Solar Battery Size Calculator vs Solar Panel Output 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 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.
- Answers
- Required Battery Capacity (kWh)
- Inputs
- Daily Energy Usage, Backup Days Needed, Depth of Discharge
Solar Panel Output Calculator
Calculate the daily energy output (kWh) of a solar panel from its rated wattage, daily peak-sun hours, and efficiency. Use it during system sizing or to estimate production from a specific panel under your local sunlight conditions.
- Answers
- Daily Energy Output (kWh)
- Inputs
- Panel Wattage, Peak Sun Hours, System Efficiency
At a glance
| Solar Battery Size Calculator | Solar Panel Output Calculator | |
|---|---|---|
| Category | Solar Energy | Solar Energy |
| Answers | Required Battery Capacity | Daily Energy Output |
| Inputs | 3 | 3 |
| Result unit | kWh | kWh |
When to use each
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.
Calculate the daily energy output (kWh) of a solar panel from its rated wattage, daily peak-sun hours, and efficiency. Use it during system sizing or to estimate production from a specific panel under your local sunlight conditions.