Environment
Tacoma Rail is committed to being a responsible steward of the environment. In addition to using environmentally sound practices in our daily work procedures and projects, whenever possible we implement technologies that help us reduce our energy consumption and lessen our environmental impact.
We’ve undertaken several major eco-friendly efforts, including:
Idle reduction technology
Tacoma Rail has installed idle reduction technologies on all of its locomotives. Idle reduction lowers our fuel costs and reduces emissions considerably. These technologies work by actively managing the idle time of the locomotives in a way that can’t be done manually. Idle reduction also extends the life of the locomotive by shutting the locomotive down to a ready-use state, meaning it is kept warm and ready while not in service.
Tacoma Rail has four locomotives (two GP38-2s and two GP40-2s) that were equipped with idle reduction technologypurchased from Kim Hotstart Manufacturing Company and ZTR Control Systems in May 2007. Now, instead of idling, the 2000 horsepower GP38-2s and 3000 horsepower GP40-2s automatically shut down when not in use. The Hotstart Diesel Driven Heating System (DDHS) uses a small 27 horsepower diesel engine to keep the locomotive engine above 100 degrees Fahrenheit and charge the batteries so the locomotive can be restarted easily.
The ZTR SmartStart system automatically shuts down and restarts the Hotstart system and the locomotive as necessary. SmartStart also records data and provides detailed fuel savings reports. The Hotstart-SmartStart combination has proven to reduce idling by as much as 90%, which in turn has reduced locomotive engine wear, fuel consumption, emissions and noise.
Over a five-year period, the four DDHS-fitted locomotives:
- Save 400,000 gallons of diesel fuel
- Reduce fine particulate matter by 3 tons
- Reduce nitrogen oxides by 140 tons
- Reduce carbon monoxide by 15 tons
Ultra-low sulfur diesel
Tacoma Rail converted to ultra-low sulfur diesel in June 2006. It was not mandated by the Environmental Protection Agency (EPA) for all locomotives until 2012. Ultra-low sulfur diesel has sulfur content of 15 parts per million (ppm) instead of the 500 ppm typical of regular diesel fuel.
Repowered locomotives
In late 2011, Tacoma Rail acquired two EMD GP-22eco 2,000 horsepower locomotives. These are repowered units with new engines and other components that make them compliant with EPA Tier II diesel emission standards, as well as providing the advantages of more modern control systems. These two units, numbered 2200 and 2201, were assembled in Tacoma at Progress Rail.
Eco-tip super-stack fuel injectors
In November 2005, Tacoma Rail installed eco-tip super-stack fuel injectors on its fleet of locomotives. Advantages of the injectors include:
- 3% fuel savings at full load
- 44% reduction in particulate matter
- 75% reduction in smoke opacity
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