News & Reviews News Wire News photo: Tier 4 unit debuts for North Carolina

News photo: Tier 4 unit debuts for North Carolina

By Trains Staff | March 1, 2023

| Last updated on February 5, 2024


Locomotive is first for NC DOT to use Blended After Treatment System

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Passenger train with two locomotives at one end and one at the other
Piedmont train No. 75 departs Raleigh, N.C., on Tuesday, Feb. 28. The second locomotive, No. 1859, is testing a Tier 4 emissions system. Laurence Pearlman

RALEIGH, N.C. — The North Carolina Department of Transportation has begun testing a locomotive equipped with a Tier 4 emissions control system. On Tuesday, Feb. 28, state-supported Piedmont train No. 75 included three locomotives, with one, No. 1859, equipped with Rail Propulsion Systems’ Selective Catalytic Reduction technology. The train departed Raleigh for Charlotte with 1859 as the second unit.

The system, referred to as “Blended After Treatment System,” or BATS, reduces emissions from both the prime mover and the head-end power generator.

3 thoughts on “News photo: Tier 4 unit debuts for North Carolina

  1. You do realize that your readers ARE railfans and other interested in the rail industry. We really like info like what 1859’s make and model are, what prime mover is inside, what BATS actually does to lower the emissions, does it effect power and in what way? This type of reporting is lazy for you and boring to we readers. Do better.

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