Researchers at MIT World Peace University have developed a solar thermal energy storage system using a phase change material-based thermal battery to provide hot water even after sunset. The system combines a Scheffler solar concentrator with a thermal storage capsule containing paraffin wax, capable of storing and releasing large amounts of heat. This technology aims to reduce dependence on electricity and fossil fuels for water heating applications, reaching Technology Readiness Level 7. Seeking collaborations for pilot deployment and commercialization, the next phase involves field trials, performance optimization, and scale-up for various sectors including residential water heating, industrial process heating, and off-grid rural communities.