Calculate a home battery utilization factor by comparing annual discharged energy with the maximum theoretical energy from one full usable-capacity discharge every day. This storage-specific definition is not a generator capacity factor; it shows how intensively the battery is cycled over a year.
The main result converts the entered technical or financial assumptions into a planning metric. Review the supporting values to confirm that the inputs describe the same system boundary and time period.
Planning estimate only. Actual energy and economics depend on site conditions, equipment performance, tariffs, controls, maintenance, and applicable rules.
The prefilled values provide a worked example. On page load, the calculator applies the displayed formula and shows the matching result. Change one assumption at a time to see its effect.
Yes. Use conservative site or load estimates, then replace them with measured values when available.
No. The calculator is a first-year or steady-assumption estimate unless degradation is entered indirectly in the inputs.
Weather, load variation, downtime, controls, equipment limits, and measurement boundaries can all change the real outcome.
Yes. Enter the displayed percentage value, such as 8 for 8%, rather than 0.08.
No. Use it for screening and comparison; final design should use site data, equipment specifications, and qualified engineering advice.
| Item | How to use it |
|---|---|
| Capacity or power | Use the rating and boundary stated on the equipment specification. |
| Energy | Use kWh for a consistent annual, daily, or cycle period. |
| Percent inputs | Enter 8 for 8%, not 0.08. |