Nuclear Energy Mission & Bharat Small Modular Reactors

On August 5, 2026, the Union Government informed the Lok Sabha about the progress of the Nuclear Energy Mission and the development of Bharat Small Modular Reactors (SMRs). Backed by a Rs 20,000 crore budget allocation from the 2025-26 Union Budget, the Bhabha Atomic Research Centre (BARC) is developing three reactor models (BSMR-200, SMR-55, and HTGCR) to meet the target of five operational SMRs by 2033. The recently enacted SHANTI 2025 Act will facilitate private participation to achieve the ambitious 100 GW nuclear power target by 2047.

What Happened

On August 5, 2026, Dr. Jitendra Singh, Union Minister of State for Atomic Energy, presented a written reply in the Lok Sabha detailing the progress of the Nuclear Energy Mission. The government highlighted its push to deploy Small Modular Reactors (SMRs) using the Rs 20,000 crore allocated in the Union Budget 2025–26. Bhabha Atomic Research Centre (BARC) has received in-principle approvals to develop three advanced nuclear reactor variants.

When & Where

The update was provided in the Lok Sabha, New Delhi, on August 5, 2026. The actual reactor deployment sites include Tarapur in Maharashtra for power generation reactors and BARC Vizag in Andhra Pradesh for the hydrogen-producing reactor.

Who Is Involved

Department of Atomic Energy (DAE): The overarching nodal department overseeing the Nuclear Energy Mission.
Bhabha Atomic Research Centre (BARC): The premier research institution undertaking the design and development of the reactors.
Atomic Energy Commission (AEC): The apex body that provided the site approval and cleared administrative sanctions.
Empowered Technology Group (ETG): Granted crucial technology approvals for the BSMR-200.
Ministry of Environment, Forest and Climate Change (MoEF&CC): Provided the Terms of Reference (ToR) for environmental clearances for the Vizag site.
Private & Government Entities: Will participate in the nuclear sector via the new legislative framework of the SHANTI Act.

How It Works

Reactor Development: BARC is designing three variants: BSMR-200 (220 MWe), SMR-55 (55 MWe), and HTGCR (5 MWth).
Power Generation: BSMR-200 and SMR-55 function on a Pressurized Water Reactor (PWR) design. They will use pressurized water as a coolant to generate electricity efficiently at Tarapur.
Hydrogen Production: The HTGCR is not for electricity but acts as a nuclear heat source. It will be coupled with a copper-chlorine thermochemical cycle at Vizag to produce hydrogen.
Manufacturing: Indigenous manufacturing is leveraged by domestic industries using a special material called Advanced Purified Reactor Vessel Alloy (ApuRVA) for forgings and pressure vessels. Once financial sanction is completed, establishment takes 60 to 72 months.

Why It Matters

Economic Impact: The entry of private entities via the SHANTI Act will bring massive capital investments into the traditionally state-controlled nuclear sector.
Environmental Importance: SMRs offer a reliable, zero-carbon base-load power alternative to coal, and the HTGCR advances India's green hydrogen ambitions.
Strategic Policy: Meeting the 100 GW target by 2047 is critical for India's energy security and its commitment to achieving net-zero emissions by 2070. ⚠️ [SOURCE NEEDED]

Historical Background

1954: The Department of Atomic Energy (DAE) was established under the direct charge of the Prime Minister.
1969: Tarapur Atomic Power Station, India's first commercial nuclear facility, became operational.
2023: NITI Aayog released a report emphasizing the need for SMRs to replace aging thermal power plants and aid clean energy transition.

Previous Related Events

August 2024: The Union Government signaled its intention to amend the Atomic Energy Act of 1962 to allow private investment in non-core nuclear operations.
July 2025: The Union Budget 2025–26 officially launched the Nuclear Energy Mission with a massive capital outlay.
Late 2025: The Parliament enacted the SHANTI 2025 Act to legally enshrine the reforms for private participation in peaceful nuclear energy.

Static GK Connection

Union List (Schedule VII): Article 246 places "Atomic energy and mineral resources necessary for its production" under Entry 6 of the Union List, meaning only the Parliament can legislate on it.
Pressurized Water Reactor (PWR): A scientific concept where ordinary light water is used as both coolant and neutron moderator. It is kept under high pressure to prevent boiling, making it highly stable for commercial power generation.

