A preformatted digital document designed to estimate the power requirements for various electrical appliances and devices, facilitating the selection of an appropriately sized portable power source, typically a generator. For instance, a user inputs the wattage of a refrigerator, lighting, and power tools; the spreadsheet calculates the total wattage needed to operate these items simultaneously, factoring in starting surges for inductive loads.
The significance of such a tool lies in its ability to prevent generator overload, which can lead to damage or failure. Correctly sizing a generator ensures efficient fuel consumption and extends its lifespan. Historically, these calculations were performed manually, prone to error and time-consuming. The advent of spreadsheet software allowed for automation and increased accuracy, improving power management practices across diverse fields.