India's Nuclear Energy Capacity and Expansion Plans
India currently operates 24 nuclear power reactors across seven sites with a total installed capacity of 8.78 GW, with nine additional reactors under construction and preparations continuing for 10 more units. The Nuclear Energy Mission for Viksit Bharat aims to achieve 100 GW of nuclear power capacity by 2047, supported by the Union Budget 2025–26 allocation of ₹20,000 crore for indigenous Small Modular Reactors. The SHANTI Act, 2025 strengthens the framework for safe and secure expansion of India's nuclear energy programme.
Emissions Reduction and Environmental Impact
Nuclear power is India's most carbon-efficient clean energy source per unit of installed capacity. In FY 2025–26, one gigawatt of nuclear capacity avoided approximately 5.4 million tonnes of CO₂ equivalent emissions, compared with 2.7 million tonnes for hydropower, 1.6 million tonnes for wind, and 0.9 million tonnes for solar power. Since 1969, India's nuclear power programme has cumulatively avoided 851 million tonnes of CO₂ equivalent emissions, equivalent to the annual carbon sequestration of over 38 billion mature trees.
Multi-Sector Applications of Nuclear Technology
Beyond electricity generation, nuclear technologies have diverse applications across critical sectors. In healthcare, the Tata Memorial Centre registered 1.3 lakh patients and screened around five lakh women for cancers in FY 2024–25, while indigenous radiation technologies sterilised 1.53 crore medical devices. The 150-bed Homi Bhabha Cancer Hospital and Research Centre in Muzaffarpur was inaugurated in 2025. In agriculture, BARC has developed 70 crop varieties including TBM-9 banana and RTS-43 sorghum released in 2025. For food preservation, 17 MoUs were signed in 2025 to expand food irradiation infrastructure, with six gamma radiation processing facilities commissioned bringing the total to 40 operational facilities. In semiconductors, India established its first Electronics-grade (99.8% purity) Boron-11 Enrichment Facility at Talcher. For green hydrogen, India inaugurated the world's first hydrogen production facility using nuclear process heat at Kalpakkam in 2026. In mining, India released its first Certified Reference Material, Ferrocarbonatite (FC) – BARC B1401, for Rare Earth Elements.
Safety Protocols and Regulatory Framework
India's nuclear plants follow the Defence in Depth design philosophy with multiple safety barriers including ceramic fuel pellets, sealed zirconium alloy fuel rods, robust pressure vessels, and reinforced concrete containment structures. Plants are designed to withstand earthquakes, floods, cyclones, tsunamis, and other external hazards. The Atomic Energy Regulatory Board (AERB) prescribes an average occupational dose limit of 20 millisieverts (mSv) per year over five years, with a cumulative limit of 100 mSv and maximum of 30 mSv in any year, while the annual radiation dose limit for the public is 1 mSv. India employs indigenous vitrification technology for safe management of high-level radioactive waste, converting it into stable glass blocks. All operations comply with the Atomic Energy (Safe Disposal of Radioactive Wastes) Rules, 1987 and AERB Safety Code on Radioactive Waste Management.
Emergency Preparedness and Public Protection
India has established a multi-level governance framework for nuclear emergency preparedness integrating national, state, district, and plant-level response mechanisms. Every nuclear power plant maintains mandatory On-site and Off-site Emergency Response Plans approved by the AERB, with regular mock drills and emergency exercises conducted with District Administration and Disaster Management Authorities. Nuclear power plants are located in low-population areas with dedicated safety zones and a 16-kilometre Emergency Planning Zone. Each plant has an Environmental Survey Laboratory that continuously monitors air, water, soil, vegetation and food during normal operations and emergencies. Following the 2011 Fukushima accident, all Indian nuclear power plants underwent comprehensive safety reviews with all recommended short-term and medium-term safety enhancements completed.