Overview#
The Generac SD100 is a 100-kilowatt diesel standby generator powered by an Iveco/FPT 6.7-liter turbocharged and aftercooled inline-six engine. Rated at 100 kW standby and 90 kW prime, it occupies the entry point of Generac's mid-range industrial diesel lineup and is EPA Certified for Stationary Emergency applications.
Generac pairs the 6.7L Iveco with their own Model 390 alternator featuring Class H insulation, permanent magnet excitation, and synchronous brushless design. The Digital H control panel provides full system monitoring with NFPA 110 Level I and II programmability, Modbus communications, and predictive maintenance algorithms.
The Iveco/FPT 6.7L platform#
The 6.7-liter inline-six in the SD100 features mechanical Stanadyne fuel injection, a 16.5:1 compression ratio, and runs at 1800 RPM producing 152 horsepower at rated kW. Piston speed is 1,559 ft/min with BMEP of 165 psi -- moderate figures that indicate a conservatively rated engine platform well suited for standby duty cycles. The 12 VDC electrical system uses a standard battery charging alternator and solenoid-activated starter.
Our service experience#
In Northern California commercial installations, the SD100 is commonly deployed at medical offices, retail centers, and small data rooms. At 7.3 gph full load, fuel consumption is economical for the power class. We recommend maintaining the 50/50 ethylene glycol coolant mix and exercising the unit weekly via the built-in 7-day programmable exerciser. The 120/240 VAC coolant heater should be verified at each service visit, particularly before winter months, as failed heaters are the most common cause of slow-start alarms in standby applications.
