Backup Power

Generator kVA · battery Ah · ATS sizing · UPS runtime

Critical Load (kW)

Power Factor

Largest Motor Starting kVA

Backup Duration (hr)

Battery Voltage (V)

Efficiency

Depth of Discharge

System Voltage (V) — for ATS

Generator Size

— kVA

Battery Bank

— Ah

UPS Load kVA

— kVA

ATS Rating

— A

Runtime

— hr

Sizing Summary

NEMA MG-1 step-load—

Battery energy— kWh

✓ Sized