India & World Comparison

Globally, countries like the United States, Russia, and China have taken early leads in deploying Small Modular Reactors because of their reduced capital cost and high safety margins. By aiming for 5 indigenous SMRs by 2033, India aims to become a key exporter of nuclear technology to the Global South, moving away from its historical reliance on imported large-scale reactors.

Future Impact

Short Term (2033): Commissioning and operationalising at least five indigenous SMRs, proving the commercial viability of ApuRVA and the PWR design.
Medium Term: Notification and full enforcement of the SHANTI Act will trigger the formation of joint ventures between public sector undertakings (like NPCIL) and private corporations.
Long Term (2047): Hitting the 100 GW nuclear power generation mark to fulfill the energy demands of 'Vikshit Bharat'.

🔑 Key Points for Revision

Rs 20,000 crore allocated in Budget 2025-26 for the Nuclear Energy Mission.
Target set to operationalise at least five SMRs by the year 2033.
Long-term national goal is to generate 100 GW of nuclear power by 2047.
BARC is developing three indigenous reactors: BSMR-200, SMR-55, and HTGCR.
BSMR-200 (220 MWe) and SMR-55 (55 MWe) are Pressurized Water Reactors (PWR).
Both BSMR-200 and SMR-55 will be located at Tarapur, Maharashtra.
HTGCR (5 MWth) is a High Temperature Gas Cooled Reactor located in Vizag.
HTGCR is not for power; it generates process heat for hydrogen production.
HTGCR will be coupled with a copper-chlorine thermochemical cycle.
The SHANTI 2025 Act permits private entity participation in the nuclear sector.
SHANTI stands for Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India.
SMRs take roughly 60 to 72 months for establishment post-sanction.
ApuRVA (Advanced Purified Reactor Vessel Alloy) is the new indigenous special material.
Atomic Energy Commission (AEC) is the apex body approving project sites.
Atomic energy falls strictly under the Union List of the Seventh Schedule.

🧠 Concept Link (Static GK Deep Dive)

Core Concept: Small Modular Reactors (SMRs)

Definition: Advanced nuclear reactors with a capacity of up to 300 MW(e) per unit, designed to be built in factories and assembled on-site.
Constitutional / Legal Basis: Regulated under the Atomic Energy Act, 1962, and now the SHANTI Act 2025. Entry 6 of the Union List.
Scientific / Economic Principle: Capitalizes on economies of multiples rather than economies of scale. Modular manufacturing reduces capital cost and construction time.
How it connects to this event: BARC's development of BSMR-200 and SMR-55 represents India's official entry into indigenous SMR deployment.
Origin & History: The concept gained global traction in the 2010s to address the high capital costs and long delays of traditional large nuclear plants. ⚠️ [SOURCE NEEDED]
Key milestone 1: In 2020, Russia commissioned the Akademik Lomonosov, the world’s first floating nuclear power plant utilizing SMR technology. ⚠️ [SOURCE NEEDED]
Key milestone 2: The Union Budget 2025-26 formally allocating Rs 20,000 crore for SMR development in India.
Related Acts / Schemes / Treaties: Atomic Energy Act 1962, SHANTI 2025 Act, National Green Hydrogen Mission.
Nodal Ministry / Body: Department of Atomic Energy (DAE) and Bhabha Atomic Research Centre (BARC).
India-specific relevance: India has a vast, aging fleet of coal plants. SMRs provide a plug-and-play carbon-free replacement that fits into existing power grid nodes.
Global comparison: While China and Russia lead in early commercial SMRs, India's model emphasizes indigenous supply chains and private sector partnerships.
Data point: SMRs require a construction period of just 60 to 72 months, nearly half the time needed for conventional 700+ MW reactors.
Common exam angle: UPSC frequently tests the difference between conventional reactors, SMRs, and Fast Breeder Reactors, particularly focusing on coolants and moderators.
Easy memory hook: SMR = Small (under 300MW), Modular (factory-built), Reliable (passive safety features).

