One of the core business divisions of TNB, the Generation Division is entrusted to develop, operate and maintain TNB’s portfolio of power generating units. The Generation Division has thermal generation assets and major hydro-generation schemes in Peninsula Malaysia and one IPP operating in Pakistan.
Supply Of Electricity
TNB customers are connected with power from hydroelectric and thermal plants through a network system made up of transmission lines, substations and distribution lines. It is via this reliable system that TNB supplies electricity to customers consistently and continuously, as well as ensuring a balance between demand and supply at all times.
Thermal Power Plant
TNB’s Thermal Power Plant produces power by using conventional steam turbine and steam generator principally fired by coal, oil or natural gas (steam power plant), gas-fired or diesel-fired open cycle gas turbine generators, and gas-fired or diesel-fired combined cycle turbine generators.
Hydroelectric Power Plants
Hydroelectric Power generation is the utilization of energy from flowing water as it descends from a height, and potential energy is converted to electrical energy. A hydroelectric Power Station requires the means of conveying water to produce the necessary force to spin a turbine linked to an electric generator, usually through a conduit such as a pipeline or tunnel to a turbine-generator which is spun by the passing water. TNB’s Hydroelectric Power Stations are classified as Storage, Run-of-river or Pondage stations.
Safety, Health & Environment
TNB is dedicated to increase efficiency in its business operations and generation technologies; consistent with a reasonable tariff and persistently upholding the need to care for our environment.
TNB’s Generation Division has adopted and practising the World Class Occupational Safety & Health (OSH) policy with the implementation of the TNB Safety & Excellence Management Systems (SEMS)
- The Power Plant Services
- Manjung Coal-Fired Power Station Process 1
- Manjung Coal-Fired Power Station Process 2
- Thermal Power Stations 1
In conformity with the Malaysian Grid Code, TNB’s Grid Division is aimed at providing a safe, reliable and economical operation of the grid system. The Division manages and operates the 132 kV, 275 kV and 500 kV transmission network of TNB known as the National Grid. Main activities of the Grid Division include strategy formulation, system planning, engineering, project management, control operations, maintenance, way leave management and more. The National Grid is interconnected to Thailand’s transmission system operated by Electricity Generating Authority of Thailand (EGAT) in the North via a HVDC interconnection with a transmission capacity of 300 MW and a 132 kV HVAC overhead line with maximum transmission capacity of 80 MW. The National Grid is also connected to Singapore’s transmission system at Senoko in the South via two 230 kV submarine cables with a firm transmission capacity of 200 MW.
Distribution Network division plans, constructs, operates, performs repairs & maintenance as well as manages the assets of the 33 kV, 22 kV, 11 kV, 6.6 kV and 415/240 volts in the Peninsula Malaysia’s distribution network.
Retail Division was formed in 2018 with the aim of delivering value to our customers, employees and shareholders. We are focused on delivering customer-centric experiences across all customer channels – Click, Call and Come Over via 13 state offices, 125 Kedai Tenaga and 7 CareLine offices nationwide. Our mandate also includes developing energy solutions that are beyond Energy services that deliver a smart energy lifestyle to targeted customers from large businesses to SMEs, from micro-businesses to residential customers.
To contact TNB CareLine:
- Dial 1 300 88 5454 (Mon-Fri, 8.00am-7.00pm; Weekends & Public Holidays 8.00am-5.00pm),
- Email [email protected],
- Facebook TNB Careline or Twitter @Tenaga_Nasional (24 hours)
- To report supply interruption or streetlight issues, dial 15454
Non Core Business
Associates/ Investment Companies
|TNB Properties Sdn. Bhd.||Subsidiary||100%|
|TNP Construction Sdn. Bhd.||Sub-Subsidiary||100% held throughTNB Properties Sdn. Bhd.|
|HICOM-TNB Properties Sdn Bhd||Associate Company Of Subsidiary||40% held through TNB Properties Sdn. Bhd.|
|INDERA-TNB Properties Sdn Bhd|
|KM METRO- TNB Properties Sdn Bhd|
|TNB Properties-JB Citytowers Sdn Bhd|
|ZEUS-TNB Properties Sdn Bhd|
Training & Development
Here at TNB, we believe that a competent and professional workforce is quintessential in realizing the vision and mission of the Company. Hence, TNB is fully dedicated in providing quality training, education and development programmes for TNB and its Group of Companies.
