Overview#
The Blue Star NG1050-01P is the prime-rated variant of the NG1050-01, delivering 900 kWe continuously on natural gas (575 kWe on LP). It uses the identical PSI 53L V16 platform and physical enclosure as the standby NG1050-01. Three-phase 480V, 600V, and 4160V only — no 208V or 240V. The NG1050-01P carries a 1-year / 1,500-hour prime warranty. UL 2200 listing applies through 600VAC; 4160V is not UL-listed.
Standby vs. prime on the NG1050 platform#
| NG1050-01 (Standby) | NG1050-01P (Prime) | |
|---|---|---|
| Output NG | 1,050 kWe | 900 kWe |
| Output LP | 700 kWe | 575 kWe |
| Warranty | 2 yr / 2,000 hr | 1 yr / 1,500 hr |
| NG fuel @ 100% | 12,531 ft³/hr | 10,930 ft³/hr |
| Deration base | 77°F / 1,200 ft | 77°F / 1,200 ft |
| Temp rise | 125°C standby | 105°C prime |
Both share the same OPU footprint (252×106×117 in, 25,860 lbs), DSE DCP7310 controller, and 30 in. WC fuel pressure requirement. Note that the deration thresholds are identical for standby and prime — the 53L V16 does not gain the extended prime deration seen on smaller models.
Voltage configurations#
| Voltage | Phase | Alternator | Connection |
|---|---|---|---|
| 277/480V | 3 | Stamford S6L1D-F | 4-lead WYE |
| 347/600V | 3 | Stamford S6L1D-F | 4-lead WYE |
| 4160V | 3 | Stamford MVWI734F | 6-lead WYE |
All carry 105°C prime temperature rise and ±0.5% voltage regulation.
When to spec the NG1050-01P#
- 750–900 kW continuous or prime duty on natural gas or LP (three-phase 480V, 600V, or 4160V)
- Large commercial, data center, or hospital facilities with confirmed prime-duty load profiles at megawatt class
- Sites requiring prime-rated certification on gaseous fuel at this output level
Our service experience#
Service procedures are identical to the NG1050-01 standby. Prime-duty use on a 16-cylinder engine means substantially higher hour accumulation — budget for an aggressive spark plug and ignition coil schedule per PSI's prime-duty maintenance specification.
