Engineers at Bhabha Atomic Research Centre (BARC) have developed small nuclear reactor concepts using thorium fuel, capable—on paper—of supplying electricity to an entire district for years using just a few hundred grams of thorium. Thorium is abundant in India and produces less long-lived nuclear waste than conventional uranium fuel. Important Details: • Developed by India’s BARC engineers • Uses thorium instead of uranium • Extremely high energy density • Minimal fuel quantity required • Lower