A Foss Maritime employee applies a compound to protect the tugboat’s steel from rust. (Benjamin Reed / For The Times)
A Canadian engineering firm designed a way to run the tugboat’s diesel engine and the electrical motor generator through the same drive shaft. (Benjamin Reed / For The Times)
A portion of the hybrid tugboat’s switchboard awaits installation. (Benjamin Reed / For The Times)
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The hybrid systems modular design would enable most existing tugboats to switch to the diesel-battery setup through a retrofit. Foss hopes that will be a key selling point. (Benjamin Reed / For The Times)
Foss Maritime’s hybrid tugboat, shown in drydock in Rainier, Ore., is one of many technologies ports are looking at to become more environmentally friendly. (Benjamin Reed / For The Times)