PARLIAMENT QUESTION: DEPLOYMENT OF SMALL MODULAR REACTORS

1. At a Glance

Small Modular Reactors (SMRs) are compact nuclear reactors (typically ≤300 MWe) that are factory-fabricated, modular, and deployable at brownfield/remote sites — central to India's Nuclear Energy Mission (NEM) announced in Union Budget 2025–26 [S2].
Target: 100 GWe nuclear capacity by 2047, supporting Viksit Bharat and net-zero by 2070 [S2].
Aspirants should track this as a live Prelims/Mains topic combining energy policy, budget allocation, legislative reform (SHANTI Act) and technology (BARC-designed reactors).

2. Why in the News

Repeated Lok Sabha/Rajya Sabha Parliament Questions (2025–26) on SMR deployment progress, cost, and siting — this note is based on the PQ answered 05 Aug 2026 [S1].
Passage of the SHANTI Act, 2025, enabling limited private participation in nuclear energy [S4].
Ongoing Budget 2025–26 follow-through with ₹20,000 crore earmarked for SMR R&D and deployment [S2].

3. Background & Evolution

Union Budget 2025–26: NEM announced with objective to design, develop, and operationalise at least 5 indigenous SMRs by 2033 [S1][S2].
Two-pronged strategy adopted: (i) large reactors — 700 MWe indigenous PHWRs + imported large reactor designs at greenfield sites; (ii) SMRs at brownfield sites [S2].
BARC (Bhabha Atomic Research Centre) tasked with design, development and deployment of three reactor types: BSMR-200, SMR-55, and HTGCR [S1].
Enactment of the SHANTI Act, 2025 ("Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India") — consolidates/modernises nuclear legal framework, allows limited private entry under regulatory oversight [S4].

4. Core Static Facts

Item	Detail
Nodal ministry/body	Department of Atomic Energy (DAE); design by BARC [S1]
Mission	Nuclear Energy Mission (NEM), Budget 2025–26 [S2]
Target capacity	100 GWe by 2047 [S2]
SMR target	≥5 indigenous SMRs operational by 2033 [S2]
Budgetary provision	₹20,000 crore for SMR R&D and deployment [S1][S2]
BSMR-200	220 MWe Bharat Small Modular Reactor; capacity augmentation to 300 MWe envisaged; DPR approved, financial sanction awaited; tentative cost ~₹27 Cr/MWe [S1]
SMR-55	55 MWe reactor; in-principle approved; design detailing/prototype equipment development in progress [S1]
HTGCR	High Temperature Gas Cooled Reactor, up to 5 MWth, for hydrogen production [S1]
Site — BSMR-200 & SMR-55	Tarapur Atomic Power Station, Maharashtra [S1]
Site — HTGCR	Vizag (BARC facility), Andhra Pradesh [S1]
Enabling law	SHANTI Act, 2025 — allows private participation in nuclear sector under regulatory oversight [S4]

5. Multi-Dimensional Analysis

Economic - SMRs offer lower upfront capital per unit than large reactors, enabling private/industrial captive investment under SHANTI Act framework [S4]. - Envisaged use as captive power for energy-intensive industries, aiding decarbonisation of hard-to-abate sectors [S2].

Environmental - Positioned as tool for repurposing retiring fossil-fuel plants — reduces stranded-asset and land-acquisition issues while cutting emissions [S2]. - Supports India's net-zero by 2070 commitment [S2].

Scientific/Technological - Indigenous design effort by BARC across three distinct reactor classes (PWR-type BSMR-200/SMR-55, gas-cooled HTGCR) [S1]. - HTGCR's hydrogen-production application links nuclear energy to the National Green Hydrogen Mission ecosystem [S1].

Legal/Governance - SHANTI Act, 2025 marks first major modernisation of nuclear legal framework to permit private sector entry, previously a state monopoly under the Atomic Energy Act, 1962 [S4].

Administrative - Deployment strategy explicitly split by site type: brownfield (SMRs) vs greenfield (large reactors) — signals administrative sequencing to manage land and grid constraints [S2]. - Financial sanction for BSMR-200 still pending despite DPR approval — indicates implementation bottleneck at project-clearance stage [S1].

