Verify the inputs
Measure or document each input. If a value is only an estimate, record its source and test a conservative alternative.
Independent energy/ CALCULATOR
Battery autonomy after load shedding
Compare battery runtime before and after reducing the daily critical-load budget.
FROM ESTIMATE TO ACTION
Use the result, not just the number.
Keep the calculation traceable
Save the input link or copied result together with the date, units and assumptions. A number without its inputs cannot be checked later.
Confirm the decision
Compare the estimate with the related guide, current product data and requirements that apply at your location before buying or building.
Inputs to verify
- Nominal battery capacity (kWh)
- Use the rated energy capacity of the battery bank.
- Permitted usable fraction (%)
- Respect manufacturer limits and the reserve in your operating plan.
- Battery-to-load efficiency (%)
- Combined discharge, wiring and inverter efficiency for this estimate.
- Current critical-load energy (kWh/day)
- Use a measured daily total where possible.
- Reduced critical-load energy (kWh/day)
- Enter the load budget after switching off or rescheduling nonessential uses.