Backgrounder: nuclear energy safety and the SHANTI Act, 2025
UPSC has already asked about this. Read the story with these questions in mind.
A PIB backgrounder of 28 August 2026 explains how India keeps nuclear power safe and how atomic energy is used beyond electricity. India runs 24 reactors at seven sites with 8.78 GW, has nine under construction, and aims for 100 GW by 2047 under the Nuclear Energy Mission, backed by the SHANTI Act, 2025.
- Reactors
- 24 at seven sites; 8.78 GW installed
- Pipeline
- 9 under construction; 10 more being prepared
- Target
- 100 GW by 2047 (Nuclear Energy Mission for Viksit Bharat)
- SMR funding
- ₹20,000 crore in Union Budget 2025-26
- Law
- SHANTI Act, 2025
- First plant
- Tarapur, operating since 1969
Nuclear energy safety and applications in India: what happened?
Nuclear power gives steady, low-carbon electricity, but public fear of radiation and accidents is real. If India wants 100 GW by 2047, people must trust that plants are safe. This backgrounder lays out the safety design, the rules and the many non-power uses of atomic energy.
- In FY 2025-26, 1 GW of nuclear capacity avoided about 5.4 million tonnes of CO₂ equivalent, against 2.7 for hydro, 1.6 for wind and 0.9 for solar.
- Since 1969 nuclear power has avoided 851 million tonnes of CO₂ equivalent.
- After Fukushima (2011), every Indian plant was reviewed; short- and medium-term upgrades are done.
- India inaugurated the world’s first hydrogen production facility using nuclear process heat at Kalpakkam in 2026.
How are plants kept safe?
- Defence in Depth design with multiple layers of protection.
- Physical barriers: ceramic fuel pellets, zirconium alloy fuel rods, pressure vessel or tubes, and concrete containment.
- Indian PHWRs have two independent and diverse shutdown systems.
- Plants are designed to withstand earthquakes, floods, cyclones and tsunamis.
What are the radiation limits?
- ALARA principle: As Low as Reasonably Achievable.
- AERB occupational limit: average 20 mSv a year over five years, cumulative 100 mSv, and at most 30 mSv in any year.
- Public limit: 1 mSv a year.
How is waste handled?
- Under the Atomic Energy (Safe Disposal of Radioactive Wastes) Rules, 1987 and AERB codes.
- BARC’s vitrification technology turns high-level waste into stable glass blocks.
- Environmental Survey Laboratories monitor air, water, soil and food around every plant.
Who controls atomic energy under the Constitution?
- Entry 6 of List I (Union List): atomic energy and mineral resources necessary for its production.
- So nuclear power is a Union subject, regulated by the AERB under the Department of Atomic Energy framework.
Where else is nuclear technology used?
| Sector | Example |
|---|---|
| Health | 1.53 crore medical devices sterilised; 150-bed Homi Bhabha Cancer Hospital, Muzaffarpur (2025) |
| Agriculture | 70 BARC crop varieties, including TBM-9 banana and RTS-43 sorghum |
| Food | 40 gamma radiation processing facilities; 17 MoUs in 2025 |
| Rare earths | Certified Reference Material BARC B1401, first in India, fourth globally |
| Semiconductors | electronics-grade Boron-11 enrichment facility at Talcher |
| Hydrogen | nuclear process heat facility at Kalpakkam (2026) |
How does emergency preparedness work?
- Plant On-site Emergency Response Plan approved by AERB
- Off-site plan with district administration
- 16-km Emergency Planning Zone around each plant
- Regular mock drills with DDMAs
- Radiation Emergency Medical Networks for care
Why does nuclear energy safety and applications in India matter?
| Angle | What to note |
|---|---|
| Climate | Most carbon-efficient clean source per GW of capacity. |
| Energy security | 24×7 power that complements renewables. |
| Welfare | Cancer care, crop varieties and food preservation. |
| Strategic tech | Rare earth standards and Boron-11 for chips. |
| Trust | Clear safety norms answer public fears. |
What are the challenges in nuclear energy safety and applications in India?
- Reaching 100 GW from 8.78 GW needs a very fast build-out.
- Public acceptance near sites remains sensitive.
- Long-term waste management needs continued investment.
What should be done next on nuclear energy safety and applications in India?
- Build the nine reactors under construction and prepare 10 more.
- Develop indigenous Small Modular Reactors.
- Long-term post-Fukushima upgrades.
What can Prelims ask on nuclear energy safety and applications in India?
- India: 24 reactors, seven sites, 8.78 GW; 100 GW target by 2047.
- AERB limits: occupational 20 mSv/yr average (max 30 in a year); public 1 mSv/yr.
- Emergency Planning Zone: 16 km.
- Atomic energy: Entry 6, List I.
How to write about nuclear energy safety and applications in India in Mains
Practice question (15 marks, 250 words): Nuclear energy is essential for India’s net zero goal, but public trust is a precondition. Discuss the safety framework of India’s nuclear programme.
- Intro: 8.78 GW now, 100 GW by 2047.
- Climate case: CO₂ avoided per GW.
- Safety: defence in depth, PHWR shutdown, AERB limits.
- Waste and emergency planning.
- Conclusion: transparency builds trust.
How to use this in Mains
- As per PIB (2026-08-28): PIB outlines nuclear safety, regulation and non-power uses, citing the SHANTI Act, 2025 and the Nuclear Energy Mission for Viksit Bharat.
- Nuclear is key to baseload low-carbon power and net zero 2070.
Quotable data pointPIB outlines nuclear safety, regulation and non-power uses, citing the SHANTI Act, 2025 and the Nuclear Energy Mission for Viksit Bharat.
PIB: PIB Backgrounder: Nuclear energy in India, 28 Aug 2026
Exam angle
Prelims: three-stage programme; AERB.
Practice MCQs
Original practice questions (not PYQs).
India's Nuclear Energy Mission for Viksit Bharat targets what capacity by 2047?
Answer (c) & explanation
PIB Backgrounder, 28 Aug 2026.
The radius of the Emergency Planning Zone around Indian nuclear power plants is
Answer (c) & explanation
PIB Backgrounder, 28 Aug 2026.
"Atomic energy and mineral resources necessary for its production" is an entry in
Answer (a) & explanation
Constitution of India, Seventh Schedule.
Questions students ask about this
How many nuclear reactors does India operate?
24 reactors at seven sites, with 8.78 GW installed capacity.
What is the Nuclear Energy Mission target?
100 GW of nuclear power capacity by 2047.
What is the annual radiation dose limit for the public in India?
1 millisievert.
What is vitrification?
A BARC technology that converts high-level radioactive waste into stable glass blocks for long-term management.
Keep studying
Go deeper
Official source: PIB: PIB Backgrounder: Nuclear energy in India, 28 Aug 2026
facts from cited sources only; faculty review pending