Bi-Fuel TM Generators, Generac Generators, Diesel generators, Cuyahoga County Ohio, Avon, Painesville, Erie County Pennsylvania, Meadville The only true bi-fuel system, Generac's Bi-Fuel generators are EPA certified from the factory, tested and installed - all other bi-fuel systems are aftermarket systems retrofitted in the field. Generac's Bi-Fuel system components are specifically engineered to integrate together, with full warranty and service support included.


  • Features & Benefits
  • FAQs
  • Spec Sheets
  • Warranty

Major components are designed and manufactured by Generac in a vertically integrated environment, ensuring the highest reliability standards.

Easily serviced by any qualified diesel technician.

National industrial dealer network of factory-certified technicians with expertise in everything from system design to diagnostics and repairs.

24/7 emergency response, warranty service and scheduled preventive maintenance programs.

Readily available replacement parts and maintenance items.

Gaseous gensets up to 300 kW

Bi-Fuel systems up to 600 kW

Modular Power Systems (MPS) up to 9000 kW


What size gensets are available and what are my fuel options?
Diesel models range from 10 kW to 600 kW.
Gaseous models range from 18 kW to 300 kW.
A Bi-Fuel option is available on selected models.

Can Generac gensets be integrated with my building management system?
The PowerManager® G-100 features integrated PLC functions and numerous I/Os that make it easy to customize controls and link directly with facilities management systems. Two Modbus RS 485 ports accommodate controller-to-annunciator or building management system communications.

Can I monitor the system's performance from a remote location?
An optional Ethernet modem with an RS232 port provides remote computer interface using our GenLink® software. Connected PCs display continuously updated information about the generator's operating condition. Input values and operational parameters can be easily viewed using point-and-click menus and status screens. Valuable information such as generator usage data, alarm history and predictive maintenance reminders are easily accessible.

If an alarm occurs, it is immediately displayed on connected remote computers, and the PowerManager control panel can be programmed to immediately send out a call to both the user's and your Generac dealer's pagers or cell phones. The dealer can use GenLink to remotely diagnose the problem, modify parameters to minimize the impact and immediately dispatch a service truck with the necessary parts to quickly correct the situation.

How many automatic transfer switches can be used in a single system?
There is no limit on the number of open transition, closed transition or bypass isolation switches that can be used within a system. Only one soft load switch can be used.

Can the PowerManager G-100 controller interface with third party transfer switches?
Yes, provided that the switches have a two-wire start, and can be inhibited by the controller from switching to the emergency position until adequate generator power has come onto the generator bus.

If I purchase a single standby generator, can I add units later and convert to a Modular Power System?
No. The G-100 controller will not interface with the control system for a Modular Power System. If you think you might need to expand capacity in the future, you should purchase a single MPS genset with the PowerManager G-200 controller.


Power RatingModelEngine
25kW  QT025A 2.4GN
35kW  SG035 4.2GN
40kW  SG040 4.2GN
45kW  SG045 4.2GN
50kW  SG050 6.8GN
55kW  QT055A 5.4GN
60kW  SG060 6.8GN
70kW  SG070 6.8GN
70kW  QT070A 6.8GN
80kW  QT080A 5.4GN
80kW  SG080 6.8GN
100kW  QT100A 6.8GN
100kW  SG100 6.8GN
130kW  SG130 6.8GN
130kW  QT130A 6.8GN
150kW  SG150 6.8GN
150kW  QT150A 6.8GN
150kW  SG150 13.3GTA
175kW  SG175 13.3GTA
200kW  SG200 13.3GTA
230kW  SG230 13.3GTA
250kW  SG250 13.3GTA
275kW  SG275 13.3GTA
300kW  SG300 13.3GTA
Warranty TypeWarranty Coverage
Standard 2 Year Basic 
Optional 2 Year Comprehensive 
Optional 5 Year Basic 
Optional 5 Year Comprehensive