Overview#
The Hipower HNI-100 is a 100 kW standby natural gas generator powered by a PSI 5.7L V8 turbocharged aftercooled engine. This model is the first PSI-powered unit in the HNI series — above 80 kW, Hipower transitions from the Origin 3.6L platform to PSI's proven V8 architecture to meet the higher output demands of the 100+ kW class.
At 100 kW, the HNI-100 covers mid-commercial standby: medical office buildings, multi-tenant offices, restaurants with large kitchen loads, and commercial properties where an existing natural gas meter makes gas-powered standby operationally straightforward. CARB certification across the full HNI range (30–1000 kW) removes the air district approval barrier for California installations.
Engine Platform#
The PSI 5.7L V8 TCAC (turbocharged aftercooled) is a proven stationary spark-ignited engine running at 1800 RPM. PSI supplies engines to multiple standby generator manufacturers and maintains a broad parts and service network across North America. Eight cylinders produce smooth, balanced power delivery at 100 kW.
Maintenance is simpler than diesel Tier 4 alternatives: eight spark plugs at 1000-hour intervals, oil and filter at 1000 hours or 12 months, annual gas system inspection. No DPF regeneration, no DEF, no high-pressure fuel injection servicing.
CARB-Certified for California#
Part of the CARB-certified HNI series (30–1000 kW). The HNI-100 qualifies for California permit-by-rule — standard air district approval without source test or variance. For California projects in the 100 kW class, CARB-certified natural gas options outside the Big 4 are limited, and the HNI-100 provides a competitive alternative.
Service and Maintenance#
- Oil and filter: 1000 hours or 12 months
- Spark plugs (8 total): 1000 hours
- Air filter: 500 hours
- Gas line and regulator: Annual inspection
- Ignition system: Annual inspection — per-cylinder coil output and timing
- Major overhaul: 30,000 hours
Our Service Experience#
OnPoint Generators services PSI V8-powered HNI units throughout Northern California. The 100 kW class is one of the most common standby sizes in mid-commercial construction — the HNI-100's PSI engine is a known, well-supported platform that our technicians maintain routinely.
