Generac SG275 vs PSI 17L
The Generac SG275 and PSI 17L are both natural gas generator engines in a similar power class. Both are rated at roughly 344 kVA. Displacement is 14.2 L versus 16.7 L. The table below compares their full specifications side by side.
| Specification | Generac SG275 | PSI 17L |
|---|---|---|
| Headline rating | 344 kVA | 344 kVA |
| Standby (50 Hz) | — | 275 kWe |
| Prime (50 Hz) | — | 275 kWe |
| Standby (60 Hz) | 275 kWe | 400 kWe |
| Prime (60 Hz) | 248 kWe | 350 kWe |
| Displacement | 14.2 L | 16.7 L |
| Configuration | L6 | V8 |
| Cylinders | 6 | 8 |
| Rated speed | 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | U.S. EPA Stationary |
| Dry weight | — | — |
| Origin | United States | United States |
Choosing between Generac SG275 and PSI 17L
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing.