List of Nuclear Power Plants in India 2025

How Many Nuclear Power Plants are there in India 

As of 2025, India has 22 operational nuclear reactors located at 7 nuclear power plants across the country. These reactors collectively have an installed capacity of approximately 7,480 MW. India continues to expand its nuclear energy program, with several additional reactors under construction or planned, aiming to achieve a capacity of 20,000 MW by 2030.

List of Nuclear Power Plants in India

 

Tarapur Nuclear Power Plant-1 (TAPS-1)

India’s first nuclear power plant, TAPS-1, began operations in October 1969 in Boisar, Maharashtra. This Boiling Water Reactor (BWR) with 160 MWe capacity marked a significant milestone in India's energy development. It set the foundation for the country's nuclear energy initiatives, showcasing early success in atomic power technology.

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Tarapur Nuclear Power Plant-2 (TAPS-2)

Operational alongside TAPS-1 in Boisar, Maharashtra, since October 1969, TAPS-2 is a Boiling Water Reactor with 160 MWe capacity. As one of India’s earliest reactors, it played a pivotal role in establishing nuclear energy as a reliable power source for industrial and domestic consumption in Maharashtra and nearby regions.

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Rajasthan Nuclear Power Plant-1 (RAPS-1)

Commissioned in December 1973 in Kota, Rajasthan, RAPS-1 is India’s first Pressurised Heavy Water Reactor (PHWR) with a capacity of 100 MWe. A landmark achievement in nuclear technology, RAPS-1 marked the transition to indigenous PHWR designs, strengthening India's ability to develop and manage nuclear power independently.

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Rajasthan Nuclear Power Plant-2 (RAPS-2)

In April 1981, RAPS-2 began operations in Kota, Rajasthan, with a 200 MWe capacity. Using PHWR technology, it built upon the success of RAPS-1, contributing significantly to Rajasthan’s electricity needs. The plant exemplifies India’s growing expertise in deploying heavy water reactors for sustainable energy production.

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Madras Nuclear Power Plant-1 (MAPS-1)

Operational from January 1984 in Kalpakkam, Tamil Nadu, MAPS-1 is a PHWR with a 220 MWe capacity. Designed to harness indigenous thorium resources, the plant supports Tamil Nadu’s energy infrastructure while contributing to advancements in nuclear fuel utilisation and heavy water reactor technology.

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Madras Nuclear Power Plant-2 (MAPS-2)

Located in Kalpakkam, Tamil Nadu, MAPS-2 started generating power in March 1986. This 220 MWe PHWR complements MAPS-1, reinforcing Tamil Nadu's power grid. The plant highlights India's self-reliance in designing and operating nuclear reactors and its dedication to harnessing nuclear energy for sustainable growth.

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Narora Nuclear Power Plant-1 (NAPS-1)

In January 1991, NAPS-1 commenced operations in Narora, Uttar Pradesh. This 220 MWe PHWR ensures reliable power for the region. It emphasises India's progress in managing nuclear safety, as it was built with modern safety systems to minimise risks, paving the way for advanced nuclear projects.

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Narora Nuclear Power Plant-2 (NAPS-2)

Commissioned in July 1992, NAPS-2 is a PHWR with 220 MWe capacity, located in Narora, Uttar Pradesh. It supports the state’s growing energy demands while showcasing India’s ability to replicate and expand its nuclear infrastructure. Its modern systems ensure consistent and safe power generation.

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Kakrapar Nuclear Power Plant-1 (KAPS-1)

Situated in Tapi, Gujarat, KAPS-1 became operational in May 1993. This 220 MWe PHWR was one of the first reactors to feature indigenous design improvements. KAPS-1 contributes significantly to Gujarat's industrial and residential energy needs while setting standards for performance and efficiency.

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Kakrapar Nuclear Power Plant-2 (KAPS-2)

Operational since September 1995, KAPS-2 is a PHWR with 220 MWe capacity located in Tapi, Gujarat. It complements KAPS-1, strengthening the region's power infrastructure. This plant reflects India’s commitment to energy security through sustainable and indigenous nuclear power solutions.

