Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Solar Energy
Solar Battery Sizing Calculator
Find the minimum battery bank capacity needed to power your home through cloudy days or outages. Use this when designing an off-grid or hybrid solar system and choosing between lithium or lead-acid batteries.
Fill in the required fields to see your result.
Solar Energy
Solar Battery Storage Calculator
Find the battery bank capacity (in amp-hours) needed to power your home for a set number of backup days. Use this when designing an off-grid system or adding storage to a grid-tied solar setup.
Fill in the required fields to see your result.
Key differences
| Solar Battery Sizing Calculator | Solar Battery Storage Calculator | |
|---|---|---|
| Category | Solar Energy | Solar Energy |
| Inputs required | 5 | 4 |
| Result | Required Battery Capacity (Ah) | Required Battery Capacity (Ah) |
| What it does | Find the minimum battery bank capacity needed to power your home through cloudy days or outages. Use this when designing an off-grid or hybrid solar system and choosing between lithium or lead-acid batteries. | Find the battery bank capacity (in amp-hours) needed to power your home for a set number of backup days. Use this when designing an off-grid system or adding storage to a grid-tied solar setup. |