Overview#
The Hipower HGM-55 is a 52 kW stationary natural gas standby generator in Hipower's HGM series — a compact natural gas lineup for small commercial buildings where space is constrained and natural gas service is already available. Built in Olathe, Kansas, the HGM-55 is CARB certified for California natural gas standby applications.
At 52 kW, the HGM-55 covers essential standby loads for a small office building, neighborhood retail center, or light-commercial facility. Natural gas supply from the building's utility meter eliminates on-site fuel storage, SPCC compliance, and diesel delivery logistics.
Engine Platform#
The HGM-55 is powered by a General Motors Vortec 5.7L V8 naturally aspirated spark-ignited gaseous engine, the same proven small-block V8 platform used across industrial, agricultural, and fleet applications. At 1800 RPM on natural gas, the 350 CID (5.7L) engine produces 100 hp (108 hp on LPG). Marathon Electric provides the alternator (model 361PSL1601) with SE350 AVR. As with all spark-ignited natural gas generators, maintenance centers on spark plugs, oil changes, and gas system inspection — no DPF, DEF, or high-pressure diesel injection maintenance.
CARB-Certified for California#
The HGM series holds CARB certification for California natural gas stationary engine standby applications. This enables permit-by-rule approval in California air districts without a source test or air district variance.
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 Hipower natural gas generators throughout the Bay Area and Northern California. The HGM-55 is appropriate for small commercial facilities where gas is the primary building fuel and diesel standby would introduce unnecessary storage and compliance complexity.
