17 Y/O•Indore, India•Healthcare
Mithran Ladhania
Won The Earth Prize 2025 (Asia region) at age 16–17 for Thermavault, a first-of-its-kind electricity-free, reusable salt-reaction medical cold-chain unit designed to keep supplies at temperature for up to 12 hours — announced by The Earth Prize (Apr 22, 2025).
What they built
Co-invented Thermavault, a portable electricity-free refrigerator that uses endothermic salt dissolution to stay cool for up to 12 hours. Designed to transport vaccines and medical supplies to rural areas in India that lack reliable electricity. The reusable system requires only common salts dissolved in water and has been awarded the 2025 Earth Prize (Asia region), with 200 units planned for deployment across 120 hospitals.
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Verified track record
Updated April 27, 2026