An instrument used to estimate the total electrical energy demand of a recreational vehicle. It is a tool that aggregates the power requirements of individual appliances and devices within the RV, providing a comprehensive assessment of overall energy usage. For instance, a user would input the wattage and runtime of items like the refrigerator, air conditioner, lights, and entertainment systems into the tool, resulting in a calculated total energy consumption, typically expressed in amp-hours or watt-hours.
Accurate prediction of power needs is critical for successful operation of an RV, especially when relying on battery power, generators, or solar panels. Understanding energy consumption enables informed decisions regarding battery bank size, generator selection, and solar panel array capacity. Historically, this assessment was performed manually, involving individual calculations for each device. The advent of computerized and online tools simplifies and improves the accuracy of this process, enabling a more efficient and reliable approach to power management.