PARLIAMENT QUESTION: SMALL MODULAR REACTORS FOR CLEAN AND LOW-CARBON ENERGY

1. At a Glance

• SMRs are advanced nuclear reactors producing up to 300 MWe per module, factory-built and shipped for on-site assembly, with passive safety features and suitability for cogeneration/desalination/hydrogen [S3].
• India's Department of Atomic Energy (DAE), via BARC and NPCIL, is designing indigenous SMRs (BSMR-200, SMR-55) under the Nuclear Energy Mission to decarbonise energy-intensive sectors, repurpose retiring thermal plants, and electrify off-grid areas [S1][S2].
• Aspirant relevance: intersects GS-III (energy, environment, S&T) and India's net-zero by 2070 commitment.

2. Why in the News

• 04 Feb 2026: PIB (Department of Atomic Energy) released a Parliament Question reply detailing BARC's SMR programme — BSMR-200 (220 MWe) and SMR-55 (55 MWe) lead units to be sited at Tarapur, Maharashtra; plus a 5 MWth high-temperature gas-cooled reactor for hydrogen [S1].
• Union Budget 2025-26: ₹20,000 crore outlay announced under the Nuclear Energy Mission for SMR R&D, targeting at least 5 indigenous SMRs operational by 2033 [S2].

3. Background & Evolution

• India's 3-stage nuclear programme (Bhabha, 1954) — PHWR → FBR → Thorium — provides the parent framework.
• 2024 Interim Budget / July 2024 Budget: FM Sitharaman announced govt-private partnership for Bharat Small Reactors and R&D of Bharat Small Modular Reactor [S2].
• Feb 2025 Budget: Formal Nuclear Energy Mission launched with ₹20,000 crore SMR R&D corpus; target of 100 GW nuclear capacity by 2047 [S2].
• Feb 2026: BARC formally announced BSMR-200 and SMR-55 designs with Tarapur lead-unit siting [S1].

4. Core Static Facts

• Parent body: Department of Atomic Energy (DAE), under the Prime Minister directly (not a Cabinet ministry) [S1].
• Implementing agencies: BARC (design/R&D) + NPCIL (deployment) [S2].
• Statutory backbone: Atomic Energy Act, 1962; Civil Liability for Nuclear Damage Act, 2010.
• IAEA SMR definition: ≤ 300 MWe per module; factory-fabricated, passive safety, modular deployment [S3].
• BSMR-200: 220 MWe; lead unit cost ≈ ₹5,700 crore; 6 years to demo start-up, commercial ops in year 7 post-financial approval [S2].
• SMR-55: 55 MWe; lead unit at Tarapur [S1].
• HTGR: up to 5 MWth for hydrogen generation [S1].
• Nuclear Energy Mission outlay: ₹20,000 crore (Budget 2025-26) [S2].
• Targets: ≥5 indigenous SMRs by 2033; 100 GW nuclear by 2047 [S2].
• Global: 80+ SMR designs worldwide in various stages [S3].

5. Multi-Dimensional Analysis

Environmental / Climate - Supports India's Panchamrit targets (500 GW non-fossil by 2030, net-zero 2070) by displacing coal baseload [S2]. - Repurposing retiring coal plants (BARC mandate) reuses grid + transmission, easing just-transition [S1].

Scientific / Technological - Modularity → factory QA, lower on-site risk; passive safety removes operator-action dependency [S3]. - HTGR enables green hydrogen via thermochemical splitting (5 MWth pilot) [S1].

Economic - ₹5,700 cr per 220 MWe unit ⇒ ~₹26 cr/MW — competitive with large PWRs once serialised [S2]. - Captive power for steel, aluminium, refineries; cuts industrial Scope-1 emissions [S1].

Geopolitical / Strategic - Reduces dependence on imported uranium fuel cycles via indigenous design; aligns with IAEA SMR Platform cooperation [S3]. - CLNDA liability cap remains a foreign-vendor friction point; SMRs being indigenous side-step this.

