Nuclear Safety and Radioactive Waste Management in India
India prioritizes nuclear safety through principles like defence-in-depth and robust regulatory oversight by AERB, while radioactive waste is managed via str...
India has launched the Nuclear Energy Mission (NEM) with a target of achieving 100 GWe nuclear power generation capacity by 2047 to support the Viksit Bharat vision and net-zero emissions goal by 2070. The mission also aims to develop and operationalize at least five indigenous Small Modular Reactors (SMRs) by 2033, with BARC undertaking design and development. The SHANTI Act, 2025, has been enacted to facilitate this expansion by opening the nuclear energy sector to private participation and granting statutory status to the Atomic Energy Regulatory Board (AERB) for independent regulation. The roadmap outlines a phased increase from the current 8.78 GW to 22 GW by 2031-32, and 100 GW by 2047, involving indigenous Pressurised Heavy Water Reactors (PHWR), Light Water Reactors (LWR), and SMRs, with significant contributions from public, private, and joint ventures. The article emphasizes the highest priority accorded to nuclear safety, security, and robust waste management practices, governed by AERB guidelines and the Atomic Energy (Safe Disposal of Radioactive Wastes) Rules, 1987.
Durable syllabus ideas for revision — not article memory.
India prioritizes nuclear safety through principles like defence-in-depth and robust regulatory oversight by AERB, while radioactive waste is managed via str...
India's Nuclear Energy Mission targets 100 GWe by 2047 for energy security and net-zero, facilitated by the SHANTI Act opening private participation and stre...
Previous year Prelims questions on overlapping themes and topics.
Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen?
Fuel Cell Electric Vehicles (FCEVs) powered by hydrogen generate electricity by combining hydrogen (H₂) with oxygen (O₂) in a fuel cell. This process produces electricity, heat, and the only exhaust emission is water vapour (H₂O), making hydrogen fuel cells zero-emission.
Consider the following statements:
Statement-I: India, despite having uranium deposits, depends on coal for most of its electricity production.
Statement-II: Uranium, enriched to the extent of at least 60% is required for the production of electricity.
Which one of the following is correct in respect of the above statements?
* Statement I is Correct : India has domestic uranium reserves, but they are not enough to meet the country's nuclear power generation needs. Additionally, some nuclear reactors in India use imported uranium. Coal remains the dominant source of electricity production in India, although its share is gradually decreasing. * The major uranium deposits of the country occur in geological basins of the Singhbhum shear zone (Jharkhand), Cuddapah basin (Andhra Pradesh and Telangana), Mahadek basin (Meghalaya), Delhi Supergroup of rocks (Rajasthan) and Bhima basin (Karnataka). * Statement II is Incorrect : Nuclear power plants can utilise uranium enriched to varying degrees. India primarily uses Pressurised Heavy Water Reactors (PHWRs) that can function efficiently with low-enriched uranium (around 2-5% enrichment).
Which of the following statements with regard to Green Hydrogen is/are correct ?
1. It is decarbonized hydrogen obtained from natural gas reforming combined with carbon capture and storage (CCS).
2. It is produced using electrolysis of water with electricity generated by renewable energy.
3. National Green Hydrogen Mission of India aims for abatement of nearly 50 MMT of annual greenhouse gas emissions by 2030.
Select the answer using the code given below :
Statement 1 is Incorrect: Hydrogen obtained from fossil fuels (primarily natural gas) through steam methane reforming, where the resulting carbon emissions are captured and stored using Carbon Capture and Storage (CCS) technologies, is known as Blue Hydrogen, not Green Hydrogen. Statement 2 is Correct: Green Hydrogen is produced by splitting water into hydrogen and oxygen via electrolysis, using electricity generated entirely from renewable energy sources (such as solar or wind). It is a completely zero-emission process. Statement 3 is Correct: The National Green Hydrogen Mission launched by the Government of India has set quantified targets for 2030. It aims to develop a green hydrogen production capacity of at least 5 MMT (Million Metric Tonnes) per annum. This will lead to the abatement of nearly 50 MMT of annual greenhouse gas emissions by 2030, alongside reducing fossil fuel imports and creating over 6 lakh jobs. Therefore, the correct option is B.
