3 500–505 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 |
|---|---|---|---|---|---|
| Kohler 500REZK | 500.0 kW | 3 | — | — | — |
| Cummins/Onan GTA38E | 500.0 kW | A (U), B (V), C (W) | — | — | — |
| MTU 12V1600 GS500 | 500.0 kW | 3,3,3,3,3 | 90.9 dBA | — | — |
Not every model reports every spec — blanks mean the source document didn't state that figure, not that the value is zero.