First Hybrid Tug in Europe – Port of Rotterdam's 'RT Adriaan' - PILOTAGE - SeaNews
K Line unit to build battery-powered electric tugboat - Offshore Energy
Hybrid propulsion: A viable tug option | WorkBoat
Industry closely watching hybrid tug performance – Professional Mariner
Harbour and escort tugs and other sea-going vessels - Wärtsilä
Master Boat Builders Announces Launch of “Spartan” Hybrid Tugboat for Seabulk - Master Boat Builders, Inc.
E-Kotug tugboat - E-Mobility Engineering
Med Marine and Robert Allan Signed MoA For VoltRA Series Electric Hybrid Tugboat Designs | The Global Maritime Business News Portal - The Maritime Economy Publications
ABB to power Japan's first electric tugboat for efficient and sustainable operations
New tug fitted with SCHOTTEL RudderPropellers and mechanical hybrid solution | SCHOTTEL - YOUR PROPULSION EXPERTS
Azimuthal Hybrid Drive system SYDRIVE-E for the world's first LNG hybrid tug | SCHOTTEL - YOUR PROPULSION EXPERTS
Bernardus Hybrid Tug - Ship Technology
HYBRID ELECTRIC TUG FOR BRITISH COLUMBIA – TRX Marine
Bernardus Hybrid Tug - Ship Technology
Diesel-Electric Power Plus Batteries Makes for a Very Efficient Tugboat
Port of Luleå 36 Metre Hybrid Icebreaker Tug - Robert Allan Ltd.
Seagate to build hybrid tugboat for Tokuyama area | Electric Hybrid Marine Technology