This tool is designed to estimate the runtime an electrical system can operate when powered by a battery connected to an inverter. It facilitates the calculation of essential parameters such as the required battery capacity based on the load’s power consumption, the desired backup time, and the inverter’s efficiency. For example, one can input a load of 100 watts, a desired backup time of 5 hours, and an inverter efficiency of 90% to determine the necessary battery size in amp-hours (Ah).
Accurate sizing of a battery bank and inverter system is crucial for ensuring reliable power during outages or in off-grid applications. Using this method allows for optimized investment in equipment, avoiding both undersized systems that fail to meet needs and oversized systems that waste resources. Historically, these calculations were performed manually, requiring potentially error-prone formulas. Standardizing the process through dedicated applications improves accuracy and simplifies design work.