Case studies
Illustrative examples on decarbonization measures, costs and regulations
How to decarbonize your ship - Full Electric Tugboat
This is a case study on how to decarbonize a tug by making it full electric. It is an homage to Damen’s electric tug ‘Sparky’. In practice, fully electrifying a vessel means to install a - very large - battery pack, in this case at least 3 MWh. This would also be the largest cost component, outweighing switchboard modifications, inverter and other electrical equipment. Cost reductions in OPEX/dayrate are high, between 50% to 90% in extreme cases.
Damen’s Sparky - their first full electric tug
Damen’s first all-electric harbour tug, the RSD-E Tug 2513, is a high-powered tug with 70-tonnes bollard pull, capable of manoeuvring even the largest vessels. It can undertake two or more assignments before being recharged, which takes just two hours. The battery pack size is 2,800 kWh, resulting an approximately 1,400 kW of charging power required. The battery pack is design for the vessel’s 30 year lifetime.
Inside The World's First Electric Cargo Ship - Yara Birkeland
Dubbed ‘the Tesla of the seas’ this fully-electrified, fully-autonomous cargo ship is already making waves. The Yara Birkeland has a 7MWh battery, charged by Norwegian hydro power. She can carry a little over 100 containers. The ship cost about 25 million dollars, about three times a “conventional ship price”, but will nonetheless cut OPEX for Yara by 90%.
Get Ready for the Alfa Lift, an Electric-Hybrid Heavy Lift Crane Vessel
The Alfa Lift, a new build heavy lift crane vessel owned by Offshore Heavy Transport, is on track to enter service by early 2022. The vessel features a 3,000 ton main crane, 10,000+ m² smart deck which can be fully submerged to a depth of 15 meters and a electric-hybrid battery system made by Kongsberg.
Hurtigruten’s New Hybrid Ships
Designed in 2017 and launched in 2018, Hurtigreten has launched two new hybrid cruise vessels, the MS Roald Amundsen and MS Fridjof Nansen, that can sail fully electric for up to 30 minutes. Not only will it significantly reduce emissions, a hybrid system is also extremely quit. Arctic exploration has never been so much fun!