Consider the following heavy industries :
1. Fertilizer plants
2. Oil refineries
3. Steel plants
Green hydrogen is expected to play a significant role in decarbonizing how many of the above industries?
* Green hydrogen is the hydrogen produced through electrolysis of water using electricity from renewable sources. * Green hydrogen is expected to play a significant role in decarbonizing all three of the mentioned heavy industries. * Green hydrogen can be used in the production of ammonia, which is a key component for many fertilizers. Fertilizer production is energy-intensive and often relies on fossil fuels, particularly natural gas. By using green hydrogen as a clean energy source, the carbon emissions from this industry can be significantly reduced * Green hydrogen can be used in oil refineries to process crude oil into various products, including gasoline, diesel, and jet fuel. This can help to reduce the carbon emissions from the refining process. * The steel industry is one of the largest industrial emitters of carbon dioxide. Green hydrogen can be used in place of coal in the steelmaking process, significantly reducing the industry's carbon emissions.
India is an important member of the ‘International Thermonuclear Experimental Reactor’. If this experiment succeeds, what is the immediate advantage for India?
India is a key participant in the International Thermonuclear Experimental Reactor (ITER), a global nuclear fusion research and engineering megaproject. ITER is set to become the world's largest magnetic confinement plasma physics experiment, aiming to demonstrate the feasibility of fusion as a large-scale, sustainable energy source. India's involvement in ITER provides technological expertise, research collaboration, and industrial capabilities, which can significantly contribute to its future efforts in developing nuclear fusion reactors for commercial power generation. By participating in this international project, India gains access to cutting-edge advancements in fusion technology, potentially paving the way for its own fusion-based energy infrastructure.
Hence, the correct answer is option D.
In India, why are some nuclear reactors kept under “IAEA Safeguards” while others are not?
IAEA safeguards are a set of technical safeguards applied by the IAEA to independently verify any nuclear facilities to check if it is not misused or deviated from peaceful uses. IAEA Safeguards are meant to understand if imported/enriched uranium is not used for non-peaceful purposes. New reactors under IAEA safeguards The decision will be based on the source of uranium.
With reference to green hydrogen, Consider the following statements :
1. It can be used directly as a fuel for internal combustion.
2. It can be blended with natural gas and used as fuel for heat or power generation.
3. It can be used in the hydrogen fuel cell to run vehicles.
How many of the above statements are correct?
* Green hydrogen is any hydrogen that is produced from renewable energy. * Statement 1 is correct: Green hydrogen can be used as a direct fuel for internal combustion engines, replacing conventional fuels like gasoline or diesel. * Statement 2 is correct: Green hydrogen can be blended with natural gas and used as a fuel for various applications like heating, power generation, and industrial processes. * Statement 3 is correct: Green hydrogen can be used in hydrogen fuel cells to power electric vehicles, providing a clean and efficient alternative to traditional fossil fuel-powered vehicles. Therefore, all three statements regarding the uses of green hydrogen are correct.
Consider the following statements:
1. Gujarat has the largest solar park in India.
2. Kerala has a fully solar powered International Airport.
3. Goa has the largest floating solar photovoltaic project in India.
Which of the statements given above is/are correct?
Statement 1 is incorrect. India's Bhadla Solar Park in Rajasthan is the largest solar power park in the world. Statement 2 is correct. Kerala’s Cochin International Airport Ltd (CIAL) is the first airport in the world that would be running fully on solar power. Statement 3 is incorrect. The largest floating solar photovoltaic project in India is not in Goa but in Ramagundam, Telangana. The project is developed by NTPC (National Thermal Power Corporation Limited).
Consider the following types of vehicles:
I. Full battery electric vehicles
II. Hydrogen fuel cell vehicles
III. Fuel cell electric hybrid vehicles
How many of the above are considered as alternative (powertrain) vehicles?
Alternative powertrain vehicles are those that do not use conventional petrol/diesel engines. Instead, they rely on clean energy sources like electricity or hydrogen. * ✅ I. BEVs – Run fully on batteries and electric motors. * ✅II. FCEVs – Use hydrogen to make electricity via a fuel cell. * ✅III. FCEHVs – Combine hydrogen fuel cell + battery + electric motor. All three are alternatives to traditional fuel vehicles.
