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Questions or Comments: terp@tceq.texas.gov

Estimator for Locomotive Equipment and Engines

Estimate your reduction in NOx emissions and discover how competitive your grant application might be.

Instructions

For each piece of equipment or engine you would like to replace, use this estimator to determine the:

  • cost per ton of NOX emissions reduced, and
  • total reduction of NOX emissions.

This tool provides estimates based solely on the information you submit. We compute the final values.

Should you have a scenario that this estimator does not address, please email terp@tceq.texas.gov.

Data You’ll Need

Look up the following information in the Technical Supplement for Locomotives:

  • engine load factor
  • family emission limit (optional)
  • hours per year the equipment or engine is used

You may also use the technical supplement to calculate emissions reductions and cost per ton.

Example for Multiple Pieces of Equipment or Engines

You are requesting $30,000, $35,000, and $45,000 to replace three 2002 diesel engines with newer, cleaner diesel equivalents. The old and new engines are rated at 75 horsepower and operate 95% of the time in an eligible county.

This will reduce the NOX emissions by 1.9041 tons per engine. Divide the total amount you requested, $110,000, by your total reduction of NOX emissions, 5.7123 tons. This results in a cost per ton of $19,256.69.

$110,000 ÷ 5.7123 tons = $19,256.69 per ton

About These Grants

Visit either the ERIG Program webpage or TxVEMP Ferry, Tug, and Switcher webpage for more information on eligibility and how to apply.

Enter Your Information

Locomotive Equipment Type

Old Engine

For the NOX Emission Standard, please use the standard emission rate for the category, standard power density, displacement, and year of this engine. See the technical supplement for the emission standard.

New Engine

Contract Length, Equipment Usage, and Time in Eligible Areas

Note: For ERIG the minimum is 55%.

These areas use a different formulation of diesel fuel that we will take into account in our calculations.

Requested Grant Amount

Note: An ERIG applicant could receive less money than they request if the application does not meet the $35,000 cost per ton requirement or the 80% incremental cost limit.

Your Estimated Cost Per Ton

Emission Standard for Your Old engine
Emission Standard for Your New Engine
Standard Annual Usage for Your Old Engine
Standard Annual Usage for Your New Engine
Total NOX Reductions
Cost Per Ton