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Science & TechnologySource: Economic Times

India's Kudankulam Nuclear Power Plant Achieves Milestone with Reactor Pressure Vessel Installation

Friday, 19 June 2026
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Key Points

The installation of the Reactor Pressure Vessel at Kudankulam Nuclear Power Plant marks a pivotal moment in India's clean energy journey, showcasing Indo-Russian collaboration in nuclear technology. This is crucial for UPSC aspirants, especially for GS Paper 3, focusing on energy security and technology. Last Updated: 19-06-2026

Key Facts About Kudankulam Nuclear Power Plant

  • The Reactor Pressure Vessel (RPV) is a massive steel component weighing approximately 320 tonnes.
  • The RPV installation was executed with technical support from Rosatom and Atomstroyexport (ASE), under an Intergovernmental Agreement signed in 1988.
  • The RPV houses the reactor core where nuclear fission occurs, generating energy.
  • The installation used the "open-top" method, involving a high-capacity crane.
  • KKNPP uses Russian-designed VVER-1000 technology, a type of Pressurized Water Reactor (PWR).
  • Units 1 and 2 have generated over 127 billion kWh of electricity, reducing over 112 million tonnes of CO2 emissions.
  • Once fully operational, KKNPP will have a total capacity of 6,000 MWe, contributing to India's target of 100 GW nuclear capacity by 2047.

India's Clean Energy Expansion

The Kudankulam Nuclear Power Plant plays a significant role in India's strategic goal of expanding its clean energy capacity. This aligns with India's commitment to sustainable development and reducing carbon emissions. The plant's development is a testament to the country's efforts to achieve energy security and reduce reliance on fossil fuels, contributing to global climate goals.

UPSC Relevance

  • GS Paper 3: Energy security, technology, and international relations.
  • Prelims: Questions could focus on the technical aspects of the RPV, the VVER-1000 technology, and Indo-Russian collaborations.
  • Mains: Essays could explore the impact of nuclear energy on sustainable development and energy security.
  • Essay Paper: Topics on international collaboration in energy technology.

FAQ Section

  • What is the Reactor Pressure Vessel?
    The Reactor Pressure Vessel is a critical component of a nuclear power plant, housing the reactor core where nuclear fission occurs to generate energy.
  • Why is the Kudankulam Nuclear Power Plant important?
    The Kudankulam Nuclear Power Plant is crucial for India's clean energy expansion, reducing carbon emissions and supporting energy security goals.
  • What are the key features of the VVER-1000 technology?
    The VVER-1000 is a type of Pressurized Water Reactor (PWR) that uses light water as both a coolant and a neutron moderator, known for its safety and efficiency.

Detailed Coverage

  • Kudankulam Nuclear Power Plant (KKNPP) in Tamil Nadu has installed the Reactor Pressure Vessel (RPV).
  • The installation marks a milestone in India's clean energy expansion.
  • Executed with support from Rosatom, Russia's state nuclear energy corporation.
  • Partnership is based on an Intergovernmental Agreement signed in 1988.
  • The RPV weighs approximately 320 tonnes and is crucial for nuclear fission.
  • Installed using the precise open-top method with a high-capacity crane.
  • KKNPP utilizes VVER-1000 technology, a type of Pressurized Water Reactor.
  • Current operational units have generated over 127 billion kWh of electricity.
  • This has reduced carbon emissions by avoiding over 112 million tonnes of CO2.
  • KKNPP aims to minimize coal dependence and support sustainable development.
  • When fully operational, KKNPP will have a capacity of 6,000 MWe.
  • The project supports India's goal of achieving 100 GW of nuclear capacity by 2047.
  • The installation is significant for India's energy security.
  • Reflects ongoing Indo-Russian collaboration in nuclear technology.
  • Highlights India's commitment to clean energy initiatives.
  • Marks a critical milestone in India's clean energy journey.
Science & Technology

Practice Questions

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The successful installation of the Reactor Pressure Vessel at the Kudankulam Nuclear Power Plant is a result of a long-standing collaboration between India and Russia, formalized through an Intergovernmental Agreement. In which year was this pivotal agreement originally signed?