India has brought a 500 MW sodium-cooled reactor online at Kalpakkam, a move that underscores its strategy to harness abundant domestic thorium for long-term energy security and sustainability. The new unit is part of a state-led nuclear program that aims to build a large fleet of reactors and maintain full control over the entire nuclear value chain, contrasting with the more fragmented, market-driven approach seen in the United States. In April 2026 the 500 MW reactor achieved criticality, the first step in a new generation of thorium-based plants. Construction began in 2004 with a 2010 expected completion date, and the government has announced plans for 18 standard design reactors, in addition to 8 currently under construction, a capital commitment that could reach hundreds of billions of dollars. The reactor's sodium-cooling technology is a mature design, with at least twelve countries having built variants, and it is intended to use a thorium-plutonium fuel cycle that blends high-assay, low-enriched uranium with thorium. "The haters and skeptics will point out that this unit began construction in 2004 with a 2010 expected completion date," the article notes, while the government said as much in the press release discussing the new reactor. Prime Minister Modi stated that this facility "reflects the depth of our scientific capability and the strength of our engineering enterprise." The design is entirely domestic, originating from the Indira Gandhi Center for Atomic Research and funded by the Department of Atomic Energy. Looking ahead, India's long-term plan to deploy a fleet of 18 reactors, supported by a robust domestic supply chain and a comprehensive waste-remediation strategy, positions the country to reduce its reliance on imported fuels and to keep nuclear power's share of the national mix below five percent while maintaining a path toward sustainable, low-carbon energy.