❓ Practice MCQs

Q1. Under the Nuclear Energy Mission, how much budget was allocated in the Union Budget 2025-26 for Small Modular Reactors? [Easy]

A) Rs 10,000 crore

B) Rs 15,000 crore

C) Rs 20,000 crore

D) Rs 25,000 crore

Answer: C

Explanation: The Union Budget 2025-26 allocated a total budgetary provision of Rs 20,000 crore for the design, development, and deployment of SMRs.

Q2. What is the full form of the recently enacted SHANTI 2025 Act? [Easy]

A) Sustainable Harnessing and Advancement of Nuclear Technology in India Act

B) Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India Act

C) Strategic Harnessing of Atomic and Nuclear Technologies for India Act

D) Standardized Heating and Nuclear Thermal Infrastructure Act

Answer: B

Explanation: SHANTI stands for Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India, an act enabling private participation.

Q3. Where is the proposed site for the 220 MWe Bharat Small Modular Reactor (BSMR-200)? [Moderate]

A) Kalpakkam, Tamil Nadu

B) Kakrapar, Gujarat

C) Tarapur, Maharashtra

D) Vizag, Andhra Pradesh

Answer: C

Explanation: The Atomic Energy Commission has approved Tarapur, Maharashtra as the site for both the BSMR-200 and the SMR-55.

Q4. What is the primary purpose of the High Temperature Gas Cooled Reactor (HTGCR) being developed at Vizag? [Moderate]

A) Generation of electricity for the national grid

B) Providing propulsion for nuclear submarines

C) Desalination of seawater

D) Generation of process heat for hydrogen production

Answer: D

Explanation: The HTGCR has a capacity up to 5 MWth and acts as a nuclear heat source to be coupled with a thermochemical cycle for hydrogen production.

Q5. Which thermochemical cycle is proposed to be coupled with the HTGCR for hydrogen production? [Moderate]

A) Sulfur-iodine cycle

B) Copper-chlorine cycle

C) Zinc-zinc oxide cycle

D) Iron-oxide cycle

Answer: B

Explanation: The official statement noted that the HTGCR will be coupled with a suitable thermochemical cycle, such as the copper-chlorine cycle.

Q6. By which year does the Indian government aim to develop and operationalise at least five indigenous SMRs? [Tricky]

A) 2030

B) 2033

C) 2035

D) 2047

Answer: B

Explanation: The Rs 20,000 crore allocation aims to support the objective of developing and operationalising at least five indigenous SMRs by 2033.

Q7. What is the name of the special material indigenously developed for forging the reactor pressure vessels of the new SMRs? [Tricky]

A) Bhabhatron-X

B) ApuRVA

C) Zircaloy-4

D) Inconel-718

Answer: B

Explanation: The special material Advanced Purified Reactor Vessel Alloy (ApuRVA) has been developed in collaboration with Indian industries.

Q8. According to the government's long-term vision, what is the target for total nuclear power generation capacity by the year 2047? [Tricky]

A) 50 GW

B) 75 GW

C) 100 GW

D) 150 GW

Answer: C

Explanation: The government has set an ambitious goal of generating 100 GW of nuclear power by the year 2047 for Vikshit Bharat.

📜 Previous Year Question Style (PYQ)

PYQ 1:

Which of the following bodies is responsible for granting the final administrative and financial sanction clearance for the engineering and construction of the BSMR-200?

A) Bhabha Atomic Research Centre (BARC)

B) Atomic Energy Commission (AEC)

C) NITI Aayog

D) Ministry of Environment, Forest and Climate Change (MoEF&CC)

Answer: B

Explanation: The proposal for the Administrative & Financial sanction for the BSMR-200 is cleared by the Atomic Energy Commission (AEC).

PYQ 2:

Consider the following statements regarding India's Small Modular Reactor (SMR) development program:

1. The BSMR-200 and SMR-55 are based on Pressurized Heavy Water Reactor (PHWR) technology.
2. The SHANTI 2025 Act permits the participation of private entities in the nuclear energy sector for peaceful purposes.
3. SMRs require a timeline of 60 to 72 months for establishment after receiving administrative and financial sanction.

Which of the above statements is/are correct?

A) 1 and 2 only

B) 2 and 3 only

C) 1 and 3 only

D) 1, 2, and 3

Answer: B

Explanation: Statement 1 is incorrect because BSMR-200 and SMR-55 are based on Pressurized Water Reactor (PWR) design, not PHWR (though PHWR expertise is being leveraged). Statements 2 and 3 are correct as per the official announcement.

