8 250–255 kw natural gas generator models side by side — power, phase, sound level, weight and fuel tank capacity, compiled from manufacturer specification sheets.
| Model | Standby | Phase | Sound | Weight | Fuel tank |
|---|---|---|---|---|---|
| Cummins/Onan C250 | 250.0 kW | — | — | — | — |
| Cummins/Onan GFBC | 250.0 kW | 3 | — | 2995.0 kg | — |
| Kohler 250RZD | 250.0 kW | 3 | — | 2901.0 kg | — |
| Generac MG250 | 250.0 kW | Three-Phase | — | 2668.0 kg | — |
| Generac SG250 | 250.0 kW | Three-Phase | 85.6 dBA | 2887.0 kg | — |
| Generac G250LG4 | 250.0 kW | Three-Phase | 85.6 dBA | 2887.0 kg | — |
| MTU 6R500 GS | 250.0 kW | — | — | — | — |
| Horus-Energia HE-MG252-GZ | 252.0 kW | — | — | — | — |
Among 250–255 kW Natural Gas generators in this comparison, the Generac SG250 is quietest at 85.6 dBA.
Among 250–255 kW Natural Gas generators in this comparison, the Generac MG250 is lightest at 2668.0 kg dry weight.
Not every model reports every spec — blanks mean the source document didn't state that figure, not that the value is zero.