Wärtsilä and Berge Bulk complete first inline shaft generator retrofit
(Posted on 08/02/23)
The technology group Wärtsilä has successfully retrofitted an inline shaft generator system on the ‘Berge Toubkal’, a cape-size bulk carrier owned by Singapore-based Berge Bulk. This is the marine industry’s first-ever shaft generator retrofit, and its successful completion will improve the vessel’s Energy Efficiency Existing Ship Index (EEXI) while reducing overall carbon footprint.
Shaft generator systems onboard ships are driven by the main engine to supply power to the mains, thus saving fuel and emissions. They are sized to eliminate the need to operate auxiliary engines while at sea. While such systems, also referred to as Power Take-Off (PTO) systems, are today’s standard installations on newbuild vessels, large inline versions with the generator sitting directly on the propeller shaft and turning at 50 to 100 rpm have never before been retrofitted.
“Berge Bulk made an industry commitment to go carbon neutral well before the IMO’s plan, and we are installing now the latest fuel-saving technologies, like shaft generators, air lubrication, or wind propulsion on our vessels,” says Paolo Tonon, Berge Bulk’s Technical Director, “Wärtsilä has a proven track record and is one of the market leaders in shaft generator systems and electrical integration.”
“Berge Bulk is one of the front runners in shipping’s transition to decarbonised operations, and we are proud to support them in this. Wärtsilä is actively working on the development of new technologies that can be integrated into existing vessel systems to make their operations cleaner and more economical,” says Torsten Büssow, Director for Ship Electrification at Wärtsilä.
The retrofitted shaft generator will also provide power to an air lubrication system installed at the same time. The system includes a Wärtsilä control system, as well as a converter to allow the generator to operate over a broad span of rpm. The existing intermediate shaft and bearings were replaced to accommodate the increased weight.
Wärtsilä has successfully delivered more than 650 shaft generator systems and has over 50 years of experience in this field.
The ‘Berge Toubkal’ retrofit was completed in Q4 2022, following ten months of preparation time.
Latest News
AtoB@C Shipping takes delivery of Fleximar
(Posted on 23/12/25)AtoB@C Shipping, a subsidiary of ESL Shipping, has announced the successful delivery of Fleximar, the... Read more
Western Bulk re-enters ship ownership with selected partners
(Posted on 18/12/25)Western Bulk, together with reputable Norwegian partners A/S J. Ludwig Mowinckels Rederi, Premium Maritime... Read more
Pacific Basin announces formation of a Sustainable Energy Solutions team
(Posted on 18/12/25)Pacific Basin Shipping Limited, one of the world’s leading dry bulk shipping companies, has announced... Read more
Columbia expects significant growth as more owners shift operations to the UAE
(Posted on 09/12/25)Columbia Group anticipates a period of strong expansion as an increasing number of international shipowners... Read more
Norse Ship Management emerges as digital leader among new-generation ship managers
(Posted on 09/12/25)Norse?Ship Management has expanded its use of Smart Ship Hub’s high frequency sensor data and... Read more
Maritime health experts welcome STCW amendments, but urge against checkbox compliance
(Posted on 09/12/25)As the maritime industry gears up to welcome the IMO’s STCW bullying and harassment training amendments... Read more
NORDEN acquires Southern African cargo activities of Taylor Maritime
(Posted on 02/12/25)NORDEN has acquired the cargo activities of Taylor Maritime in Southern Africa (previously operated... Read more
IMO delay could spark fragmentation risks, warns EmissionLink
(Posted on 02/12/25)Philippos Ioulianou, Managing Director of EmissionLink, has warned the IMO’s decision to delay... Read more
VIKAND highlights bullying and harassment as major mental health concern
(Posted on 02/12/25)VIKAND has highlighted the need for cultural change in the maritime sector as reports of bullying, harassment... Read more
DNV and WMMF guide to support shipowners' path to net-zero
(Posted on 24/11/25)The maritime industry is experiencing a period of significant transformation, driven by rapidly evolving... Read more
