Buy New & Used industrial backup Generators 50 kW GENERATORS FOR SALE

What Can A 50 kW Generator Power?

A 50 kW generator handles serious equipment without needing to step up to a larger industrial class. It comfortably runs large pumps, air compressors, and welding machines — the kind of loads that show up on active construction sites where several trades are drawing power at once. At the upper end of its range, a 50 kW unit can also supply enough capacity to keep essential services running for a small facility or remote operation entirely off-grid.

A Common Standby Size for Small Facilities and Remote Sites

Not every backup power need is tied to a jobsite. Rural facilities, remote outposts, and small standalone buildings without reliable grid access often land on 50 kW because it’s the smallest size with enough headroom to run an entire small operation — lighting, HVAC, water systems, and basic equipment — off a single unit instead of piecing together several smaller generators. It’s a size that shows up as often in “always-on” remote power as it does in temporary jobsite use.

Sizing a 50 kW Industrial Generator

Accurate sizing starts with identifying every electrical load that could run at the same time, not just the average draw. Starting wattage matters as much as running wattage — motor-driven equipment like welders and compressors pull a sharp surge the moment they kick on, and that surge is often what actually determines whether a generator can handle the job. From there, factor in duty cycle, expected runtime, and site conditions like altitude and ambient temperature, all of which affect real-world output.

What to Total Before You Buy

• Running wattage for every piece of equipment operating simultaneously
• Startup surge wattage for motor-driven loads (welders, compressors, pumps)
• Expected duty cycle — continuous operation vs. intermittent backup
• Environmental factors affecting output, like altitude and temperature

Run the numbers through our power calculator, or contact our team directly if your load list is more complex than a straightforward total.

Where 50 kW Fits in Our Lineup

50 kW sits comfortably between light commercial use and heavier industrial demand. If your equipment list is lighter — a single major tool or minimal backup coverage — our 45 kW generator may be the more cost-effective choice. For larger sites running multiple crews or heavier simultaneous equipment, our 65 kW generator adds meaningful headroom, and operations scaling toward continuous, high-capacity use should look at our 500 kW generators.

Why Buy A 50 kW Generator From Turnkey Industries?

Turnkey Industries has spent the last decade building a reputation on inspected, dependable industrial generators. Every unit — new or used — passes a thorough 22-point inspection before it ships and is backed by our 30-day IronClad warranty. Once it’s on-site, our service and maintenance team is available for preventative care or repairs. Browse our full inventory or contact us to talk through your specific site requirements.