Most people think that hybrid propulsion systems are only useful in cars. The nice thing is that even in boats a hybrid makes sense. Even a tugboat. Ecogeek reports.
The Carolyn Dorothy, displayed before a large crowd in the Long Beach, California area on January 23, was built by Seattle, Washington-based Foss Maritime. This tug joins a fleet of existing standard tugboats servicing the needs of the ports of Los Angeles and Long Beach.
So what exactly makes this Green Assist tug a hybrid? Foss first detailed this project back in 2007. In place of a traditional tugboat engine, this boat is powered by two 670 horsepower battery packs coupled with two 335 horsepower diesel generators.
