Blue Star Power Systems · Gaseous Product Line (PSI 11.1L)
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Blue Star NG200-01P
200 kW standby / 175 kW prime · Natural Gas / LPG · Liquid-cooled
175 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 11.1L inline-six, DSE DCP7310 controller, 208-600V, continuous prime duty.
The Blue Star NG200-01P is the prime-rated variant of the NG200-01, delivering 175 kWe continuously on natural gas (115 kWe on LP). It uses the identical PSI 11.1L inline-six platform and physical enclosure as the standby NG200-01, with the prime rating providing a warranty-backed assurance of continuous duty at reduced electrical output.
Service intervals are identical to the NG200-01. Prime-duty operation means higher annual hour accumulation — budget for more frequent spark plug and ignition coil replacements relative to a standby unit. The 2-inch NPT fuel connection and 11 in. water column pressure requirement are the same as the standby variant.
Get pricing & lead time on the Blue Star NG200-01P
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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
2,100,000 BTU/hr≈ 2100.0 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 NG200-01P 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.
Component
Symptom
Typical hours
Severity
Turbocharger
Loss of power, excessive smoke under load
12,000+
moderate
Spark plugs / ignition
Misfire at load, rough running
1,500+
minor
Charge air cooler
Reduced power output, elevated intake temps
10,000+
moderate
Battery
Failed to start during outage
8,760+
minor
Frequently Asked Questions
What is the prime rating of the NG200-01P?
The Blue Star NG200-01P is rated 175 kWe prime on natural gas (115 kWe on LP) at 60 Hz / 1800 RPM. The unit is backed by a 1-year / 1,500-hour prime warranty. The standby-rated counterpart is the NG200-01 at 200 kWe.
What engine powers the NG200-01P?
The PSI 11.1L inline-six — 11.1 liters (673 cu in), turbocharged-aftercooled, 10.5:1 compression, rated 315 bHp (235 kWm) at 1800 RPM. The same engine platform powers the standby NG200-01; the prime rating reflects a conservative electrical output for continuous-duty reliability.
How does fuel consumption compare to the standby NG200-01?
At 100% prime load (175 kW), the NG200-01P consumes 1,879 ft³/hr of natural gas vs. 2,076 ft³/hr for the standby NG200-01 at 200 kW. Per-kW consumption is comparable — the difference reflects the lower output level of the prime variant.
What alternators does the NG200-01P use?
The NG200-01P uses voltage-dependent alternator selection: Stamford S4L1D-E41 for 240V single-phase; Stamford UCDI274J1 for 208V and 240V three-phase; Stamford UCI274H for 480V and 600V three-phase. All are 105°C prime temperature rise, single-bearing brushless.
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