Page 2: of Marine News Magazine (April 2023)

Towboats, Tugs & Barges

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Marine News April 2023 • Volume 34 Number 4


Features 20 Floating Offshore Wind:

New Seascape, New Challenges 20

Offshore wind energy planners are giving close review to ? xed-tower systems in order to extend lessons learned to tomorrow’s ? oating solutions.

By Tom Ewing 26 Ammonia-powered Tug

Conversion Underway 26

A ? rst-of-its-kind ammonia-powered, zero- emission tugboat will be put to the test by

Brooklyn, N.Y-based startup Amogy in late 2023.

By Eric Haun 30 2023 Shipbuilding Report

U.S. shipbuilders seek stability in a market prone to ? uctuation.

Philly Shipyard Amogy University of Maine 30

By Eric Haun 4 Editor’s Note 16 Column: Zero-emission Port 39 Tech File: Offshore Vessel Charging Vehicles Key to Decarbonization System Passes Harbor Tests 5 Authors

By Jacob Whitson, CALSTART 40 Vessels 6 By the Numbers: 36 Tech File: Fuel Savings Are Just 43 People & Company News US Offshore Wind a ‘Nudge’ Away 44 Editorial Calendar

By Philip Lewis, Intelatus

By Eric Haun 45 Products 38 Tech File: Navy Taps Digital 8 Insights: 46 Classi? ed Advertising Jennifer Carpenter, AWO Tools for Frigate Bridge Design 48 Advertisers Index

On the Cover

The tug, towboat and barging sector is the heart of the United States’ commercial maritime industry. (Photo: © Arturo / Adobe Stock) 2 | MN April 2023

Marine News

Marine News is the premier magazine of the North American Inland, coastal and Offshore workboat markets.