Focused, field-tested sizing tools for mobile and standalone electrical systems. Choose a dedicated calculation below or launch the unified system architect.
Itemize all AC and DC off-grid appliances, calculate daily watt-hours, account for inverter standby and conversion losses, and compute nominal amp-hour draw.
Launch Audit Daily Energy Load
Determine required battery bank capacity accounting for autonomy days without sun and chemistry-specific depth-of-discharge (80% for LiFePO4 vs 50% for Lead-Acid).
Launch Size Battery Bank
Replenish daily energy consumption based on local peak sun hours, realistic 20% system wiring/temperature loss, and NEC continuous controller sizing.
Launch Plan Solar Array
Architect a coordinated off-grid power setup: determine battery bank Ah, solar wattage, charge controller rating, continuous inverter wattage, and main DC fuse size.
Launch Size Complete System