Independent energy/ CALCULATOR
Battery autonomy
Convert a daily load into nominal battery capacity with stated losses.
Energy to be delivered to loads.
Selected scenario, not guaranteed duration.
Use manufacturer limits and your planned reserve.
Assumed discharge delivery efficiency.
Nominal battery capacity
16.67 kWh
Required delivered energy
12.00 kWh
Energy only. Check inverter continuous and surge power, battery discharge limits, ageing, temperature and recharge time separately. No credit for solar during the autonomy period.
Continue your calculation
Independent energy
Daily electricity budget
Add three appliance groups using power and actual daily running time.
Independent energy
Solar array energy balance
Estimate DC array size from daily energy and a monthly solar assumption.
Independent energy
Battery autonomy after load shedding
Compare battery runtime before and after reducing the daily critical-load budget.