PYQ 3:

Assertion (A): The High Temperature Gas Cooled Reactor (HTGCR) developed by BARC is designed primarily to boost India's electrical base-load capacity.

Reason (R): The HTGCR will be coupled with a copper-chlorine cycle.

Choose the correct option:

A) Both A and R are true, and R is the correct explanation of A.

B) Both A and R are true, but R is not the correct explanation of A.

C) A is true, but R is false.

D) A is false, but R is true.

Answer: D

Explanation: Assertion is false because HTGCR (up to 5 MWth) is explicitly designed for generating process heat, not for power generation/electricity. Reason is true as it couples with a copper-chlorine cycle for hydrogen production.

✍️ Mains Answer Pointers

Question 1 (150 words): Analyze the significance of the SHANTI 2025 Act in transforming India's nuclear energy landscape.

The enactment of the SHANTI 2025 (Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India) Act represents a watershed moment in India's energy governance. Historically, under the Atomic Energy Act, 1962, nuclear power generation was restricted exclusively to government entities. The SHANTI Act dismantles this monopoly by enabling legislative reforms to widen the participation of private entities in the nuclear sector for peaceful purposes.

This legislative pivot is highly significant economically, as nuclear projects are highly capital-intensive. By inviting private capital and technological collaboration, India can rapidly scale its infrastructure. Furthermore, it accelerates the timeline for deploying advanced technologies like the Rs 20,000 crore Small Modular Reactor (SMR) initiative.

Ultimately, this collaborative public-private framework is a critical prerequisite for achieving India’s ambitious target of generating 100 GW of nuclear power by 2047, ensuring energy security and aiding the transition to a low-carbon economy.

Question 2 (250 words): "The transition toward Small Modular Reactors (SMRs) is an economic and environmental imperative for India." Discuss this statement in the context of the recent Nuclear Energy Mission announcements.

India's energy sector stands at a crossroads, balancing soaring domestic demand with stringent global climate commitments. In this context, the transition toward Small Modular Reactors (SMRs) is both an economic and environmental imperative. Economically, traditional nuclear plants suffer from massive capital outlays and long gestation periods. SMRs, such as the proposed 220 MWe BSMR-200, mitigate this through modular, factory-built designs that reduce construction time to just 60-72 months. The recent allocation of Rs 20,000 crore in the Union Budget 2025-26 to operationalise at least five SMRs by 2033 underscores the government's intent to leverage these economic efficiencies.

Environmentally, SMRs provide a safe, zero-emission base-load power alternative capable of directly replacing retiring coal plants without requiring massive grid transmission overhauls. Furthermore, the development of the 5 MWth High Temperature Gas Cooled Reactor (HTGCR) in Vizag highlights the multi-dimensional utility of SMRs; by coupling the reactor with a copper-chlorine thermochemical cycle, it enables the clean production of hydrogen, directly supporting India's green hydrogen transition.

Politically and legally, the government has fortified this mission through the SHANTI 2025 Act, opening the doors for private sector participation. This synergy of indigenous material development, like the 'ApuRVA' alloy, and private capital is vital. To fully capitalize on this transition, India must ensure robust regulatory oversight and seamless technology handholding by institutions like BARC, ensuring that the 100 GW nuclear capacity target by 2047 is met safely and sustainably.

⚠️ Examiner Trap

Explain 3 common mistakes aspirants make on this topic.

Trap 1: Students often confuse the reactor types. The BSMR-200 and SMR-55 are based on the Pressurized Water Reactor (PWR) design, not India's traditional Pressurized Heavy Water Reactor (PHWR) design, although past PHWR expertise is being leveraged.
Trap 2: A common wrong assumption is that all three newly announced reactors are for generating electricity. The reality is that the HTGCR in Vizag is meant for generating process heat for hydrogen production, not electricity.
Trap 3: Many students miss the exact timeline targets when answering questions on this topic. Always remember that the 5 SMRs target is for 2033, while the 100 GW nuclear capacity target is for 2047.