6. Recent Developments (last 12–18 months)

Budget 2025–26 (Feb 2025): NEM announced with ₹20,000 crore allocation [S2].
SHANTI Act, 2025 enacted, opening nuclear sector to limited private participation [S4].
Multiple Parliament Questions through 2025–26 tracking SMR project status (PRID 2223310, 2223305, 2238907, 2238303, 2247967, 2287710) culminating in the 05 Aug 2026 PQ answer confirming site allocation and cost details [S1].
DPR for BSMR-200 approved; financial sanction stage reached as of Aug 2026 [S1].

7. Prelims Hooks

NEM was announced in Union Budget 2025–26 [S2].
Target: 100 GWe nuclear capacity by 2047 [S2].
SMR target: at least 5 indigenous SMRs operational by 2033 [S2].
Budgetary provision for SMRs: ₹20,000 crore [S2].
BSMR-200 = Bharat Small Modular Reactor, capacity 220 MWe, augmentable to 300 MWe [S1].
SMR-55 capacity = 55 MWe [S1].
HTGCR capacity = up to 5 MWth, used for hydrogen production [S1].
BSMR-200 and SMR-55 lead units sited at Tarapur Atomic Power Station, Maharashtra [S1].
HTGCR sited at Vizag (BARC), Andhra Pradesh [S1].
Designing agency for all three SMR types: BARC, not NPCIL [S1].
Tentative cost of BSMR-200 demonstration unit: ~₹27 crore/MWe [S1].
SHANTI Act, 2025 full form: Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India [S4].
SHANTI Act enables limited private participation in India's nuclear sector [S4].
Two-pronged nuclear strategy: large reactors (700 MWe PHWRs + imported designs) at greenfield sites; SMRs at brownfield sites [S2].

8. Mains Relevance

GS-III: Science & Technology indigenisation; Infrastructure — Energy; Environment & Climate Change (decarbonisation, net-zero).
GS-II: Government policies/interventions for development (NEM as a mission-mode programme); role of legislation (SHANTI Act) in sectoral reform.
Possible question stems: 1. "Discuss the strategic significance of Small Modular Reactors in India's pursuit of 100 GWe nuclear capacity by 2047. What are the challenges in their deployment?" 2. "Examine how the SHANTI Act, 2025 changes the private sector's role in India's nuclear energy landscape." 3. "SMRs are being positioned as a bridge between fossil-fuel phase-out and clean energy transition. Critically evaluate."

9. Related Topics to Study Next

SHANTI Act, 2025 — legal backbone enabling private nuclear participation.
National Green Hydrogen Mission — linked via HTGCR's hydrogen application.
Atomic Energy Act, 1962 — prior legal regime being modernised.
Panchamrit/Net-Zero 2070 commitments — climate framing for nuclear expansion.
PHWR fleet expansion (700 MWe units) — parallel large-reactor strategy.
Nuclear Power Corporation of India Ltd (NPCIL) — operational counterpart to BARC's R&D role.
India's civil nuclear cooperation agreements (US, France, Russia) — relevant to imported large reactor designs.

10. Common Errors / Trap Areas

Confusing BARC (design/R&D agency) with NPCIL (operating utility) — SMR design work here is explicitly BARC's [S1].
Mixing up capacities: BSMR-200 = 220 MWe (not 200 MWe as name suggests; augmentable to 300 MWe), SMR-55 = 55 MWe [S1].
Assuming SMR target year is 2047 — the 5-SMR indigenous target is 2033, distinct from the 2047 100 GWe overall target [S2].
Misattributing HTGCR's site to Tarapur — it is actually sited at Vizag, while BSMR-200/SMR-55 are at Tarapur [S1].
Confusing SHANTI Act, 2025 with the older Atomic Energy Act, 1962 — SHANTI is the newer, private-participation-enabling law [S4].

11. Sources

[S1] PARLIAMENT QUESTION: DEPLOYMENT OF SMALL MODULAR REACTORS — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2294813 — (tier: 1)
[S2] PARLIAMENT QUESTION: NUCLEAR ENERGY MISSION FOR VIKSIT BHARAT — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2287710&reg=48&lang=1 — (tier: 1)
[S3] Nuclear Power in Union Budget 2025-26 (Department of Atomic Energy) — https://static.pib.gov.in/WriteReadData/specificdocs/documents/2025/feb/doc202523495401.pdf — (tier: 1)
[S4] The Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India (SHANTI) Bill, 2025 — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2206598&reg=3&lang=2 — (tier: 1)