Is my diesel generator certified as RICE NESHAP compliant?

Diesel Engine EPA Emissions Regulations for RICE NESHAP

As a local Florida contractor of EPA RICE NESHAP compliance upgrades for diesel generators, we are often asked; how can I know if my diesel generator meets the emissions levels required to participate in a load management program that requires a Non-Emergency rated engine?

4/22/16 NOTE: The previous EPA exemption enjoyed by Duke Energy Load Control customers is scheduled to end on Monday May 2nd 2016.

Owners of affected engines will have until December 31st 2016 to demonstrate compliance – or forfeit your annual savings by leaving the program.

Contact John Macgowan to understand how this regulation change will affect you and to schedule a no cost RICE NESHAP compliance evaluation of your generators 727-432-5335 or by email

If you’re generator does require compliance upgrades, we can provide a cost effective, turn-key proposal shortly after visiting your facility. 

First, a quick explanation of how the EPA classifies the use of diesel electrical generators…

  • Emergency Standby Generators are those used only for emergencies; i.e. lights out, when the utility has failed and can not provide power to your building. These generators can be small (only supporting critical/life-safety loads) or large enough to power the entire facility.
  • Non-Emergency Generators can be used during emergencies, however they can also be used to provide power when there’s a perfectly good utility electrical feed from your power company. These generators are typically large enough to power all the loads present in the building.

Examples of Non-Emergency use are…

  • Regular monthly exercising and maintenance
  • Participation in a load/demand management or interruptible power program with your utility that brings financial gain.
    • Note that there are two categories of utility programs. Each affects owners differently. A full explanation is available in our compliance checklist. UPDATE: this has been changed and there’s now only one category – all programs will require non-emergency engines for participation.
  • Islanding (running your generator proactively when there’s an approaching storm) to prevent any disruption in electrical service.
  • Peak Shaving
  • Remote location operation – when there is no electrical utility service available.

Duke Energy’s new Schedule B Non-Emergency Standby Generation rate (download the tariff here) is an example of an electrical utility that offers different discount rates, based on the type/level of EPA emissions certification of your engine.

UPDATE: Duke Energy has published a revision to their Rate Tariff (download the revised tariff here) that identifies the Dec 31st 2016 deadline for compliance.

You can download the complete (as of Nov 2015) EPA regulations here.

Download our easy to follow, diesel generator compliance checklist – here.