12 50–55 kw bi-fuel (ng/lp) 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 |
|---|---|---|---|---|---|
| Olympian G50F3 | 50.0 kW | 3 | — | — | — |
| Kohler 50ERES | 50.0 kW | Single | 68.0 dBA | — | — |
| Cummins/Onan C50 N6H | 50.0 kW | 1 or 3 | — | 1251.0 kg | — |
| Cummins/Onan RS50 | 50.0 kW | 1 or 3 | 69.3 dBA | 1090.0 kg | — |
| Cummins/Onan RX 50 | 50.0 kW | 1 | 67.0 dBA | 635.0 kg | — |
| Generac SG050 | 50.0 kW | 3 | — | 714.0 kg | — |
| Cummins/Onan C50 N6 | 50.0 kW | 1-phase,3-phase | 72.0 dBA | 1090.0 kg | — |
| Generac QT050 | 50.0 kW | — | 75.0 dBA | — | — |
| Generac SG050T | 50.0 kW | Three-Phase | 100.0 dBA | 837.0 kg | — |
| SDMO G88 | 51.0 kW | 3 | — | 1134.0 kg | — |
| Kohler KG50 | 53.0 kW | 3 | — | — | — |
| SDMO G60 | 54.0 kW | 3 | — | — | — |
Among 50–55 kW Bi-Fuel (NG/LP) generators in this comparison, the Cummins/Onan RX 50 is quietest at 67.0 dBA.
Among 50–55 kW Bi-Fuel (NG/LP) generators in this comparison, the Cummins/Onan RX 50 is lightest at 635.0 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.