9 300–305 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 |
|---|---|---|---|---|---|
| Kohler 300REZX | 300.0 kW | 3 | 70.0 dBA | 3200.0 kg | — |
| FG Wilson PG375B3 | 300.0 kW | 3 | — | 2420.0 kg | — |
| Waukesha VGF 18GL | 300.0 kW | 3 | — | — | — |
| Cummins/Onan C300N6 | 300.0 kW | 3 | 73.4 dBA | — | — |
| Caterpillar G300LG6 | 300.0 kW | 3 | 88.0 dBA | 2852.0 kg | — |
| Generac MG300 | 300.0 kW | Three-Phase | 90.0 dBA | 2998.0 kg | — |
| Simson-Maxwell SGWW300 T6 | 300.0 kW | 1, 3 | — | 10400.0 kg | — |
| Generac G300LG4 | 300.0 kW | Three-Phase | 90.0 dBA | 2998.0 kg | — |
| Generac SG300 | 300.0 kW | Three-Phase | 90.0 dBA | 2998.0 kg | — |
Among 300–305 kW Natural Gas generators in this comparison, the Kohler 300REZX is quietest at 70.0 dBA.
Among 300–305 kW Natural Gas generators in this comparison, the FG Wilson PG375B3 is lightest at 2420.0 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.