PARLIAMENT QUESTION: GENERATION OF NUCLEAR POWER

1. At a Glance

• India currently operates 24 nuclear power reactors with a combined installed capacity of 8,780 MW [1].
• Nuclear plants have consistently outperformed thermal plants on efficiency (PLF) between 2019-20 and 2023-24, barring one new unit [1].
• Government has committed to tripling nuclear capacity by 2031-32 and reaching 100 GW by 2047 under the Nuclear Energy Mission — a recurring UPSC Prelims/Mains theme on energy security and clean energy transition [2][5].
• Frequently tested via Rajya Sabha/Lok Sabha written replies from the Department of Atomic Energy (DAE), under the Prime Minister's Office [1].

2. Why in the News

• On 30 July 2026, Union Minister of State (PMO, Atomic Energy) Dr. Jitendra Singh gave a written reply in the Rajya Sabha stating India has 24 commercial nuclear reactors totalling 8,780 MW, with nuclear Plant Load Factor (PLF) exceeding average all-India thermal PLF (excl. gas) for 2019-20 to 2023-24, except KAPS-4 (commissioned March 2024) [1].

3. Background & Evolution

• India's civil nuclear programme originates from the Atomic Energy Act, 1948 (later 1962), under DAE, established 1954.
• NPCIL (Nuclear Power Corporation of India Ltd) is the public sector unit that builds/operates commercial reactors.
• June 2017: Government accorded administrative approval and financial sanction for 10 indigenous 700 MW PHWRs in "fleet mode" [4].
• 2023-24: KAPP-3 and KAPP-4 (Kakrapar, Gujarat) began commercial operation, including KAPS-4 in March 2024 [1][4].
• April 2025: RAPP-7 achieved criticality/commissioning; RAPP-8 under construction [4].
• Union Budget 2025-26: Nuclear Energy Mission announced, targeting 100 GW by 2047 [5][3].

4. Core Static Facts

Parameter	Detail	Source
Reactors in operation	24	[1]
Current installed capacity	8,780 MW	[1]
Reporting ministry	DAE, under PMO (MoS: Dr. Jitendra Singh)	[1]
Answering House	Rajya Sabha	[1]
Reply date	30 July 2026	[1]
Target capacity by 2031-32	~22,480 MW (from ~7,180–8,180 MW base) — roughly tripling	[2][3]
Long-term target	100 GW by 2047 (Nuclear Energy Mission)	[5]
Reactors under construction	9 reactors, 7,300 MW	[3]
Reactors under pre-project activities	12 reactors, 8,000 MW	[3]
Total reactors in pipeline	21 reactors, 15,300 MW	[3]
Implementing PSU	NPCIL	[4]
Standard indigenous reactor type	700 MW PHWR (fleet mode, approved 2017)	[4]
Import-cooperation reactor type	1,000 MW class	[2]
Key upcoming sites	Kaiga (Units 5,6), Chutka (MP, 2x700 MW), Mahi Banswara (Rajasthan, 4x700 MW), Gorakhpur	[4]

5. Multi-Dimensional Analysis

Economic

• Nuclear PLF outperforming thermal PLF (excl. gas) signals better capacity utilisation and lower per-unit fixed-cost burden [1].
• Nuclear Energy Mission (Budget 2025-26) signals large capital allocation and private/JV participation push (e.g., NTPC-NPCIL JV) [5].

Environmental

• Nuclear expansion supports India's Net Zero by 2070 and Nationally Determined Contribution (NDC) commitments by displacing coal-based thermal generation.

Scientific/Technological

• Shift from imported light water reactors toward indigenous 700 MW PHWR fleet-mode construction reduces import dependency [4].
• International cooperation enables 1,000 MW class reactors (e.g., Kudankulam-type Russian collaboration) [2].

Administrative

• Bottlenecks: land acquisition, rehabilitation & resettlement, and environmental clearance are cited as ongoing constraints at Chutka/Mahi Banswara/Gorakhpur/Kaiga sites [4].
• JV model (e.g., NTPC-NPCIL) marks a departure from NPCIL's traditional monopoly, part of a policy shift allowing PSU/private participation in nuclear power generation [4].

Geopolitical/Strategic

• Reactor technology partly sourced through international cooperation (larger 1,000 MW units), tying nuclear expansion to bilateral civil nuclear agreements [2].

