Restroom trailer for a fall 2026 festival: generator size needed?

A 4-stall restroom trailer with flushing toilets, sinks, interior lights, and a heating system typically requires a generator with a continuous output of at least 5000 to 7000 watts. The rental company that supplies the trailer should provide the exact wattage requirement for their specific model, which is the most reliable source. Confirm the generator's rated continuous wattage, not just its peak or surge wattage, because the heating system and lights will run for the entire weekend.

Cold weather in October increases the power needs because the heating system must work harder to maintain a comfortable interior temperature, especially overnight when outside temperatures drop. A generator on the higher end of the wattage range provides a buffer for this increased load and prevents overloading. The trailer's placement on level grass is correct, and the 30-foot distance from the service truck is manageable for pumping. Remember to place the generator downwind and at a safe distance from the trailer to minimize noise and exhaust fumes for your guests. Secure a fuel supply for the entire event duration, as the generator will run continuously from Friday evening through Sunday night.