Generac SG275 vs PSI 13L HO
The Generac SG275 and PSI 13L HO are both natural gas generator engines in a similar power class. Both are rated at roughly 340 kVA. Displacement is 14.2 L versus 12.54 L. The table below compares their full specifications side by side.
| Specification | Generac SG275 | PSI 13L HO |
|---|---|---|
| Headline rating | 344 kVA | 336 kVA |
| Standby (50 Hz) | — | 269 kWe |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 275 kWe | 311 kWe |
| Prime (60 Hz) | 248 kWe | — |
| Displacement | 14.2 L | 12.54 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| 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 | — | 1050 kg |
| Origin | United States | United States |
Choosing between Generac SG275 and PSI 13L HO
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. The Generac SG275 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.