Overview#
The Kohler 250REZXB is a 260-kilowatt LPG industrial standby generator in an enclosed configuration. Rated at 170-260 kW standby depending on voltage, it uses a Doosan engine paired with a brushless permanent-magnet alternator at 1800 RPM. This unit is EPA certified for both stationary emergency and non-emergency applications, with hurricane-rated enclosure options available featuring 186 mph wind load rating.
Gaseous vs diesel at 260 kW#
At 260 kW, gaseous generators eliminate on-site fuel storage requirements and SPCC compliance. LPG provides clean combustion with lower emissions than diesel and avoids fuel degradation issues common with low-runtime standby diesel. At this power level, propane consumption is significant, so tank sizing and delivery contracts become important planning considerations for extended outage scenarios.
Our service experience#
PowerGen provides installation, maintenance, and emergency service for Kohler gaseous generators throughout Northern California. The Doosan engine platform in the REZX series handles the 200+ kW class reliably, and we structure PM programs around annual ignition, fuel system, and coolant inspections with attention to the higher-capacity fuel delivery components.



