The document describes PlugnChill's thermal energy storage technology using phase change materials. It can provide temperature control for over 20 hours on a single charge and maintains temperatures even during power outages. The system charges in 5-6 hours and has faster temperature recovery than conventional units. It provides 66% lower total cost of ownership compared to diesel-powered refrigeration units due to much lower operating costs. PlugnChill has deployed over 100 units across various cold chain applications in India.