Blue Star Power Systems · Gaseous Product Line (PSI 53L)

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Blue Star NG1050-01P

1050 kW standby / 900 kW prime · Natural Gas / LPG · Liquid-cooled

900 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 53L V16 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 480-4160V.

Standby power
1050 kW / 900 kW prime
Voltage options
277/480V, 347/600V, 4160V
Frequency / Phase
60 Hz · 3-phase
Engine
PSI 53L · 52.3L
EPA / Emissions
EPA Stationary Spark Ignition
Alternator
Stamford S6L1D-F
large-commercialdata-centerhospital-non-criticalschool-campusmulti-family-largelight-industrial

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 NG1,050 kWe900 kWe
Output LP700 kWe575 kWe
Warranty2 yr / 2,000 hr1 yr / 1,500 hr
NG fuel @ 100%12,531 ft³/hr10,930 ft³/hr
Deration base77°F / 1,200 ft77°F / 1,200 ft
Temp rise125°C standby105°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#

VoltagePhaseAlternatorConnection
277/480V3Stamford S6L1D-F4-lead WYE
347/600V3Stamford S6L1D-F4-lead WYE
4160V3Stamford MVWI734F6-lead WYE

All carry 105°C prime temperature rise and ±0.5% voltage regulation.

When to spec the NG1050-01P#

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.

Engineering specifications

Physical

Length
252 in
Width
106 in
Height
117 in
Dry weight
25,860 lb

Acoustic

Sound @ 7m, full load
92 dBA
Enclosure
Open

Fuel system & runtime

NG required pressure
30 in WC

Thermal & ventilation

Heat to coolant
2,888,880 BTU/hr
Heat radiated
1,106,220 BTU/hr
Exhaust flow
6,178 CFM
Exhaust temp
1200 °F
Combustion air
1,999 CFM
Ventilation air
67,300 CFM

Documents & downloads

Spec sheets & manuals

Request a quote

Get pricing & lead time on the Blue Star NG1050-01P

Tell us about the application — kW, voltage, application, install timeline — and we'll respond within one business day with budgetary pricing, lead time, and any sizing notes.

Estimate runtime for the Blue Star NG1050-01P

Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.

Estimate runtime on this tank

Fuel demand at 75% load

11,025,000 BTU/hr11025.0 cf/min @ 1,000 BTU/cf

On utility natural gas the runtime is generally unlimited provided the supply line and meter can deliver this BTU/hr at the engine's required inlet pressure (typically 5–14" WC residential, up to 5 psi commercial). Confirm against the OEM's published fuel-pressure spec.

Service intervals

Manufacturer-recommended intervals for the Blue Star NG1050-01P under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.

Oil & filter
Every 250 hours or 12 months
Coolant change
Every 4000 hours
Air filter
Every 1000 hours
Spark plugs
Every 1500 hours
Major overhaul
15,000 hours
Load bank test
Every 12 months

Common failure modes

What we've seen fail on this platform. Use as a service-planning reference, not a diagnostic — actual failure modes depend heavily on duty cycle and maintenance history.

ComponentSymptomTypical hoursSeverity
Turbocharger(s)Significant power loss, heavy exhaust smoke12,000+severe
Ignition system (multi-cylinder)Multiple misfires, output derating1,500+moderate
Charge air coolerReduced output, elevated intake temperatures10,000+moderate

Frequently Asked Questions

What is the prime rating of the NG1050-01P?
The Blue Star NG1050-01P is rated 900 kWe prime on natural gas and 575 kWe prime on LP at 60 Hz / 1800 RPM, backed by a 1-year / 1,500-hour prime warranty. The paired standby unit is the NG1050-01 at 1,050 kWe NG / 700 kWe LP standby.
How does fuel consumption compare between NG1050-01 and NG1050-01P?
At 100% load: NG1050-01 standby consumes 12,531 ft³/hr NG (1,050 kW); NG1050-01P prime consumes 10,930 ft³/hr NG (900 kW). LP at 100% prime is 3,208 ft³/hr vs. 3,867 ft³/hr at standby. The 30 in. WC fuel pressure requirement applies to both units.
What are the deration thresholds for the NG1050-01P?
The NG1050-01P prime uses the same deration base as the standby: 0.8% per 5°F above 77°F inlet air and 2.5% per 1,000 ft above 1,200 ft altitude. Unlike some smaller Blue Star prime variants that have improved deration tolerance, the 53L prime and standby share identical thresholds.
Is the 4160V configuration on the NG1050-01P UL-listed?
No. UL 2200, cUL, and CSA certifications apply through 600VAC only for both the NG1050-01 and the NG1050-01P. The 4160V configuration (Stamford MVWI734F) is not UL-listed.

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