Blue Star Power Systems · Gaseous Product Line (PSI 40L)
New
Blue Star NG800-01
800 kW standby / 660 kW prime · Natural Gas / LPG · Liquid-cooled
800 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 40L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-4160V.
The Blue Star NG800-01 is an 800-kilowatt natural gas / LP standby generator built on the PSI 40-liter V12 platform — the largest engine in Blue Star's current gaseous lineup below the PSI 52L-based models. It is rated 800 kWe standby on natural gas and 475 kWe on LP at 60 Hz / 1800 RPM. Three-phase only (208V, 240V, 480V, 600V, and 4160V). UL 2200 listing applies through 600VAC only — the 4160V configuration is not UL-listed.
Important: The NG800-01 requires 30 in. water column inlet fuel pressure — nearly 3× the 11 in. WC required by smaller Blue Star gaseous units. Site gas infrastructure, meter sets, and regulators must be sized to deliver 30 in. WC under sustained full-load conditions. This is a critical specification check before installation.
The NG800-01 is the first model in Blue Star's gaseous lineup to offer 4160V three-phase output:
Voltage
Phase
Alternator
Connection
120/208V
3
Stamford S6L1D-D
12-lead WYE
240V
3
Stamford S6L1D-D
12-lead DELTA
277/480V
3
Stamford S6L1D-C
12-lead WYE
347/600V
3
Stamford S6L1D-C
4-lead WYE
4160V
3
Stamford MVWI734E
6-lead WYE
All configurations carry 125°C standby temperature rise and ±0.5% voltage regulation.
UL listing: UL 2200, cUL, and CSA certifications apply through 600VAC only. The 4160V configuration is not UL-listed. Confirm AHJ requirements before specifying 4160V output.
The NG800-01's LP standby rating of 475 kWe is 59% of the 800 kWe NG rating — lower LP-to-NG parity than smaller PSI 32L-based models. For sites where LP fuel must carry substantial load, verify the 475 kWe LP rating against the load profile.
The PSI 40L V12 is a large and specialized platform. Service intervals on a 12-cylinder engine with 38.6 gal of oil are significant — plan for proportionally larger fluid changes and a full 12-cylinder spark plug and ignition coil schedule. Fuel delivery infrastructure (30 in. WC sustained under load) must be verified before commissioning.
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.
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
8,400,000 BTU/hr≈ 8400.0 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 NG800-01 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(s)
Significant power loss, heavy exhaust smoke
12,000+
severe
Ignition system (multi-cylinder)
Multiple misfires, output derating
1,500+
moderate
Charge air cooler
Reduced output, elevated intake temperatures
10,000+
moderate
Frequently Asked Questions
What is the standby rating of the NG800-01?
The Blue Star NG800-01 is rated 800 kWe standby on natural gas and 475 kWe standby on LP at 60 Hz / 1800 RPM. The LP-to-NG ratio at standby is 59% — notably lower than smaller models in the gaseous lineup. Deration is: 1.5% per 5°F above 77°F inlet air temperature and 4.5% per 1,000 ft above 1,200 ft altitude.
What engine is in the NG800-01?
The PSI 40L — a 39.2-liter (2,392 cu in) V12 turbocharged-aftercooled spark-ignition engine producing 1,234 bHp (921 kWm) at 1800 RPM standby. The 40L uses a longer stroke (7.28 in) than the 32L's square bore-stroke profile (5.91×5.91 in), with the same bore (5.91 in). The oil system is 38.6 gal and the cooling system holds 45.0 gal system coolant.
Is the 4160V configuration UL-listed?
No. The NG800-01 carries UL 2200 listing, cUL listing, and CSA certification through 600VAC only. The 4160V configuration (Stamford MVWI734E alternator) is not UL-listed. Specify accordingly for projects with UL listing requirements — confirm with the AHJ whether 4160V distribution requires a listed unit.
What is the fuel inlet pressure requirement for the NG800-01?
The NG800-01 requires 30 in. water column fuel inlet pressure — significantly higher than smaller Blue Star gaseous units (11 in. WC). Verify the site gas infrastructure can sustain 30 in. WC under full-load demand conditions before specifying.
Is the NG800-01 available in single-phase?
No. The NG800-01 is three-phase only in 208V, 240V, 480V, 600V, and 4160V configurations.
650 kW standby · Natural Gas / LPG · Liquid-cooled
650 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 32L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.
800 kW standby · Natural Gas / LPG · Liquid-cooled
660 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 40L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-4160V.
650 kW standby · Natural Gas / LPG · Liquid-cooled
550 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 32L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.
600 kW standby · Natural Gas / LPG · Liquid-cooled
600 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 32L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.
600 kW standby · Natural Gas / LPG · Liquid-cooled
540 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 32L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.
500 kW standby · Natural Gas / LPG · Liquid-cooled
500 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 32L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.