Study finds hybrid tugboat delivers significant reduction in criteria pollutant emissions compared to conventional version
Green Car Congress
NOVEMBER 19, 2010
The hybrid tug used in the study, the Carolyn Dorothy ( earlier post ), is powered by two 1,342 kW Cummins QSK50-M main engines and 317 kW Cummins QSM11-M auxiliary generators. It also has 126 soft gel lead acid batteries for power storage that are separated into two arrays with 63 batteries each. Each array stores 170.1
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