Tenaga Nasional Berhad (TNB) is the largest electricity utility in Malaysia and a leading utility company in Asia. Its core activities span power generation, transmission, electricity distribution, and electricity retailing. The company serves over 11 million customers and holds assets valued at almost RM87 billion.
TNB operates a substantial renewable energy portfolio, including 3.3 gigawatts of total gross capacity in Peninsular Malaysia - of which 2.5 GW is large hydro - and an additional 1.3 GW across the United Kingdom, Ireland, Australia, and Turkiye. The company's technical domains cover power generation, electricity transmission and distribution, electricity retailing, and renewable energy sources such as solar, wind, and hydro.
Geographically, TNB has a presence in Malaysia - including Peninsular Malaysia, Sabah, and the Federal Territory of Labuan - as well as international operations in the United Kingdom, Ireland, Australia, Turkiye, Saudi Arabia, Kuwait, Pakistan, and Cambodia. The company states its purpose as "Brighten Lives Through Innovative and Sustainable Solutions Towards a Better World," with core values centred on integrity, collaboration, professionalism, customer centricity, forward thinking, and mindfulness.






