Ship Efficiency 2025

from 22.09.2025 to 23.09.2025

Fuel Flexibility and Ship Efficiency
- more important than ever -

Dear Participants, Speakers, and Supporters,

On behalf of the organizing team, we would like to express our heartfelt thanks to everyone who contributed to the success of the Ship Efficiency Conference.

To our participants: thank you for your active engagement, insightful questions, and willingness to share your perspectives. To our speakers: we are deeply grateful for your expertise, thought-provoking presentations, and inspiration in driving forward ship efficiency and sustainability.

To our helpers and support team: your dedication and behind-the-scenes efforts ensured that everything ran smoothly and professionally — this event would not have been possible without you.

Together, you have made this conference not only a platform for knowledge exchange but also a strong reminder of the power of collaboration in shaping the future of the maritime industry.

We look forward to continuing this journey with you and welcoming you again at future editions of the conference.

Next conference: 2027; 28.-29. September

Programme

22.09.2025

8.30 Uhr

Registration

9.00 Uhr

Welcome by Nicole Schenk, STG Board Member

Session

Session 1 Fuel Flexibility
chaired by Dr. Christoph Schladör, Vice President Decarbonisation, Carnival Maritime GmbH

Production an availability of alternative fuels

9.25 Uhr

Powering the Transition: e-Methanol’s Role in Global Marine Defossilisation

No technical barriers to scaling eMethanol: The ingredients are in place—renewable energy, CO₂ sources, and proven technology. What’s needed now is market alignment: long-term offtake agreements, regulatory clarity, and investor confidence.
eMethanol is a global defossilisation solution: It’s not just for shipping, but also for chemicals, road transport, and as a feedstock for sustainable aviation fuels. Demand is emerging across sectors and regions—supply will follow.
First projects need targeted support: As global hydrogen production ramps up, eMethanol will become increasingly cost-competitive. Integrating methanol into hydrogen or ammonia projects is technically simple—what’s needed now is the right policy environment and risk-sharing mechanisms.

Thorsten Herdan, Chief Executive Officer, HIF EMEA GmbH

9.50 Uhr

Availability and logistics of low carbon ammonia
Lars Wittenberg, Senior Project Manager Business Development New Energy, MB Energy Holding GmbH & Co. KG

Propulsion systems for alternative fuels

10.15 Uhr

Sustainable Fuels Technology Development for Wärtsilä

Decarbonising of the marine and energy sectors is urgent and requires a wide range of measures
Wärtsilä’s portfolio provides several solutions towards a net-zero future and fuel flexibility is the key
Concepts for ICE operation on the future fuels like Biofuels, Ammonia, Hydrogen, and Methanol are already being developed and demonstrated

Kaj Portin, General Manager Sustainable Fuels + Decarbonisation, Power Supply, R+D, Wärtsilä Finland Oy

10.40 Uhr

Coffee break/table discussion

11.10 Uhr

Industry-Leading Technologies for a Multi-Fuel Future – Everllence’s pathway towards minimum GHG emissions with maximum operational flexibility

Alternative fuel types incl. pros and cons
Market demand and forecast reg. alternative fuel types for marine propulsion
2-stroke engine technologies for low-carbon and carbon-neutral fuels
4-stroke engine technologies for low-carbon and carbon-neutral fuels
Retrofit options

Dr. Gunnar Stiesch, Chief Technology Officer, Member of the Executive Board, Everllence SE

Operational experience

11.35 Uhr

Ships of the Future: Technology, Energy Transition, Digital Transformation

Shipowners view on energy transition and examples to improve efficiency
Roles of new fuels and fuel supply
Hybrid and digital solutions
Optimization of technical and commercial performance

Ron Gerlach, Technical Director, Stena Rederi AB

12.00 Uhr

Maritime Energy Transition – Is the industry on track to meet global decarbonization goals?

Reaching compliance with IMO + EU Regulations – is the time schedule realistic?
Decarbonisation strategies
Avaliablity of alternative fuels

Rasmus Stute, Area Manager Germany, DNV SE

12.25 Uhr

Panel Discussion: Is there a best choice or regarding alternative fuels?
Dr. Hermann J. Klein, former President of STG

13.15 Uhr

Lunch

Session

Session 2 Environmental Efficiency/Technology
chaired by Dr. Carsten Spieker, Senior Director GEA

Propulsion improvement

14.25 Uhr

Increasing efficiency by retrofitting of propellers – an excellent measure for existing vessels
Dr. Lars Greitsch, Managing Director, Mecklenburger Metallguss GmbH

14.55 Uhr

Improvement of ship efficiency by optimization of rudder and installation of propulsion improving devices

Energy Saving Devices like twisted rudders or propulsion improving devices offer a practical, cost-effective retrofit solution to improve ship efficiency and meet environmental regulations by reducing fuel consumption and CO₂ emissions.
Energy Saving Devices have a proven performance and optimized design via CFD and/or model testing. They are installed across different vessel types, from slow-going vessels like tankers and bulker to slender vessels like container ships.
The installation of these devices is easily done for both newbuildings and retrofit projects during routine dry-docking, making them attractive for shipowners seeking minimal operational downtime.