6. Recent Developments (last 12-18 months)

• March 2024: KAPS-4 (Kakrapar) commences commercial operation [1].
• April 2025: RAPP-7 (Rajasthan) achieves criticality / fuel loading completed [4].
• Union Budget 2025-26: Nuclear Energy Mission launched, targeting 100 GW capacity by 2047 [5][3].
• March 2026: Construction begins on Kaiga Units 5 and 6 (IPHWR-700) [4].
• 30 July 2026: Rajya Sabha written reply confirms 24 reactors, 8,780 MW, and PLF comparison data tabled [1].

7. Prelims Hooks

• India presently has 24 commercial nuclear reactors (as of the 30 July 2026 RS reply) [1].
• Total current nuclear capacity: 8,780 MW [1].
• KAPS-4 at Kakrapar (Gujarat) commenced commercial operation in March 2024 — the sole exception in the PLF comparison [1].
• Answering ministry for this PQ: Department of Atomic Energy, administratively under the Prime Minister's Office — not the Ministry of Power [1].
• Minister who answered: Dr. Jitendra Singh, MoS for PMO, Personnel, Public Grievances & Pensions, Atomic Energy and Space [1].
• House: Rajya Sabha (written reply) [1].
• Nuclear PLF has generally exceeded average all-India thermal PLF (excluding gas-based plants) during 2019-20 to 2023-24 [1].
• Data source for thermal PLF comparison: CEA (Central Electricity Authority) report [1].
• India's target: triple nuclear capacity to ~22,480 MW by 2031-32 [2][3].
• Long-term target: 100 GW nuclear capacity by 2047 under the Nuclear Energy Mission (Budget 2025-26) [5].
• Standard indigenous reactor design being fleet-built: 700 MW PHWR (Pressurised Heavy Water Reactor) [4].
• Ten indigenous 700 MW PHWRs approved in fleet mode in June 2017 [4].
• Implementing PSU: NPCIL (Nuclear Power Corporation of India Limited) [4].
• New JV model: NTPC-NPCIL agreement for joint nuclear plant development [4].
• Upcoming PHWR sites: Chutka (MP), Mahi Banswara (Rajasthan), Kaiga (Karnataka), Gorakhpur (Haryana) [4].

8. Mains Relevance

• GS-III: Infrastructure — Energy; Science & Technology — indigenous technology development; Environment — clean energy transition/Net Zero.
• GS-II: Government policies and interventions (Nuclear Energy Mission); international relations (nuclear cooperation agreements) — secondary linkage.
• Possible Mains stems: 1. "Discuss the role of nuclear energy in India's clean energy transition. Examine bottlenecks in scaling up nuclear capacity to meet the 2047 target." (GS-III) 2. "Critically evaluate India's shift from a state-monopoly to a joint-venture model (NTPC-NPCIL) in nuclear power generation." (GS-III) 3. "How does India's civil nuclear energy expansion intersect with its international strategic partnerships? Discuss with examples." (GS-II/III)

9. Related Topics to Study Next

• Nuclear Energy Mission (Budget 2025-26) — direct policy vehicle driving the 100 GW target [5].
• Atomic Energy Act, 1962 & Civil Liability for Nuclear Damage Act, 2010 — legal framework and liability regime constraining private investment.
• Kudankulam Nuclear Power Plant / India-Russia nuclear cooperation — example of international-cooperation reactor route.
• Small Modular Reactors (SMRs) — emerging global and Indian policy focus, linked to Nuclear Energy Mission.
• India's Net Zero 2070 commitment & NDCs — climate policy context for nuclear expansion.
• CEA reports on PLF/generation mix — statistical source underlying this PQ [1].
• NPCIL-NTPC JV and private sector role in nuclear power — administrative/governance angle [4].
• PHWR vs LWR reactor technology — technical distinction relevant to indigenous vs imported reactors.

10. Common Errors / Trap Areas

• Confusing the nodal ministry: nuclear power falls under DAE (under PMO), NOT the Ministry of Power — a common trap.
• Mixing up capacity figures across different years' PQs (7,180 MW / 8,180 MW / 8,780 MW) — always check the reply date [1][2].
• Confusing PHWR (700 MW indigenous) with LWR/imported 1,000 MW class reactors — different technology and cooperation routes [2][4].
• Assuming NPCIL is the sole implementing agency — the NTPC-NPCIL JV marks a policy shift for some upcoming projects [4].
• Conflating the 2031-32 target (~22,480 MW) with the 2047 target (100 GW) — these are distinct milestones under different announcements [3][5].