Generac SG450 vs Volvo Penta TWG1781GE
The Generac SG450 and Volvo Penta TWG1781GE are both natural gas generator engines in a similar power class. Both are rated at roughly 567 kVA. Displacement is 21.9 L versus 17.26 L. The table below compares their full specifications side by side.
| Specification | Generac SG450 | Volvo Penta TWG1781GE |
|---|---|---|
| Headline rating | 563 kVA | 570 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 450 kWe | 456 kWe |
| Prime (60 Hz) | 409 kWe | 414 kWe |
| Displacement | 21.9 L | 17.26 L |
| Configuration | V12 | L6 |
| Cylinders | 12 | 6 |
| Rated speed | 1,800 RPM | 1,800 RPM |
| Fuel | Natural Gas | Natural Gas / Biomethane |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | U.S. EPA Stationary |
| Dry weight | — | 1900 kg |
| Origin | United States | Sweden |