Solar Battery Bank Calculator
Calculate how much battery storage you need for your solar system with our comprehensive calculator. Determine battery capacity, costs, and energy requirements based on your specific needs.
Step 1: Energy Requirements
Understanding Battery Autonomy
Days of autonomy refers to how many days you want your battery bank to power your home without solar input. Higher autonomy means more batteries and higher cost.
Step 2: Battery Specifications
About Battery Types
Lithium batteries have longer lifespan and higher depth of discharge than lead-acid. LiFePO4 is the most popular for home solar systems due to safety and longevity.
Solar Battery Bank Results
Estimated Total Project Cost
Battery Type Comparison
| Battery Type | Price per kWh | Battery Cost | Total Project Cost |
|---|
Capacity Breakdown
Battery Calculation Formula
Battery Capacity (kWh) = Daily Consumption × Days of Autonomy ÷ Depth of Discharge
To calculate required battery capacity: Multiply daily energy consumption by desired autonomy days, then divide by depth of discharge percentage (as decimal).
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