🧭 Exam Tip

For Prelims, examiners will highly target the specific factual data: the Rs 20,000 crore budget, the 2033 deadline for 5 SMRs, the full form of the SHANTI Act, and the 'ApuRVA' alloy. For Mains (GS Paper 3), focus on the role of SMRs and the SHANTI Act as a case study for public-private partnerships in strategic sectors and climate change mitigation. In Interviews, you may be asked to defend the safety and economic viability of SMRs over traditional renewables like solar and wind. High-probability prediction: Expect a direct match-the-following question pairing the reactor name (BSMR-200, HTGCR) with its primary function (power generation vs hydrogen production) or location (Tarapur vs Vizag).

Nuclear Energy Mission & Bharat Small Modular Reactors

What Happened

When & Where

Who Is Involved

Department of Atomic Energy (DAE): The overarching nodal department overseeing the Nuclear Energy Mission.
Bhabha Atomic Research Centre (BARC): The premier research institution undertaking the design and development of the reactors.
Atomic Energy Commission (AEC): The apex body that provided the site approval and cleared administrative sanctions.
Empowered Technology Group (ETG): Granted crucial technology approvals for the BSMR-200.
Ministry of Environment, Forest and Climate Change (MoEF&CC): Provided the Terms of Reference (ToR) for environmental clearances for the Vizag site.
Private & Government Entities: Will participate in the nuclear sector via the new legislative framework of the SHANTI Act.

How It Works

Reactor Development: BARC is designing three variants: BSMR-200 (220 MWe), SMR-55 (55 MWe), and HTGCR (5 MWth).
Power Generation: BSMR-200 and SMR-55 function on a Pressurized Water Reactor (PWR) design. They will use pressurized water as a coolant to generate electricity efficiently at Tarapur.
Hydrogen Production: The HTGCR is not for electricity but acts as a nuclear heat source. It will be coupled with a copper-chlorine thermochemical cycle at Vizag to produce hydrogen.
Manufacturing: Indigenous manufacturing is leveraged by domestic industries using a special material called Advanced Purified Reactor Vessel Alloy (ApuRVA) for forgings and pressure vessels. Once financial sanction is completed, establishment takes 60 to 72 months.

Why It Matters

Economic Impact: The entry of private entities via the SHANTI Act will bring massive capital investments into the traditionally state-controlled nuclear sector.
Environmental Importance: SMRs offer a reliable, zero-carbon base-load power alternative to coal, and the HTGCR advances India's green hydrogen ambitions.
Strategic Policy: Meeting the 100 GW target by 2047 is critical for India's energy security and its commitment to achieving net-zero emissions by 2070. ⚠️ [SOURCE NEEDED]

Historical Background

1954: The Department of Atomic Energy (DAE) was established under the direct charge of the Prime Minister.
1969: Tarapur Atomic Power Station, India's first commercial nuclear facility, became operational.
2023: NITI Aayog released a report emphasizing the need for SMRs to replace aging thermal power plants and aid clean energy transition.

Previous Related Events

August 2024: The Union Government signaled its intention to amend the Atomic Energy Act of 1962 to allow private investment in non-core nuclear operations.
July 2025: The Union Budget 2025–26 officially launched the Nuclear Energy Mission with a massive capital outlay.
Late 2025: The Parliament enacted the SHANTI 2025 Act to legally enshrine the reforms for private participation in peaceful nuclear energy.

Static GK Connection

Union List (Schedule VII): Article 246 places "Atomic energy and mineral resources necessary for its production" under Entry 6 of the Union List, meaning only the Parliament can legislate on it.
Pressurized Water Reactor (PWR): A scientific concept where ordinary light water is used as both coolant and neutron moderator. It is kept under high pressure to prevent boiling, making it highly stable for commercial power generation.

India & World Comparison

Future Impact

Short Term (2033): Commissioning and operationalising at least five indigenous SMRs, proving the commercial viability of ApuRVA and the PWR design.
Medium Term: Notification and full enforcement of the SHANTI Act will trigger the formation of joint ventures between public sector undertakings (like NPCIL) and private corporations.
Long Term (2047): Hitting the 100 GW nuclear power generation mark to fulfill the energy demands of 'Vikshit Bharat'.