Legal / Constitutional - Atomic Energy is Union List Entry 6; states have no say in siting. - 2024 push to amend Atomic Energy Act, 1962 and CLNDA, 2010 to allow private-sector participation flagged in Budget speeches [S2].

6. Recent Developments (last 12-18 months)

• Jul 2024: Budget announces Bharat Small Reactors + BSMR R&D partnership [S2].
• Feb 2025: Nuclear Energy Mission notified; ₹20,000 cr allocated [S2].
• Feb 2026 (04 Feb): BARC unveils BSMR-200 (220 MWe), SMR-55, and 5 MWth HTGR for hydrogen; Tarapur designated lead site [S1].

7. Prelims Hooks

• IAEA defines SMRs as reactors of up to 300 MWe per module [S3].
• BSMR-200 capacity: 220 MWe [S1].
• SMR-55 capacity: 55 MWe [S1].
• Lead-unit site for both BSMR-200 and SMR-55: Tarapur Atomic Power Station, Maharashtra [S1].
• HTGR planned: up to 5 MWth, purpose = hydrogen generation [S1].
• Nuclear Energy Mission outlay: ₹20,000 crore (Union Budget 2025-26) [S2].
• Indigenous SMR target year: 2033 [S1].
• 2047 nuclear capacity target: 100 GW [S2].
• BSMR-200 lead-unit cost: ~₹5,700 crore; commissioning year 7 post-approval [S2].
• Design lead: BARC; deployment lead: NPCIL [S2].
• Governing statutes: Atomic Energy Act, 1962 + CLNDA, 2010.
• Atomic Energy = Union List Entry 6 of 7th Schedule.

8. Mains Relevance

• GS-III: Infrastructure — Energy; Environment — climate change mitigation; Science & Tech — indigenous innovation.
• GS-II: Government policies (Nuclear Energy Mission), Centre-State (Union List).

Probable stems 1. "Small Modular Reactors can be a game-changer for India's energy transition but face techno-economic and legal hurdles. Discuss." (250 words) 2. "Evaluate the role of the Nuclear Energy Mission in achieving India's net-zero 2070 target." (150 words) 3. "Examine the need to amend the Atomic Energy Act, 1962 and CLNDA, 2010 in the context of SMR deployment." (250 words)

9. Related Topics to Study Next

• India's 3-stage nuclear programme — parent doctrine for fuel cycle.
• Nuclear Energy Mission & Budget 2025-26 — financial architecture.
• Civil Liability for Nuclear Damage Act, 2010 — vendor liability debate.
• Panchamrit & Net-Zero 2070 — policy umbrella.
• Green Hydrogen Mission — HTGR linkage.
• Tarapur Atomic Power Station — historical first commercial NPP (1969).
• IAEA & India's safeguards agreement (2014) — international architecture.
• Just Transition / coal phase-down — repurposing rationale.

10. Common Errors / Trap Areas

• Confusing MWe (electrical) with MWth (thermal): HTGR is 5 MWth, BSMR-200 is 220 MWe [S1].
• DAE reports to the PM directly, not to MoEFCC or MoP.
• IAEA's SMR ceiling is 300 MWe per module, not 700 MWe (that's mid-size) [S3].
• BSMR ≠ BSR: Bharat Small Reactor (BSR) is a 220 MWe PHWR variant for captive use; BSMR is the modular R&D track — Budget 2024 named both separately.
• Tarapur lead site, not Kudankulam or Kakrapar.

11. Sources

• [S1] PARLIAMENT QUESTION: SMALL MODULAR REACTORS FOR CLEAN AND LOW-CARBON ENERGY — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2223305 — (tier 1)
• [S2] Nuclear Power in Union Budget 2025-26 / PQ: Nuclear Energy Mission & BSMR progress — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2099244 ; https://www.pib.gov.in/PressReleasePage.aspx?PRID=2118377 ; https://www.pib.gov.in/PressReleasePage.aspx?PRID=2113254 — (tier 1)
• [S3] IAEA — What are Small Modular Reactors (SMRs)? — https://www.iaea.org/newscenter/news/what-are-small-modular-reactors-smrs — (tier 2)