Overview#
The Hipower HRNG-400 is a 312 kW trailer-mounted natural gas generator in Hipower's HRNG mobile series. At 312 kW, this is a large temporary power unit suited for industrial facility outages, hospital bypass power during generator replacement, major construction projects, and large events at venues with high-capacity gas service.
The HRNG-400 connects to the site's permanent natural gas supply — no on-board diesel, no fuel delivery, and no SPCC compliance. Runtime is continuous while gas supply is maintained. Gas supply capacity at 312 kW is a critical deployment planning item — the site's gas service, meter, and distribution piping must be confirmed adequate for the generator's full-load BTU demand before deployment.
CARB certification makes the HRNG-400 suitable for California temporary standby applications without air district variance. At 312 kW, diesel alternatives at this power class carry large tanks with significant regulatory and logistical overhead; the HRNG-400 eliminates all of that for gas-served sites.
PSI Engine Platform#
The HRNG-400 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.
CARB-Certified for California#
Hipower's HRNG series holds CARB certification for California temporary natural gas standby. The HRNG-400 qualifies for California permit-by-rule.
Service and Maintenance#
- Oil and filter: 1000 hours or 12 months
- Spark plugs: 1000 hours
- Air filter: 500 hours
- Gas connection and regulator: Inspect before each deployment
- Trailer and road lights: Inspect at each deployment
- Major overhaul: 30,000 hours
Our Service Experience#
OnPoint Generators supports HRNG natural gas trailer generators in Northern California. The HRNG-400 is appropriate for large temporary power applications at industrial and commercial sites where permanent gas service is available and diesel logistics are operationally or regulatorily undesirable.
