Kakrapar Unit-3 (KAPS-3), the first indigenous Pressurised Heavy Water Reactor (PHWR), was successfully commissioned in June 2023. This marks a milestone in India's pursuit of clean energy, aiming for Net Zero by 2070. The goal is to scale up renewables and storage without tradeoffs by installing nuclear power. KAPS-3 is a 700 MW PHWR with advanced safety features, designed by NPCIL, with Indian-supplied components and execution. It will be a mainstay of India's nuclear power program, contributing to Atma Nirbhar Bharat. The Core Damage Frequency & Seismic Margin of KAPS-3 are 6.34 x 10-08/Reactor/Year and 33%, respectively. The information was released on 04 DEC 2025 at 6:21 PM by PIB Delhi.
Key Entities Referenced
Kakrapar Unit-3 (KAPS-3): First indigenous Pressurised Heavy Water Reactor (PHWR) and a significant milestone in India's quest to add clean base load capacity towards Net Zero by 2070.
Net Zero: Target for clean base load capacity by 2070 through renewable and nuclear power plants.
Atma Nirbhar Bharat: Goal to which the fully indigenous 700 MW PHWR programme contributes.
NPCIL: Designed KAPS-3
Department of Atomic Energy
PARLIAMENT QUESTION: STATUS OF
KAKRAPAR UNIT-3
प्रव तथ: 04 DEC 2025 6:21PM by PIB Delhi
The successful commissioning of Kakrapar Unit-3 (KAPS-3) in June 2023, the first of a kind indigenous
Pressurised Heavy Water Reactor (PHWR) was a significant milestone in India’s quest to add clean base
load capacity towards Net Zero by 2070. No tradeoffs are being made against scale up of renewable plus
storage by installing nuclear power capacity, as considering the large clean energy capacity required for
achievement of Net Zero, both renewables with storage and nuclear power plants have to be deployed in
large numbers.
KAPS-3, the first of a kind indigenous 700 MW PHWR with advanced safety features was designed by
NPCIL. Its components / equipment were supplied by Indian industries and works executed by Indian
contractors. The fully indigenous 700 MW PHWR would be the mainstay of the Indian nuclear power
programme in future contributing to the goal of Atma Nirbhar Bharat.
The Core Damage Frequency & Seismic Margin beyond design basis earthquake of KAPS-3 are 6.34 x
10-08/Reactor/Year and 33% respectively.
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