The global transition towards clean energy has reignited interest in nuclear energy stocks across markets. With ambitious plans of 1 lakh MW nuclear capacity by 2047 and net zero emissions by 2070, companies involved in reactor construction, component manufacturing, and allied services are positioned for potential growth. This renewed focus creates interesting opportunities for investors looking to diversify their portfolios with clean energy stocks.
Growth in the Indian Nuclear Energy Sector
India’s nuclear sector growth is primarily driven by strategic national objectives and global technological advancements. The country aims to increase its nuclear power capacity to an ambitious 100 gigawatts by 2047.
This expansion is supported by significant policy reforms, including allowing 49% foreign direct investment in nuclear component manufacturing and developing indigenous small modular reactor technologies. The government’s commitment is evident through ₹20,000 crore fund allocation, technological partnerships with global nuclear powers, and a clear vision to position India as an important player in the global nuclear energy sector.
Top Indian Companies in the Nuclear Energy Sector
Here are the best nuclear energy stocks in 2025 you can consider for your energy transition investments:
Bharat Heavy Electricals Ltd. [NSE: BHEL]
Closing Price: ₹255.05 (23 May, 2025)
52-week High: ₹335.35
Total Market Cap: ₹88,180 crore
BHEL ltd has established itself as a crucial player in India’s nuclear energy landscape, with significant recent developments in the sector.
- Signed technology transfer agreement with Bhabha Atomic Research Centre for electrolyser systems in hydrogen production.
- Entered into an MoU with the Nuclear Power Corporation of India (NPCIL) to explore Pressurised Heavy Water Reactor (PHWR) technology.
- Signed Memorandum of Cooperation with Electricité de France S.A. to localise content for the Jaitapur Nuclear Power Plant Project.
- Total order inflow of ₹92,534 crore in FY25, with significant potential in nuclear equipment manufacturing.
Hindustan Construction Company Ltd. [NSE: HCC]
Closing Price: ₹29.37 (23 May, 2025)
52-week High: ₹57.50
Total Market Cap: ₹5,343 crore
HCC Ltd continues to be a critical contributor to India’s nuclear infrastructure, with a proven track record in the sector.
- Contributed 60% to India’s installed nuclear capacity.
- Commissioned the Rajasthan Atomic Power Project – Units 7 & 8 in FY25.
- Completed Integrated Nuclear Recycle Plant (INRP) of BARC at Tarapur.
- Nuclear energy sector order inflow of approximately ₹3,800 crore.
Walchandnagar Industries Ltd. [NSE: WALCHANNAG]
Closing Price: ₹202.77 (23 May, 2025)
52-week High: ₹438.70
Total Market Cap: ₹1,367 crore
Walchandnagar Industries Ltd maintains its strong position in nuclear component manufacturing, with continued expertise and international recognition.
- Four-decade-long expertise in manufacturing critical nuclear components.
- Trusted partner of the Department of Atomic Energy, NPCIL, BARC, and BHAVINI.
- Specialises in Class-I nuclear components for 220 MWe to 700 MWe Pressurised Heavy-Water Reactors.
- Assessed by global nuclear players, including Atomstroyexport, EDF, Westinghouse, and GE.
- Continues to be a key supplier for India’s nuclear power infrastructure projects.
Patels Airtemp (India) Ltd. [BSE: PATELSAI]
Closing Price: ₹530.65 (23 May, 2025)
52-week High: ₹900
Total Market Cap: ₹290 crore
Patels Airtemp Ltd stands out as a specialised manufacturer of critical nuclear power plant equipment.
- One of only three Indian companies with “N-NPT” authorisation.
- Holds ASME N-NPT Stamp for nuclear-grade applications.
- Specialises in heat transfer equipment for nuclear plants.
- Revenue grew to ₹3,708 crore in FY24, with 31.7% growth.
Larsen & Toubro Ltd. (L&T) [NSE: LT]
Closing Price: ₹3,600 (23 May, 2025)
52-week High: ₹3,963.50
Total Market Cap: ₹4,95,101 crore
L&T continues to be a significant player in the nuclear energy equipment manufacturing sector, with strategic projects and expansions.
- Recently dispatched the fourth Steam Generator to Kaiga Atomic Power Station in Karnataka.
- Won an order from NPCIL to build a cooling water pump house and natural draught cooling towers for the Rawatbhata Atomic Power Project.
- Total revenue of ₹2.5 lakh crore, with a 16% increase.
- Net profit jumped by 15% to ₹15,037 crore in the financial year.
MTAR Technologies Ltd. [NSE: MTARTECH]
Closing Price: ₹1,659 (23 May, 2025)
52-week High: ₹2,200
Total Market Cap: ₹5,103 crore
MTAR Technologies demonstrates growing involvement in the civil nuclear power segment with strategic order acquisitions.
- The civil nuclear power segment comprises 13% of the total order book.
- Order book of ₹1,031 crore as of the December quarter.
- Won ₹200 crore worth of clean energy orders in February 2025.
- Secured a ₹1.27 crore order from the Nuclear Power Corporation of India Limited (NPCIL).
- Nine-month revenue in FY25 increased by 12% to ₹492.9 crore.
Investment Implications for the Nuclear Sector
Your nuclear power investment decisions require a strategic approach, focusing on value chain positioning and the technological readiness of companies. Here are some useful insights that you can consider:
- Focus on companies with more than three years of nuclear certification experience, as they are likely to secure a majority of new contract values.
- Component manufacturers with export capabilities are experiencing significantly higher profit margins than domestic-only suppliers.
- Consider staggered investments over 18-24 months to mitigate volatility from regulatory announcement cycles.
- Track quarterly order book growth rather than current revenues to identify early-stage beneficiaries of sector expansion.
- Balance the portfolio with 60% established players and 40% emerging suppliers to optimise risk-reward in this sector.
Final Words
As India accelerates its energy transition, nuclear energy stocks represent an important segment within the broader renewable energy market. The companies highlighted are well-positioned to benefit from increased investments in nuclear infrastructure. While the sector involves longer development cycles, it offers potential stability compared to more volatile energy transition investments.
Consider these opportunities as part of a diversified portfolio aligned with India’s clean energy future. Visit Torus Digital for expert guidance on navigating the evolving energy landscape.
