Mobile refrigeration for outdoor events succeeds or fails on power, ambient temperature, and mobility. After more than 26 years specifying commercial refrigeration for global kitchens, I treat the electrical supply as the first design input, not the cabinet capacity. A unit that holds 0.5°C to 5°C in a brick kitchen can struggle in a sunlit tent if the generator sags or the condenser cannot reject heat. For caterers, festival operators, and food truck teams, the practical path starts with load planning, voltage stability, cabinet selection, and post-event maintenance. Why Do Outdoor Events Demand a Different Refrigeration Setup? Outdoor service does not change food safety rules, but it changes the heat load around the cabinet. Commercial