With reference to technologies for solar power production, consider the following statements:
1. ‘Photovoltaics’ is a technology that generates electricity by direct conversion of light into electricity, while ‘Solar Thermal’ is a technology that utilizes the Sun’s rays to generate heat which is further used in the electricity generation process.
2. Photovoltaics generates Alternating Current (AC), while Solar Thermal generates Direct Current (DC).
3. India has a manufacturing base for Solar Thermal technology, but not for Photovoltaics.
Which of the statements given above is/are correct?
Statement 1 is correct: Photovoltaic (PV) technology converts sunlight directly into electricity using semiconductors (like silicon) — this is a direct conversion of light to electrical energy. Solar Thermal technology uses mirrors or lenses to concentrate sunlight to produce heat, which then drives a turbine to generate electricity (an indirect process). Statement 2 is incorrect: Photovoltaic systems generate Direct Current (DC), which is usually converted into Alternating Current (AC) through an inverter for grid use. Solar Thermal systems generate heat energy, which is used to produce AC electricity through conventional turbines. Statement 3 is incorrect: India has a manufacturing base for solar photovoltaics (PV) — including solar cells, modules, and panels (e.g., companies like Adani Solar, Vikram Solar, and Tata Power Solar). The solar thermal manufacturing base in India is limited and largely focused on small-scale applications like water heating.
Previous year Mains questions mapped to overlapping GS syllabus topics.
India aims to become a semiconductor manufacturing hub. What are the challenges faced by the semiconductor industry in India? Mention the salient features of the India Semiconductor Mission.
How does nanotechnology offer significant advancements in the field of agriculture? How can this technology help to uplift the socio-economic status of farmers?
Examine the evolving pattern of Centre-State financial relations in the context of planned development in India. How far have the recent reforms impacted the fiscal federalism in India?
Mahatma Jotirao Phule’s writings and efforts of social reforms touched issues of almost all subaltern classes. Discuss.
"Constitutional morality is the fulcrum which acts as an essential check upon the high functionaries and citizens alike…."
In view of the above observation of the Supreme Court, explain the concept of constitutional morality and its application to ensure balance between judicial independence and judicial accountability in India.
What is Carbon Capture, Utilization and Storage (CCUS)? What is the potential role of CCUS in tackling climate change?
MCQs drawn from today's published current affairs.
The article states that the Nuclear Energy Mission (NEM) has the objective of achieving 100 GWe nuclear power generation capacity by 2047. The net-zero target is by 2070, and the SMR target is five indigenous SMRs by 2033, not ten. The SHANTI Act opens the sector to private participation, but not for complete privatization by 2030.
Statements 1 and 2 are correct as per the article: 'Parliament has enacted the SHANTI Act, 2025... This Act opens the nuclear energy sector to the private participation.' and 'To facilitate participation of private sector in nuclear power generation, the SHANTI Act establishes the regulatory body (Atomic Energy Regulatory Board) so as to give it a statutory status'. Statement 3 is incorrect because the development of SMRs is a goal of the Nuclear Energy Mission, which the SHANTI Act facilitates, but the Act itself does not mandate this specific development target.
The article explicitly states: 'Highest priority is accorded to safety and security in all aspects of nuclear power viz. siting, design, construction, commissioning, and operation. Nuclear power plants are designed adopting safety principles of redundancy, diversity and provided with fail-safe design features following an overlapping defence-in-depth approach.' Option A is incorrect as waste is segregated, treated, and conditioned. Option B is incorrect as environmental monitoring is carried out by Environmental Survey Laboratories (ESLs) of BARC, with AERB verifying adherence. Option D is not stated; the SHANTI Act opens the sector to private participation broadly, and the 1987 rules govern disposal, not private sector prohibition.
Approach: Introduce NEM and SHANTI Act, discuss targets (100 GW, SMRs), regulatory changes (AERB statutory status), private participation, and link these to energy security, economic growth (Viksit Bharat), and climate goals (net-zero.
Approach: Define SMRs and their advantages, elaborate on India's SMR targets and BARC's role, then discuss challenges related to safety protocols, waste disposal, regulatory oversight, and public acceptance for widespread adoption.