🔑 Key Points for Revision

Rs 20,000 crore allocated in Budget 2025-26 for the Nuclear Energy Mission.
Target set to operationalise at least five SMRs by the year 2033.
Long-term national goal is to generate 100 GW of nuclear power by 2047.
BARC is developing three indigenous reactors: BSMR-200, SMR-55, and HTGCR.
BSMR-200 (220 MWe) and SMR-55 (55 MWe) are Pressurized Water Reactors (PWR).
Both BSMR-200 and SMR-55 will be located at Tarapur, Maharashtra.
HTGCR (5 MWth) is a High Temperature Gas Cooled Reactor located in Vizag.
HTGCR is not for power; it generates process heat for hydrogen production.
HTGCR will be coupled with a copper-chlorine thermochemical cycle.
The SHANTI 2025 Act permits private entity participation in the nuclear sector.
SHANTI stands for Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India.
SMRs take roughly 60 to 72 months for establishment post-sanction.
ApuRVA (Advanced Purified Reactor Vessel Alloy) is the new indigenous special material.
Atomic Energy Commission (AEC) is the apex body approving project sites.
Atomic energy falls strictly under the Union List of the Seventh Schedule.

🧠 Concept Link (Static GK Deep Dive)

Core Concept: Small Modular Reactors (SMRs)

Definition: Advanced nuclear reactors with a capacity of up to 300 MW(e) per unit, designed to be built in factories and assembled on-site.
Constitutional / Legal Basis: Regulated under the Atomic Energy Act, 1962, and now the SHANTI Act 2025. Entry 6 of the Union List.
Scientific / Economic Principle: Capitalizes on economies of multiples rather than economies of scale. Modular manufacturing reduces capital cost and construction time.
How it connects to this event: BARC's development of BSMR-200 and SMR-55 represents India's official entry into indigenous SMR deployment.
Origin & History: The concept gained global traction in the 2010s to address the high capital costs and long delays of traditional large nuclear plants. ⚠️ [SOURCE NEEDED]
Key milestone 1: In 2020, Russia commissioned the Akademik Lomonosov, the world’s first floating nuclear power plant utilizing SMR technology. ⚠️ [SOURCE NEEDED]
Key milestone 2: The Union Budget 2025-26 formally allocating Rs 20,000 crore for SMR development in India.
Related Acts / Schemes / Treaties: Atomic Energy Act 1962, SHANTI 2025 Act, National Green Hydrogen Mission.
Nodal Ministry / Body: Department of Atomic Energy (DAE) and Bhabha Atomic Research Centre (BARC).
India-specific relevance: India has a vast, aging fleet of coal plants. SMRs provide a plug-and-play carbon-free replacement that fits into existing power grid nodes.
Global comparison: While China and Russia lead in early commercial SMRs, India's model emphasizes indigenous supply chains and private sector partnerships.
Data point: SMRs require a construction period of just 60 to 72 months, nearly half the time needed for conventional 700+ MW reactors.
Common exam angle: UPSC frequently tests the difference between conventional reactors, SMRs, and Fast Breeder Reactors, particularly focusing on coolants and moderators.
Easy memory hook: SMR = Small (under 300MW), Modular (factory-built), Reliable (passive safety features).

❓ Practice MCQs

Q1. Under the Nuclear Energy Mission, how much budget was allocated in the Union Budget 2025-26 for Small Modular Reactors? [Easy]

A) Rs 10,000 crore

B) Rs 15,000 crore

C) Rs 20,000 crore

D) Rs 25,000 crore

Answer: C

Explanation: The Union Budget 2025-26 allocated a total budgetary provision of Rs 20,000 crore for the design, development, and deployment of SMRs.

Q2. What is the full form of the recently enacted SHANTI 2025 Act? [Easy]

A) Sustainable Harnessing and Advancement of Nuclear Technology in India Act

B) Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India Act

C) Strategic Harnessing of Atomic and Nuclear Technologies for India Act

D) Standardized Heating and Nuclear Thermal Infrastructure Act

Answer: B

Explanation: SHANTI stands for Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India, an act enabling private participation.

