Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
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.
Solar Energy
Solar Battery Size Calculator
Calculate required battery capacity (kWh) to back up a home for a chosen number of days at a given daily energy usage and battery depth-of-discharge limit. Use it when sizing storage for solar self-consumption, grid-outage backup, or off-grid systems.
Fill in the required fields to see your result.
Key differences
| Solar Battery Storage Calculator | Solar Battery Size Calculator | |
|---|---|---|
| Category | Solar Energy | Solar Energy |
| Inputs required | 4 | 3 |
| Result | Required Battery Capacity (Ah) | Required Battery Capacity (kWh) |
| What it does | 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. | Calculate required battery capacity (kWh) to back up a home for a chosen number of days at a given daily energy usage and battery depth-of-discharge limit. Use it when sizing storage for solar self-consumption, grid-outage backup, or off-grid systems. |