Overview#
The Hipower HNG-265 is a 263 kW stationary natural gas standby generator in Hipower's HNG series. At 263 kW, the HNG-265 covers large commercial and light-industrial standby requirements where diesel storage at this scale would involve a large tank, SPCC compliance, and ongoing fuel management. CARB certification enables California permit-by-rule, removing the air district variance step.
The HNG-265 supports 347/600V alongside 120/208V and 277/480V, accommodating the full range of commercial and industrial electrical services found in California construction.
Gas supply engineering is a critical consideration at 263 kW — the utility meter, regulator, and distribution piping must be designed for the full-load BTU demand. A licensed mechanical engineer should evaluate gas infrastructure before finalizing the installation.
PSI Engine Platform#
The HNG-265 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 for this output range is pending verification from OEM documentation — service follows standard PSI spark-ignited practice: spark plugs and oil at 1000-hour intervals, no DPF or DEF.
CARB-Certified for California#
Hipower's HNG series holds CARB certification for California natural gas stationary standby. The HNG-265 qualifies for California permit-by-rule, enabling standard air district approval without a source test.
Service and Maintenance#
- Oil and filter: 1000 hours or 12 months
- Spark plugs: 1000 hours
- Air filter: 500 hours
- Gas line and regulator: Annual inspection
- Major overhaul: 30,000 hours
Our Service Experience#
OnPoint Generators services natural gas standby generators in the 250+ kW class throughout Northern California. Facilities at this scale benefit most from the simplicity of utility-supplied gas — eliminating the operational overhead of diesel storage and delivery that scales with generator size.



