Niigata 18V28AGS vs Wärtsilä 12V34SG
The Niigata 18V28AGS and Wärtsilä 12V34SG are both natural gas generator engines in a similar power class. Both are rated at roughly 7,400 kVA. Displacement is 432 L versus 435.9 L. The table below compares their full specifications side by side.
| Specification | Niigata 18V28AGS | Wärtsilä 12V34SG |
|---|---|---|
| Headline rating | 7,500 kVA | 7,300 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 6,000 kWe | 5,840 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | 5,580 kWe |
| Displacement | 432 L | 435.9 L |
| Configuration | V18 | V12 |
| Cylinders | 18 | 12 |
| Rated speed | 750 RPM | 750 / 900 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | Japan | Finland |