Overview#
The Kohler 450REZXD is a 450-kilowatt LPG industrial standby generator in an enclosed configuration. Rated at 450 kW standby (562 kVA), it uses a PSI/Doosan engine paired with a brushless permanent-magnet pilot exciter alternator at 1800 RPM. This unit is EPA certified for stationary emergency applications, with hurricane-rated enclosure options featuring 186 mph wind load rating.
Gaseous vs diesel at 450 kW#
At 450 kW, gaseous generators represent a significant alternative to diesel for large facilities. LPG eliminates on-site diesel fuel storage, SPCC compliance, and fuel degradation concerns. However, propane consumption at this power level is very high, requiring large tank installations and reliable delivery contracts. Natural gas variants in this class offer unlimited runtime on utility gas but are dependent on pipeline availability during outages.
Our service experience#
PowerGen provides installation, maintenance, and emergency service for Kohler gaseous generators throughout Northern California. At the 450 kW class, fuel delivery system components, gas pressure regulation, and the pilot exciter alternator require specialized attention during PM service. We structure comprehensive service programs for these large-format gaseous units.