Q3. Where is the proposed site for the 220 MWe Bharat Small Modular Reactor (BSMR-200)? [Moderate]

A) Kalpakkam, Tamil Nadu

B) Kakrapar, Gujarat

C) Tarapur, Maharashtra

D) Vizag, Andhra Pradesh

Answer: C

Explanation: The Atomic Energy Commission has approved Tarapur, Maharashtra as the site for both the BSMR-200 and the SMR-55.

Q4. What is the primary purpose of the High Temperature Gas Cooled Reactor (HTGCR) being developed at Vizag? [Moderate]

A) Generation of electricity for the national grid

B) Providing propulsion for nuclear submarines

C) Desalination of seawater

D) Generation of process heat for hydrogen production

Answer: D

Explanation: The HTGCR has a capacity up to 5 MWth and acts as a nuclear heat source to be coupled with a thermochemical cycle for hydrogen production.

Q5. Which thermochemical cycle is proposed to be coupled with the HTGCR for hydrogen production? [Moderate]

A) Sulfur-iodine cycle

B) Copper-chlorine cycle

C) Zinc-zinc oxide cycle

D) Iron-oxide cycle

Answer: B

Explanation: The official statement noted that the HTGCR will be coupled with a suitable thermochemical cycle, such as the copper-chlorine cycle.

Q6. By which year does the Indian government aim to develop and operationalise at least five indigenous SMRs? [Tricky]

A) 2030

B) 2033

C) 2035

D) 2047

Answer: B

Explanation: The Rs 20,000 crore allocation aims to support the objective of developing and operationalising at least five indigenous SMRs by 2033.

Q7. What is the name of the special material indigenously developed for forging the reactor pressure vessels of the new SMRs? [Tricky]

A) Bhabhatron-X

B) ApuRVA

C) Zircaloy-4

D) Inconel-718

Answer: B

Explanation: The special material Advanced Purified Reactor Vessel Alloy (ApuRVA) has been developed in collaboration with Indian industries.

Q8. According to the government's long-term vision, what is the target for total nuclear power generation capacity by the year 2047? [Tricky]

A) 50 GW

B) 75 GW

C) 100 GW

D) 150 GW

Answer: C

Explanation: The government has set an ambitious goal of generating 100 GW of nuclear power by the year 2047 for Vikshit Bharat.

📜 Previous Year Question Style (PYQ)

PYQ 1:

Which of the following bodies is responsible for granting the final administrative and financial sanction clearance for the engineering and construction of the BSMR-200?

A) Bhabha Atomic Research Centre (BARC)

B) Atomic Energy Commission (AEC)

C) NITI Aayog

D) Ministry of Environment, Forest and Climate Change (MoEF&CC)

Answer: B

Explanation: The proposal for the Administrative & Financial sanction for the BSMR-200 is cleared by the Atomic Energy Commission (AEC).

PYQ 2:

Consider the following statements regarding India's Small Modular Reactor (SMR) development program:

Which of the above statements is/are correct?

A) 1 and 2 only

B) 2 and 3 only

C) 1 and 3 only

D) 1, 2, and 3

Answer: B

PYQ 3:

Assertion (A): The High Temperature Gas Cooled Reactor (HTGCR) developed by BARC is designed primarily to boost India's electrical base-load capacity.

Reason (R): The HTGCR will be coupled with a copper-chlorine cycle.

Choose the correct option:

A) Both A and R are true, and R is the correct explanation of A.

B) Both A and R are true, but R is not the correct explanation of A.

C) A is true, but R is false.

D) A is false, but R is true.

Answer: D

✍️ Mains Answer Pointers

Question 1 (150 words): Analyze the significance of the SHANTI 2025 Act in transforming India's nuclear energy landscape.

⚠️ Examiner Trap

Explain 3 common mistakes aspirants make on this topic.

Trap 1: Students often confuse the reactor types. The BSMR-200 and SMR-55 are based on the Pressurized Water Reactor (PWR) design, not India's traditional Pressurized Heavy Water Reactor (PHWR) design, although past PHWR expertise is being leveraged.
Trap 2: A common wrong assumption is that all three newly announced reactors are for generating electricity. The reality is that the HTGCR in Vizag is meant for generating process heat for hydrogen production, not electricity.
Trap 3: Many students miss the exact timeline targets when answering questions on this topic. Always remember that the 5 SMRs target is for 2033, while the 100 GW nuclear capacity target is for 2047.