Hipower Systems · HRNG Series (Mobile Natural Gas)
Hipower HRNG-510
408 kW standby · Natural Gas / LPG · Liquid-cooled
408 kW trailer-mounted natural gas generator with PSI natural gas engine. CARB certified. Rental-ready towable unit for large temporary power from a permanent gas supply.
The Hipower HRNG-510 is a 408 kW trailer-mounted natural gas generator in Hipower's HRNG mobile series — the mid-large model in the lineup before the 700 kVA and 900 kVA units. At 408 kW, this is a large temporary power platform suited for hospital bypass, industrial outage coverage, and major construction projects with high-capacity gas service.
HRNG units connect to the site's permanent natural gas supply — no on-board fuel, no diesel delivery logistics, and no SPCC compliance. At 408 kW, gas supply engineering is a critical deployment prerequisite: the site's meter capacity, regulator sizing, and piping must be confirmed adequate before the unit is deployed.
CARB certification makes the HRNG-510 suitable for California temporary standby without air district variance. For California industrial and commercial markets where diesel regulations are tightening, the HRNG-510 provides a high-capacity CARB-certified alternative for gas-served sites.
The HRNG-510 is powered by a PSI natural gas engine running at 1800 RPM. PSI supplies spark-ignited engines to multiple standby generator manufacturers and maintains a broad parts and service network across North America. The specific PSI model designation for this output class is pending verification from OEM documentation — service follows standard PSI spark-ignited practice: spark plugs and oil at 1000-hour intervals, annual gas system inspection, no DPF, no DEF.
OnPoint Generators supports HRNG natural gas trailer generators throughout Northern California. The HRNG-510 is appropriate for large industrial and commercial temporary power applications where sites have permanent gas service and diesel logistics at this scale are operationally impractical.
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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
4,284,000 BTU/hr≈ 4284.0 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 Hipower HRNG-510 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.
Oil & filter
Every 1000 hours or 12 months
Air filter
Every 500 hours
Spark plugs
Every 1000 hours
Major overhaul
≈ 30,000 hours
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
Spark plugs
Erosion from natural gas combustion — replace at 1000-hour intervals; at 408 kW extended operation on worn plugs causes power loss
1,000+
minor
Gas pressure regulator
Pressure drop at full load — verify regulator capacity and upstream supply before deployment
4,380+
minor
Trailer road lights
Wiring damage from road vibration — inspect at each deployment
2,000+
minor
Frequently Asked Questions
What is the HRNG-510 used for?
Large temporary power applications at industrial facilities, hospital campuses during bypass periods, data centers needing maintenance windows, and large commercial construction sites where 408 kW from a permanent gas supply is needed.
What gas supply is required for 408 kW?
408 kW requires a high-volume gas supply — utility meter capacity, regulator sizing, and piping diameter must all be confirmed before deployment. A mechanical engineer should assess gas infrastructure capacity. <!-- NEEDS VERIFICATION: HRNG-510 BTU/hr and gas pressure requirements -->
Is the HRNG-510 CARB certified?
Yes. The HRNG series holds CARB certification for California temporary natural gas standby applications.
How does a 408 kW natural gas trailer generator compare to diesel at this class?
At 408 kW, diesel trailers carry large tanks with significant weight and SPCC implications. The HRNG-510 eliminates all on-board fuel — for sites with permanent gas service, it's mechanically simpler and logistically cleaner.
What is the typical deployment scenario?
Hospital generator replacement bypass, industrial planned maintenance outages, large commercial switchgear replacements, and major construction sites with high-capacity gas service.
Who provides HRNG-510 service in Northern California?
Contact OnPoint Generators for HRNG-510 deployment and service support in Northern California.
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