Hybrids move Madison

As part of an effort to cut the city’s CO2 emissions by 100,000 tons by 2011, the Metro Transit System of Madison, WI, has taken delivery of five hybrid diesel-electric buses

As part of an effort to cut the city’s CO2 emissions by 100,000 tons by 2011, the Metro Transit System of Madison, WI, has taken delivery of five hybrid diesel-electric buses built by GM-Allison. The Madison fleet joins 815 GM-Allison hybrid buses already running in 71 cities, according to the manufacturer.

Two of the Metro Transit hybrids have been assigned to shuttle routes on the Univ. of Wisconsin – Madison campus. The other three will work commuter routes on the city’s streets.

Based on tests conducted by the National Renewable Energy Laboratory, the GM-Allison hybrid bus technology is expected to deliver up to a 75% improvement in fuel economy compared to diesel-powered transit buses while reducing particulate matter up to 97%, carbon monoxide up to 60%, NOX up to 39% and hydrocarbon emissions up to 75%.

GM’s Allison Transmission Inc., a maker of heavy-duty transmissions and hybrid propulsion systems headquartered in Indianapolis, manufactures the hybrid technology used in the new buses. The bus chassis are manufactured by Gillig Corp. of Hayward, CA.

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