EPA Stationary Standby Diesel Generators

The preferred choice for standby systems around the world

Diesel-powered generator sets are the most used standby emergency power systems throughout the world.

These gensets are to be used only when power is lost from the utility or main grid. Once the normal power source is reestablished, power is once again supplied from the normal source and these standby generators shut down.

Stationary engines are defined as permanently installed or located on site for a minimum period of 12 months. 

Standby generators and EPA emissions standards

Emergency standby power gensets are exempt from EPA emission standards for diesel generators. The EPA has ruled that Tier 2 and Tier 3 engine generators sufficiently reduce emissions and so don’t require such gensets to comply with Tier 4 Interim and Tier 4 Final rules in the U.S. 

Because regulations vary for emergency and non-emergency generator sets, and required EPA emergency generator rules compliance also varies by the size and year of the generator set, it's a good idea to check if your generator is compliant with local and state regulations.

Emergency engines can operate for 100 hours per year for any combination of the following:

  • Maintenance and testing

  • Emergency demand response 

  • When voltage or frequency deviates 5 percent or greater below the standard voltage or frequency

Our line of GENPOWERUSA generators is 100% designed, engineered, assembled and tested in the U.S. at our Miami plant and feature John Deere engines. These deliver fast-starting and reliable backup power.

Contact us today for same-day quotes on all our genuine EPA stationary standby diesel generators.