Tenaga Nasional Bhd (TNB) generates, transmits, and distributes electricity. It develops, operates, and maintains a portfolio of power-generating units. The company produces electricity using crude oil, natural gas, hydro, coal, and gas sources. It has operating assets in the UK, Kuwait, Turkiye, and Saudi Arabia.

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TNB has undertaken various R&D initiatives focused on decarbonisation and innovation, including investments in green hydrogen, carbon capture and utilisation (CCU), battery energy storage systems (BESS), and advanced renewable energy technologies. The company has also collaborated with Siemens Energy to explore hydrogen integration in power generation and advanced green hydrogen ventures with PETRONAS. Additionally, pilot projects for green hydrogen production and carbon capture have been launched at the Jimah East Power plant, and ammonia co-firing trials are being conducted at Manjung 4, Manjung 5, and Jimah East Power. The company is also enhancing digital solutions such as predictive analytics, digital twin models, and emission monitoring systems to support these innovations. In FY2024, the company spent MYR181.8 million on R&D, which as a percentage of revenue, stood at 0.3% and grew 49.3% YoY.