'''Tenaga Nasional and also the largest power company in Southeast Asia with RM60.0 billion worth of assets serving over six million customers throughout Malaya and the eastern state of Sabah. TNB's core activities are in the generation, transmission and distribution of electricity. TNB is ranked 10th in FTSE/Asean 40 Index , with market capitalisation of US$9.2bil.
TNB was formed in 1990 by the Electricity Supply Successor Company Act 1990, as the successor of the National Electricity Board of the States of Malaya (''Lembaga Letrik Negara Tanah Melayu'').
To date, TNB remains a major player in electricity generation which form a significant part of the Group's diversified range of business activities.
Currently, the TNB Group has a complete power supply system, including the
National Grid which is energised at 132, 275 and 500 kV. The National Grid is linked via 132 kV HVAC and 300 kV HVDC interconnection to Thailand and 230 kV cables to Singapore. For the convenience of customers, Customer Service Centres, Call Management Centres and administrative offices throughout the
Peninsular Malaysia and
Sabah . A 5-digit common toll-free number (1-5454) facilitates fault reporting and service requests to the CMCs.
TNB, through its subsidiaries, is also involved in the manufacturing of transformer, high voltage switchgears and cables the provider of professional 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. TNB also offers higher education through its university — University Tenaga Nasional (
Uniten ).
The TNB Group has a generation capacity of 11,296
MW . TNB generates electricity mainly from two major types of plant;
Hydroelectric plants and
Thermal plants
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There are 3 hydroelectric schemes with installed generating capacity of 1,911 MW with 21 dams in operation
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Sungai Perak hydroelectric scheme, with 1,249 MW installed capacity:
Terengganu hydroelectric scheme, with 400 MW installed capacity:
Cameron Highlands hydroelectric scheme, with 262 MW installed capacity:
There are 6 major thermal power plants with installed generating capacity of 4,435 MW in operation, plus 3 thermal plants with 4,950 MW operated as IPP plants.
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- Sultan Ismail Power Station , Paka , Terengganu- 1,136 MW, gas fuel.
- Connaught Bridge Power Station , Kelang , Selangor - 832 MW, gas fuel.
- Tuanku Jaafar Power Station , Port Dickson , Negeri Sembilan - 715 MW, gas and oil fuel.
- Sultan Iskandar Power Station , Pasir Gudang , Johor - 729 MW, gas and oil fuel.
- Serdang Power Station , Serdang , Selangor - 625 MW, gas fuel
- Gelugor Power Station , Teluk Ewa , Pulau Pinang - 398 MW, gas fuel
- Manjung Power Station , Lumut , Perak - 2,295 MW, coal fuel
- Sultan Salahuddin Abdul Aziz Shah Power Station , Kapar , Selangor - 2,420 MW, gas, oil, coal fuel
- Liberty Power Station , Sindh , Pakistan - 235 MW, gas fuel