Alessandro Castagna, Sales Manager, Becker Marine Systems GmbH

15.25 Uhr

Coffee break/table discussion

Energy management

15.55 Uhr

A Cleaner Future for Shipping: Fleet modernization at Hapag-Lloyd

ongoing newbuilding projects
dual fuel (methanol) retrofits
fleet upgrade (energy efficiency) measures

Dr. Christoph Thiem, Director Fleet Innovation, Hapag-Lloyd AG

16.25 Uhr

Hybrid Horizons: Redefining Cruise Ship Efficiency with Gas, Batteries, and MVDC
Uli Bauch, Solution Manager for marine applications, Siemens Energy

16.55 Uhr

Panel Discussion
Karsten Fach, Senior Adviser, Marine Service GmbH

17.45 Uhr

Get together buffet with beer and lounge music

18.00 Uhr

Dinner Speech
Peter Tamm, Director International Maritime Museum Hamburg, Partner Continental Chartering

23.09.2025

8.30 Uhr

Admission and Welcome

Session

Session 3 Environmental Efficiency/human factor and artificial intelligence
chaired by Kate Schmits-Stapelfeld, Fleet Personal Manager, Bernhard Schulte GmbH

The role of the human factor regarding improvement of efficiency

9.05 Uhr

All hands on deck to turn a vision into reality
Höegh will offer first decarbonised voyages with ammonia from 2027, realising a vision from 2020 sooner than expected. Decarbonisation is at the heart of our strategy and true transformation requires a whole of organisation approach. We do our own crewing, putting us into a unique position to train and develop our seafarers, who are instrumental in realising our ambitions.
Dr. Mirjam Peters, Chief Customer Sustainability Officer, Höegh Autoliners

9.30 Uhr

Crew at the Core – Driving Ship Efficiency Beyond Technology
Cordula Boy Fernandez, HR Marine Manager, Bernhard Schulte Shipmanagement
Lennart Swoboda, Head of Autonomy, Bernhard Schulte GmbH & Co. KG

10.00 Uhr

Coffee break/table discussion

Use of artificical intelligence in logistics / routing / energy management

10.30 Uhr

Voyage Intelligence AI-powered routing for full autonomy: are we there yet?
Till Braun, Senior Sales Manager, StormGeo GmbH

11.00 Uhr

Closing the Loop from Data to Operational Insight AI-Driven Energy Efficiency in Cruise Operations

Data Driven Operations – collect, analyse, act
Data Science and AI the foundation we build on – Machine Learning Targets and the Ship Performance modelling
Generative AI and LLMs – the next frontier in human machine interaction

David Thomson, Head of Customer Engagement, ALFRED Maritime GmbH

11.30 Uhr

Panel Discussion
Christoph Gessner, Managing Director, CPO Holding

12.15 Uhr

Break - sandwiches, snacks

Session

Session 4 Emerging technologies
chaired by Ramona Zettelmaier, Marine Chief Executive, Central Europe, Bureau Veritas

Nuclear power for ship propulsion

13.15 Uhr

NUCLEAR IN THE MARITIME

Nuclear in the maritime context and history
Regulatory Context and latest updates and initiatives by IAEA and IMO, including resolutions expected at the MSC 110
Possible nuclear reactor designs and technologies for civil ship propulsion

José Esteve, Offshore Gas and Power Market Leader, Bureau Veritas

13.40 Uhr

Building ‘LIBERTY’ – a complete Maritime Civil Nuclear Program
Robert Chaplin, Principle Marine Engineer, Core Power

Alternative fuels/storage/equipment

14.05 Uhr

Supply systems for using biofuels on board of ships
Peter Falk, Senior Director - Product Management & Marketing, GEA Global Marine Business

14.30 Uhr

Challenges for Supply Systems for Methanol and Ammonia
Dr. Luca Lori, Global Application Manager Fuel Conditioning Systems, Marine Separation, Alfa Laval

14.55 Uhr

Panel Discussion
Dr. Hans Gätjens, Managing Director, STG

15.30 Uhr

Farewell Buffet

Status: September 2025

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STG > Veranstaltungen > Ship Efficiency > Ship Efficiency 2025

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