How do I use the Emergency Diesel Generator kW/kVA Sizing & Fuel Burn Solver?

Enter your specific project or financial parameters into the input fields above. The engine recalculates outputs dynamically in real time and updates visual charts and summary metrics.

Can I export and share these results?

Yes, you can generate shareable state links, export clean CSV spreadsheets, or print high-resolution executive reports with a single click.

Is this calculator free to use?

Yes, all calculation engines on ToolsVault are 100% free with no account registration or paywall required.

⚡ Electrical Power Systems & Thermodynamic Fuel Burn

Generator Electrical Sizing, Amps & Fuel Burn Solver

Size prime and emergency standby generators (kW/kVA), 480V 3-phase full load amperage (FLA), motor starting skVA inrush transients (ISO 8528 G3), hourly diesel consumption (GPH), and continuous fuel tank autonomy hours.

⚙️ Facility Electrical Load Profile

Connected Peak Load (Facility Demand kW)

Power Factor (Inductive Cos Φ)

Duty Rating Class (Standby vs Prime)

Largest Motor Inrush (Chiller / Fire Pump HP)

Sub-Base Fuel Tank (Diesel Capacity Gallons)

gal

📊 Generator Sizing & Fuel Pro-Forma

Recommended Genset Capacity

1,000 kW (1,250 kVA)

Full-Load Amperage (FLA)

1,203 Amps (480V 3-Phase)

Hourly Diesel Fuel Burn Rate

58.0 Gal / Hour @ 800 kW Load

Continuous Fuel Run-Time

20.7 Hours Continuous Run-Time

Motor Starting Transient

775 skVA (Starting Inrush Peak)

Automatic Transfer Switch (ATS)	NEMA 3R 1,600A 480V 4-Pole Dual Utility Bypass-Isolation Switch
Emissions Certification	EPA Tier 4 Final Selective Catalytic Reduction (SCR) with DEF
Sound Attenuation Enclosure	68 dBA @ 23 feet (Super-Quiet Hospital / Data Center Grade)