India aims to scale its nuclear power capacity from the current 8.8 GW to a massive 100 GW by the centenary of its independence in 2047. The Central Electricity Authority (CEA) unveiled this strategic target during the “India’s 100 GW Nuclear Power Roadmap” session in New Delhi, charting a clear course for the nation’s clean energy transition. Achieving this monumental expansion will require a capital injection of approximately ₹20 lakh crore, laying the groundwork for India’s long-term goal of reaching net-zero emissions by 2070.
The Vision for 2047: Why 100 GW
To transform its electricity grid and phase down dependency on fossil fuels, India is fundamentally restructuring its power generation mix. Scaling from the current base of 8.8 GW to 100 GW over the next two decades demands an unprecedented rate of expansion. Estimates suggest that the country must add approximately 4.14 GW of nuclear capacity annually to hit the centenary milestone.
This aggressive push is central to India’s pledge, made at the COP26 summit, to achieve a net-zero carbon economy by 2070. Since nuclear power provides a stable, continuous supply of electricity (unlike inconsistent solar and wind sources), it is viewed as the optimal baseload replacement for retiring coal-fired thermal power plants.
Financial Requirements and Investment
The financial scale of this roadmap is immense. The CEA estimates that establishing the extra capacity will require a minimum investment of ₹20 lakh crore. This calculation is based on an established baseline cost of ₹22 crore per Megawatt (MW) for new nuclear infrastructure.
To mobilize such massive capital, the government is focusing on crucial legislative and policy reforms. By streamlining standard procedures and introducing enabling provisions, planners expect 10 to 12 private and foreign entities to eventually enter the nuclear energy sector. Their participation will be crucial not only for funding but also for bringing in advanced technologies and improving cost efficiencies.
Technological Pathways to Expansion
India’s strategy to reach the 100 GW milestone relies on a two-pronged technological approach. First, the country is prioritizing the rapid deployment of its indigenous 700 MWe Pressurised Heavy Water Reactors (PHWRs) at greenfield sites, which will form the bulk of the larger base-load grid additions. Second, the roadmap integrates advanced small-scale systems, including Bharat Small Modular Reactors (BSMRs) and SMR-55 units, which are highly adaptable and can be situated in locations where massive reactors are not feasible.
These technological choices are firmly rooted in India’s historic Three-Stage Nuclear Power Programme. Formulated by Homi Bhabha in the 1950s, this programme was designed to secure the country’s long-term energy independence by utilizing its vast coastal reserves of thorium instead of relying heavily on imported uranium. A major validating step in this direction was the recent criticality of the 500 MWe Prototype Fast Breeder Reactor (PFBR) at Kalpakkam, which anchors the critical second stage of the programme.
Institutional Roles in the Power Sector
Executing a transition of this scale requires strict coordination among several specialized government bodies:
| Organization | Established / Legal Framework | Core Responsibility |
|---|---|---|
| Central Electricity Authority (CEA) | Constituted under the Electricity Act, 2003 (replacing the 1948 Supply Act). Headquartered in New Delhi. | A statutory body acting as the primary technical advisor to the Ministry of Power. It formulates the National Electricity Plan to integrate new generation targets. |
| Nuclear Power Corporation of India Limited (NPCIL) | A Public Sector Enterprise based in Mumbai, created in 1987. | Operates the country’s commercial nuclear power plants and is responsible for scaling up current reactor deployments. |
| Department of Atomic Energy (DAE) | Established in 1954, directly under the Prime Minister. | Sets the overarching commercial, safety, and strategic framework for all of India’s nuclear energy operations. |
Key Takeaways
- The Central Electricity Authority (CEA) has drafted a roadmap to scale India’s nuclear capacity from 8.8 GW to 100 GW by 2047.
- This expansion aligns with India’s commitment to achieve a net-zero carbon economy by 2070 by replacing retiring coal-fired thermal power plants.
- The ambitious target will demand a baseline capital investment of ₹20 lakh crore, estimated at ₹22 crore per Megawatt (MW).
- Base-load additions will heavily rely on deploying indigenous 700 MWe Pressurised Heavy Water Reactors (PHWRs) alongside Bharat Small Modular Reactors (BSMRs).
- The Department of Atomic Energy (DAE), established in 1954 and headquartered in Mumbai, oversees the broader strategic framework for this operational scale-up.