TNB has embarked on an Integrated Human Resource & Career Development initiative, whereby training, education & development programmes are directly linked to the career path and progression of the workforce.
TNB Integrated Learning Solution Sdn Bhd – ILSAS
The official training institute for TNB and a premier technical training institute equipped with 28 years of experience and proven track record in the field of power utility engineering.
ILSAS aims to be the Centre of Excellence in training of power utility competency and related services. ILSAS has experts in the field of power utility engineering and a complete range of facilities, including a world-class tri-fired and combined cycle simulators, training workshops, computer labs and various rooms for small classes to large seminars.
ILSAS is awarded the certification of MS ISO 9001:2008 and UKAS standards by SIRIM. Many ILSAS trainers are Certified Training Practitioners, recognized by the Institute of Training & Development (ITD).
ILSAS provides courses that are recognized by the Human Resources Development Berhad (HRDB) and the Energy Commission of Malaysia as well as the International Accreditation Bodies such as Empower, TWI and CSWIP.
Currently ILSAS provides courses in these the areas of:
- Sub-station & Protection
- Overhead Lines & Cables
- Electronics & Instrumentation
- Mechanical Engineering
- Generation & System Operation
- Power System Operation (HVAC & HVDC)
- Live Line Maintenance
- Primary & Secondary Equipment Maintenance
- Fault Analysis / Troubleshooting
- Management & Administrationss
- Computer & Information Technology
- Training & Development Skills
Long-term and short-term courses are available. ILSAS welcomes your participation.
For more information, contact us at:
TNB Integrated Learning Solution Sdn Bhd – ILSAS
Jalan IKRAM-UNITEN, 43650 Bandar Baru Bangi,Selangor,Malaysia
Tel : +603 8922 7222 | Fax: +603 8926 3505
ILSAS Malim Nawar Branch
PO Box 1, 31700 Malim Nawar,Perak, Malaysia.
Tel : +605 4775 960 | Fax: +605 4775 954
Email: [email protected]
Link: TNB ILSASX
Operation & Maintenance
Power Plant Operation & Maintenance (O&M)
In today’s globalize environment, diversification from a single market is essential for optimum growth. Hence, TNB intends to leverage its repair and maintenance skills under TNB Repair and Maintenance Sdn. Bhd. (REMACO) in order to penetrate promising markets abroad, especially in the emerging markets of the Middle East and Asia.
TNB Repair & Maintenance Sdn. Bhd. (REMACO)
First incorporated as a subsidiary of TNB in 1995, TNB Repair & Maintenance Sdn. Bhd. (REMACO) is managed independently as a business organisation within the corporate structure of the TNB group, Malaysia’s premier power utility organisation.
TNB REMACO is mainly involved in the energy industry. It provides repair and maintenance services for power plant equipments. In addition, the company has ventured into supplying spare parts and operations and maintenance services for the various power plants.
To support its business, TNB REMACO has strategically established itself into five main strategic business units (SBU).
- Maintenance Services specialises in turnkey maintenance of all thermal and hydro power plants, combined and open cycle gas turbine and all its associated equipment including diesel generating plants.
- Test & Diagnostics undertakes all power plants performance tests, C & I and plant calibration, electrical equipment maintenance including generator and transformer, technical audit and power plant rehabilitation.
- Repair Centre undertakes repair and refurbishing of all gas turbine components and their associated equipment.
- Project Management offers O&M services and other related services.
- BUYCO acts as a buying agent on behalf of TNB to procure spare parts from Original Equipment Manufacturers (OEM) and/or its vendors and international trading house with an aim of enhancing supply chain management and cost reduction.
As a power utility repair and maintenance organisation, TNB REMACO is managed on quality response to its own business environment comprising the specialized needs of its growing list of clients and customers. This has entailed strategic investments in technology and human capital development, fuelled by a strong commitment to deliver unsurpassed quality in performance.
TNB REPAIR AND MAINTENANCE SDN. BHD.,
LEVEL 23A, PJX-HM SHAH TOWER, NO.16A, PERSIARAN BARAT, 46050 PETALING JAYA, SELANGOR.
Tel: +603 7964 2600 | Fax: +603-7960 8020X