88 MW, including a steam power station in Bangsar with a capacity of 26.5 MW, a hydroelectric power station at Ulu Langat with a capacity of 2.28 MW, and various diesel powered generators with a total capacity of 11.1 MW.^[6]

On 22 June 1965, Central Electricity Board (CEB) of the Federation of Malaya was renamed the Lembaga Letrik Negara (National Electricity Board, NEB) of the States of Malaya. By the 1980s, the Board was supplying the whole peninsula with electricity, replacing the Perak River Hydro Electric Power company (PRHEP) and its subsidiary Kinta Electrical Distribution Co. Ltd (KED) in 1982, Penang Municipality in 1976, and areas supplied by Huttenbach Ltd in 1964, which included Alor Setar, Sungai Petani, Kulim, Lunas, Padang Serai, Telok Anson, Langkap, Tampin and Kuala Pilah.

On 4 May 1988, Prime Minister Mahathir Mohamad announced the government's decision on a policy of privatisation. Two pieces of legislation were passed to replace the Electricity Act and to provide for the establishment of a new corporation. Tenaga Nasional Berhad (TNB) was formed in 1990 by the Electricity Supply Successor Company Act 1990, to succeed the National Electricity Board (NEB) of the States of Malaya.

The board of directors is responsible for governing and setting policy for TNB, consisting of 13 members: 6 independent non-executive directors, 5 non-independent non-executive directors, an executive director, a TNB chairman/CEO and its president. The company's professional management team consists of 14 members.

TNB Power Generation Sdn Bhd (TNB Genco) owns and operates thermal assets and hydroelectric generation schemes in Peninsular Malaysia. In the peninsula, it has a generation capacity of 16,283MW.^[1]

Plans to expand its generation capacity include increasing hydroelectric generation by 2015^[7] and commissioning the first nuclear power plant in Malaysia by 2025 if the government decides to include nuclear as an acceptable energy option.^[8] In 2021, Tenaga became part owner of the repowered Blyth Offshore Wind Farm in England.^[9]

The TNB Group has a complete power supply system, including the National Grid which is energised at 132, 275 and 500 kilovolt (kV), with its tallest electricity pylon in Malaysia and Southeast Asia being the Kerinchi Pylon located near Menara Telekom, Kerinchi, Kuala Lumpur. The National Grid is linked via 132 kV HVAC and 300 kV HVDC interconnection to Thailand and 230 kV cables to Singapore.

TNB, through its subsidiaries, is also involved in the manufacturing of transformers, high voltage switchgears and electrical cables, consultancy services, architectural, civil and electrical engineering works and services, repair and maintenance services and fuel undertakes research and development, property development, and project management services.

The Distribution division conducts the distribution network operations and electricity retail operations of TNB. The division plans, constructs, operates, performs repairs and maintenance and manages the assets of the 33 kV, 22 kV, 11 kV, 6.6 kV and 415/240 volt in the Peninsular Malaysia distribution network. Sabah Electricity provides the same function in the state of Sabah.

To conduct its electricity retailing business, it operates a network of state and area offices to purchase electricity from embedded generators, market and sell electricity, connect new supply, provide counter services, collect revenues, operate call management centres, provide supply restoration services, and implements customer and government relationships.^[10]

Since its privatization, the corporate slogan of TNB is 'Penggerak Kemajuan Negara' or Powering the Nation.^[11] Since 2013, the company has adopt new corporate slogan campaign, 'Better. Brighter'.^[12]

• Electricity sector in Malaysia
• National Grid, Malaysia
• Sabah Electricity
• Sarawak Energy

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