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Kaiga Generating Station-1 (KGS-1)

KGS-1 began operations in November 2000 in Kaiga, Karnataka. This 220 MWe PHWR supports Karnataka’s energy requirements. Located in an ecologically sensitive region, the plant incorporates strict environmental safeguards, ensuring sustainable operations while balancing development with nature conservation.

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Kaiga Generating Station-2 (KGS-2)

Commissioned in March 2000, KGS-2 is a 220 MWe PHWR in Kaiga, Karnataka. Alongside KGS-1, it ensures a stable power supply for the state. The plant is an example of India’s capability to expand its nuclear infrastructure responsibly while addressing regional energy demands.

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Rajasthan Nuclear Power Plant-3 (RAPS-3)

RAPS-3 became operational in June 2000 in Kota, Rajasthan. This 220 MWe PHWR builds on the success of earlier units at the site. It underscores India’s confidence in scaling up nuclear energy projects to meet the increasing power needs of the state and nation.

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Rajasthan Nuclear Power Plant-4 (RAPS-4)

Located in Kota, Rajasthan, RAPS-4 started operations in December 2000. With a 220 MWe capacity, this PHWR further strengthens Rajasthan’s power supply. Its design incorporates modern safety and efficiency features, demonstrating India’s commitment to enhancing nuclear energy capabilities.

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Kaiga Generating Station-3 (KGS-3)

Operational from May 2007 in Kaiga, Karnataka, KGS-3 is a 220 MWe PHWR. It highlights India’s ongoing nuclear expansion, meeting Karnataka's electricity demands while maintaining high safety standards. The plant represents a successful blend of innovation and reliability in nuclear power technology.

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Kaiga Generating Station-4 (KGS-4)

Commissioned in January 2011, KGS-4 is a 220 MWe PHWR in Kaiga, Karnataka. It complements the earlier units at the site, providing reliable electricity to the region. Its efficient design and operational performance reflect India’s growing expertise in the nuclear energy sector.

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Tarapur Nuclear Power Plant-3 (TAPS-3)

TAPS-3 began operations in August 2006 in Boisar, Maharashtra. A PHWR with 540 MWe capacity, it represents a significant upgrade from the earlier units at Tarapur. The plant supports Maharashtra’s energy demands and signifies India’s ability to scale up reactor capacities effectively.

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Tarapur Nuclear Power Plant-4 (TAPS-4)

Commissioned in September 2005, TAPS-4 is a 540 MWe PHWR in Boisar, Maharashtra. It reinforces Tarapur’s status as a major nuclear power hub. With enhanced safety and efficiency, TAPS-4 contributes substantially to India’s nuclear power output and regional energy security.

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Rajasthan Nuclear  Power Plant-5 (RAPS-5)

RAPS-5 became operational in February 2010 in Kota, Rajasthan. With a 220 MWe capacity, this PHWR strengthens the state’s power grid. It showcases India’s ability to replicate advanced nuclear reactor designs while meeting growing energy needs sustainably.

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Rajasthan Nuclear Power Plant-6 (RAPS-6)

In March 2010, RAPS-6 commenced operations in Kota, Rajasthan. This 220 MWe PHWR complements earlier units, ensuring reliable power generation for the region. Its success highlights India’s expertise in deploying indigenous nuclear technology to support the nation’s energy goals.

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Kudankulam Nuclear Power Station-1 (KKNPS-1)

KKNPS-1, located in Kudankulam, Tamil Nadu, started operations in December 2014. A Pressurised Water Reactor (PWR) with 1000 MWe capacity, it represents India’s collaboration with Russia. The plant is a major contributor to Tamil Nadu’s energy grid, incorporating advanced safety systems.

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Kudankulam Nuclear Power Station-2 (KKNPS-2)

KKNPS-2, situated in Kudankulam, Tamil Nadu, is a PWR designed for high efficiency and safety. With a capacity of 1000 MWe, it complements KKNPS-1, strengthening India’s nuclear power output and contributing to the state’s sustainable energy development.