Fleetzero and Glosten have teamed up to develop world’s longest-range hybrid electric ship.
Glosten has been working with Fleetzero on the retrofit of a Lightering Support Vessel owned and operated by AET. The partnership said this collaboration marks a major step forward in the effort to offer zero-emission global shipping and expand the reach of electric propulsion in commercial maritime applications.
The vessel is being outfitted with a plug-in hybrid-electric propulsion system and will transit primarily on battery power once the conversion is complete.
“This vessel will be a major milestone—not just for us, but for the entire industry,” said Steven Henderson, CEO of Fleetzero. “Partnering with Glosten allows us to showcase how our propulsion technology can enable economical, cleaner, and more efficient operations, while pushing the boundaries of what’s possible in shipping.”
With the vessel design already underway, Fleetzero and Glosten will transition into detailed engineering in the coming months, with construction expected to begin in mid-2026. Once operational, the vessel will serve as a model for long-range hybrid-electric propulsion worldwide.
Morgan Fanberg, CEO & President of Glosten added, “We’re excited to support Fleetzero in transforming this vessel. It’s a bold move toward the next generation of marine technology, and exactly the kind of advancement we’re proud to support.”