heavy-duty
trucks and ports equipment retrofits
MEI’s Trucks and Ports
projects are efforts to reduce emissions from the heavy-duty
trucks used by municipalities or for construction, and
from the equipment used for port operations along the
Mississippi River. Diesel-powered wheel loaders, cranes
and similar equipment are long-lived and intensively used,
so generate a lot of emissions in a limited area over
time. Retrofitting this equipment with filters and other
devices can significantly lower the pollution it creates
and improve local air quality. Retrofitting these machines
is considerably more expensive than retrofitting less
specialized vehicles such as buses.
What MEI is doing:
MEI coordinated the retrofit of four earthmovers and the
engine rebuild of a fifth machine owned by Aggregate Industries,
a supplier of construction materials like crushed stone
at port terminals along the Mississippi River. MEI also
coordinated the retrofit of 44 heavy-duty diesel trucks
used by the City of Minneapolis, the City of St. Paul,
Washington County, and Cemstone, a supplier of ready-mix
concrete and aggregate products. The Cemstone vehicles
have been used on construction projects such the new Twins
stadium. The diesel oxidation catalysts and idle reduction
equipment installed on heavy-duty trucks and ports equipment
can remove up to 50% of the pollution generated by these
machines. Reducing diesel emissions from mobile sources
like these is the mission of MEI’s Project Green
Fleet, best known for its retrofits of diesel school buses.
Who Funds this Project?
Aggregate Industries
U.S. Environmental Protection Agency
Washington County
For more information, contact Bill
Droessler .
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