Hipower Systems · HRNG Series (Mobile Natural Gas)
Hipower HRNG-300
235 kW standby · Natural Gas / LPG · Liquid-cooled
235 kW trailer-mounted natural gas generator with PSI natural gas engine. CARB certified. Rental-ready towable unit for temporary power from a permanent gas supply.
The Hipower HRNG-300 is a 235 kW trailer-mounted natural gas generator in Hipower's HRNG mobile series. At 235 kW, this unit handles large temporary power applications: mid-large commercial buildings during electrical maintenance, active construction sites with high-capacity gas service, stadium events, and data centers requiring temporary power during critical infrastructure work.
The HRNG-300 connects to the site's permanent natural gas supply — no on-board fuel, no diesel delivery, no fuel spill risk. Runtime is unlimited while gas supply is maintained. For construction rentals in the 30–90 day range, this eliminates the fuel replenishment logistics that diesel trailer generators require.
CARB certification enables California temporary standby without air district variance. In California markets where diesel towable regulations are tightening, the HRNG-300 provides a compliant mid-large temporary power option for sites with natural gas service.
The HRNG-300 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 trailer generators throughout Northern California. The HRNG-300 is appropriate for mid-large temporary power applications at sites where permanent gas service is available and diesel fuel logistics are undesirable.
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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
2,467,500 BTU/hr≈ 2467.5 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-300 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
1,000+
minor
Gas pressure regulator
Inlet pressure drop under high load — verify regulator capacity 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-300 used for?
The HRNG-300 provides 235 kW of temporary natural gas power at construction sites, large commercial buildings during electrical work, large events, and data centers requiring temporary bypass power — connecting to the site's permanent gas supply.
What gas supply is needed for 235 kW?
235 kW requires a substantial gas supply at the deployment site. Gas supply line capacity and inlet pressure must be confirmed before deployment. A mechanical engineer should assess site gas capacity for extended rentals. <!-- NEEDS VERIFICATION: HRNG-300 BTU/hr and gas pressure requirements -->
Is the HRNG-300 CARB certified?
Yes. The HRNG series holds CARB certification for California temporary natural gas standby.
How long can the HRNG-300 operate continuously?
Runtime is limited only by the gas supply continuity and service intervals (oil changes at 1000 hours). For extended construction rentals, schedule oil changes to align with the rental duration.
What is the typical application for a 235 kW towable gas generator?
Large commercial construction sites with active gas service, buildings undergoing switchgear replacement or electrical panel work, stadium and arena events with on-site gas infrastructure, and data centers needing bypass during UPS maintenance.
Who provides HRNG-300 service in Northern California?
Contact OnPoint Generators for HRNG-300 deployment and service support in Northern California.
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