New Delhi: In what is seen as giving boost to the nation’s maritime strength, the Bhabha Atomic Research Centre (BARC) is set to play a pivotal role in powering India’s future nuclear submarines through the development of a new 190-MW nuclear reactor.
This initiative is part of India’s broader strategy to enhance its naval capabilities, particularly in response to evolving geopolitical dynamics in the Indo-Pacific region.
The new reactor is specifically designed for upcoming classes of submarines, including the P77 nuclear attack submarines (SSNs) and the S-5 ballistic missile submarines (SSBNs).
This marks a significant advancement from the current fleet, which utilises an 83-MW pressurised light-water reactor. The enhanced power output of the new reactor will allow submarines to operate more efficiently and for extended periods without surfacing, thereby improving stealth and operational capabilities.
The new 190-MW nuclear reactor will significantly enhance India’s naval capabilities, particularly for its future nuclear submarines, including the P77 nuclear attack submarines (SSNs) and S-5 ballistic missile submarines (SSBNs).
The 190-MW reactor represents a substantial upgrade from the existing 83-MW reactors used in the Arihant-class submarines. This increased power output will enable submarines to operate more efficiently and for longer periods without surfacing, enhancing their stealth and operational capabilities.
The reactor will be designed in a twin configuration, allowing it to provide sufficient power for larger vessels, such as a potential future nuclear aircraft carrier weighing around 70,000 tons. This approach not only meets the needs of submarines but also lays groundwork for future naval projects.
Tailored for nuclear attack submarines (SSN), this variant can handle dynamic power demands necessary for rapid manoeuvres and operational flexibility.
Designed for endurance missions (SSBN), this variant focuses on maintaining steady power output for long-duration stealth operations.
Building on the technology demonstrated by the Arihant-class reactors, the new design is expected to incorporate advanced safety features, improved fuel efficiency, and reduced maintenance requirements. This ensures that the reactors can withstand harsh underwater environments while remaining safe and sustainable for extended missions.
The development of this reactor marks a significant step towards self-reliance in India’s defence technology. By creating an indigenous nuclear reactor, India aims to reduce dependence on foreign technology and enhance its strategic capabilities amid rising regional tensions.
The reactor’s design allows for quick adjustments in power output, which is crucial for SSNs that require rapid changes in speed and depth during operations. This operational flexibility is essential for effective naval warfare.
The development of this reactor is of strategic importance and crucial for several reasons. The initiative reflects India’s commitment to self-sufficiency in defence technology, reducing reliance on foreign technology and expertise. BARC has been instrumental in developing indigenous nuclear capabilities since its inception in 1954.
By equipping submarines with more powerful reactors, India aims to bolster its second-strike capability. This capability is essential for maintaining and enhancing a credible deterrent posture, particularly given India’s no-first-use nuclear policy. The ability to launch retaliatory strikes from submerged platforms significantly enhances national security.
The urgency for advanced nuclear submarines has intensified due to strategic shifts in the Indo-Pacific region and challenges posed by neighbouring adversary countries. The new reactor will support the construction of advanced submarines that can carry more sophisticated missile systems, such as the K-4 ballistic missile with a range of up to 3,500 km.
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