Whalesbook
### The Green Energy Imperative
National Aluminium Company Ltd (Nalco) is set to implement a substantial upgrade to its energy infrastructure, aiming to establish 200-300 MW of green power capacity bolstered by battery storage. This initiative is central to Nalco's strategy to significantly reduce the carbon emissions generated by its power-intensive smelting operations. Currently, the company operates entirely on coal-based captive power plants, a system responsible for approximately 80% of its overall carbon footprint. The proposed shift is deemed critical for sustainable aluminium production, aligning with global environmental pressures and evolving market demands. Nalco's Chairman-cum-Managing Director, Brijendra Pratap Singh, indicated that this transition is expected to take place over the next three to four years, aiming to incorporate 20-30% renewable energy into its current consumption. Recent market data shows Nalco's stock trading around ₹370.65 on January 23, 2026, with a market capitalization nearing ₹68,000 crore. The company reported its best-ever first half performance in FY25, with revenues up by 18-19% and profits by nearly 47%.
### Navigating the Cost and Availability Challenge
The primary obstacle for Nalco and the broader Indian aluminium sector, according to CMD Singh, is the economic viability and consistent availability of green power. Green energy tariffs are presently hovering between ₹4.5-5 per unit, a noticeable increase from the ₹3-3.5 per unit cost of its in-house coal-based power. Smelting, a core process, constitutes 35-40% of production costs, making power expense a direct determinant of competitiveness. To mitigate this, Nalco is actively exploring long-term power purchase agreements (PPAs) and developing its own renewable energy plants. A consultant has been appointed to devise strategies for securing green energy at minimal cost while ensuring round-the-clock availability, a non-negotiable requirement for stable aluminium smelting operations. The company has already made headway with 198 MW of wind power plants and 1020 kWp of rooftop solar installations as part of its existing green initiatives. Despite these efforts, Singh has expressed that the Indian aluminium sector is not yet fully prepared for a complete green transition, citing challenges such as supply consistency and the higher cost of renewable energy. This comes amidst external pressures like the European Union's Carbon Border Adjustment Mechanism (CBAM), which targets imports based on their carbon footprint.
### Diversification and Strategic Expansion
Beyond its energy transition, Nalco is pursuing a multi-faceted expansion strategy. Key projects include adding a fifth stream to its alumina refinery, aiming to boost capacity from 2.1 million tonnes to 3.1 million tonnes. The development of the Pottangi bauxite mines in Odisha is also underway, with mining lease deeds already secured. The company has commenced coal mining from the Utkal D and E blocks and is undertaking a brownfield expansion of its smelter by 0.5 million tonnes per annum. Furthermore, Nalco is diversifying into critical minerals, exploring ventures into rare earth elements (REEs), magnesium, and chromite, and is conducting due diligence for a stake in an Australian lithium mine through its joint venture, Khanij Bidesh India Ltd (KABIL). Financially, Nalco has demonstrated strong performance, with its P/E ratio standing around 11.1x and ROE approximately 32.7% as of January 23, 2026. The company's board is scheduled to meet on January 30, 2026, to review quarterly results and consider an interim dividend. Recent market sentiment saw Nalco shares experience profit booking on January 23, 2026, following a four-day rally, reflecting broader sector weakness and cooling commodity prices. Earlier, in November 2025, the stock saw a sharp rise after reporting a 37% YoY surge in Q2 profit and announcing an interim dividend.