Solar Battery Backup Calculator vs Solar Battery Sizing Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Solar Battery Backup Calculator
Determines how many kilowatt-hours of battery capacity you need to keep essential appliances running during a grid outage. Use it when sizing a home battery bank paired with a solar array.
- Answers
- Required Battery Capacity (kWh)
- Inputs
- Essential Load Power, Desired Backup Duration, Battery System Efficiency, Depth of Discharge
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.
- Answers
- Required Battery Capacity (Ah)
- Inputs
- Daily Energy Usage, Backup Days Needed, Battery Type, System Voltage, System Efficiency
At a glance
| Solar Battery Backup Calculator | Solar Battery Sizing Calculator | |
|---|---|---|
| Category | Solar Energy | Solar Energy |
| Answers | Required Battery Capacity | Required Battery Capacity |
| Inputs | 4 | 5 |
| Result unit | kWh | Ah |
When to use each
Determines how many kilowatt-hours of battery capacity you need to keep essential appliances running during a grid outage. Use it when sizing a home battery bank paired with a solar array.
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.