Theatre 1 Vessel case studies

Design of first battery-powered inland towboat

Joshua S Sebastian
Vice president – operations/senior naval architect
The Shearer Group Inc
The presentation will focus on the design and optimization process along with benefits and analysis of the design of the first inland towboat designed to operate on 100% battery power in support of the cargo operations in the Port of Charleston, South Carolina, USA.

Britain’s biggest warship – HMS Queen Elizabeth aircraft carrier - integrated full electric propulsion

Dr Makhlouf Benatmane
Marine navy solutions leader
GE Power Conversion
HMS Queen Elizabeth aircraft carrier (QNLZ) – procured by the UK Ministry of Defence for the Royal Navy – is the first aircraft carrier in the world to utilize integrated full electric power and propulsion system (IFEP). It presented a step change in size and complexity. This paper will discuss the merits of IFEP, QNLZ large equipment descriptions, methods and processes adopted from early design phases, through testing and trials undertaken to ensure all equipment is set to work in a safe and efficient manner to gain acceptance and deliver the required capability to the Royal Navy.

Eastern Québec's first hybrid lobster boat - lessons learned

Patrick Denis
Professional engineer
Conception navale FMP
Conception navale FMP has developed and built a small lobster fishing boat using outboard engines in parrallel with an electric outboard. This setup allows the fishermen to reduce noise and harshness while hauling trap because the slow speed reduces the energy requirements for the boat. We would like to share our experience in designing, building and operating this boat so others can learn from our experience and contribute to the development of better hybrid workboats.

Electric hybrid and all-electric systems for workboats

Dom Molloy
Chief international operations
Glas Ocean Electric
Dr Aaron MacNeil
Glas Ocean Electric
Dr Sue Molloy
Glas Ocean Electric
Glas Ocean Electric builds all-electric and hybrid conversion kits for boats. We are moving toward kits that can be installed without requiring vessels to be moved to a shipyard. We're presenting our recent project where we converted a traditional eastern Canadian fishing boat and while we did it we measured emissions and underwater noise. We'll present the conversion we did, some of the results we measured and the potential CO2 impact of converitng fishing boats. Lastly, we'll show you the kit we need as a community to accomplish large scale electrification.

Conversions of smaller vessels to 750V DC hybrid systems

Dan Hanes
Sea3 Systems LLC
Many ferries, tugs, workboats, yachts and other vessels of less than roughly 500 tons are ideal candidates for conversion to hybrid-electric propulsion. This presentation will examine the cost and performance tradeoffs that affect the economic viability of undertaking a refit to hybrid power. Driveline, electrical system and battery options will be compared, and design examples of conversions employing 750V DC electrical systems will be explored in detail. Considerations for incorporating onboard photovoltaic arrays will also be presented.

The business case for small hybrid electric vessels

Daniel McIntyre
Vice president
3GA Marine Ltd
The presentation will explore the business case for how small vessel owners can increase their profits by retrofitting their vessels or building new small vessels with available hybrid electric or all-electric technology. It will discuss the opportunities to reduce fuel, minimize downtime and reduce maintenance, ultimately highlighting that the transition from conventional technology to hybrid technology is not only affordable but also smarter business choice.

Theatre 2 Integrating hydrogen and alternative fuels

An integrator's perspective on hydrogen in marine applications

Jason Aspin
Aspin Kemp & Associates Inc. (AKA)
New technologies need to be designed not only for new future proof vessels but also so that they can repurpose existing vessels to be greener, more reliable and competitive to operate. Designs must accommodate not only today’s traffic and passenger needs but also the needs of tomorrow. One way to achieve Zero Emission vessels is through the use of Hydrogen or other alternative fuels to diesel. As an experienced integrator in the Marine hybrid and electric industry, AKA has been investigating the best way to incorporate Hydrogen into the Marine industry and will share insights during this presentation.

Advances and future challenges for hybrid and all-electric propulsion in the 21st century

Luke Briant
Director - marine solutions Americas
Siemens Energy Inc
As marine technology has evolved, diesel-electric propulsion (DEP), hybrid and all-electric power and propulsion systems have become the new norm. Hybrid and all-electric propulsion have been centered around lithium-ion battery energy storage systems (ESS) with the long-standing promise of dramatic improvement in battery performance with future technology development. Discussions about the limitations of battery systems have focused on safety and limited energy storage capacity: safety targeting susceptibility to catastrophic failure due to thermal runaway, and limited energy storage capacity focused on energy density and the space/weight limitations associated with this on board a vessel. The latest trends in the marine industry have focused on hydrogen-based propulsion for blended hydrogen fuels for internal combustion engine (ICE) applications, and the use of fuel cell (FC) technology. With ESS requiring supercharging, and hydrogen-based systems requiring fueling, challenges in our industry have become apparent. Limitations, solutions and future expectations associated with this both globally and in the USA will be discussed.

Viable pathways to decarbonization through electrification, hybridization and fuel strategies

Joel Thigpen
General manager, marine new build sales
Designing vessels today that consider the future is challenging but also a tremendous opportunity to leverage the most viable pathways to decarbonization. Commercialization of technologies and the availability of fuels today and in the future, along with the potential for electrification and hybridization of propulsion systems, mean that today’s vessels need to consider these future potentials and regulations. This presentation discusses how best to design a vessel that will be ready for the potential technologies and challenges of the future while designing a particularized and optimized solution today.

MV Hydrogen One: the world’s first ultra-low-emission methanol-fuelled towboat

Robert Schluter
Co-founder and managing director
e1 Marine
To meet IMO’s carbon reduction target by 2050, hydrogen fuel cell technology is a solution that can bring significant carbon reduction while addressing the need for power, range and duration in the maritime sector. Our methanol-to-hydrogen M2H2 technology is the missing link: hydrogen produced with low carbon, cost-competitive and safe to handle. We will share with the audience the design and specifications of the world’s first methanol-hydrogen fuel cell towboat, MV Hydrogen One, to be in the water in Q4 2023. We will also discuss applications of this technology to enable the maritime industry to transition from low carbon to carbon neutrality.

Construction of the first US hydrogen fuel cell passenger vessel

Ron Wille
President and COO
All American Marine Inc
This presentation will outline the lessons learned when building the Sea Change. There will not be any one-size-fits-all solution to replace the internal combustion engine. However, hydrogen fuel cell technology has the potential to leapfrog traditional diesel and hybrid electric propulsion methods as one of the most beneficial for maritime applications.

Panel Discussion

This panel discussion will follow the presentation from Ron Wille of All American marine which will outline the lessons learned when building the Sea Change. The panel will bring together the significant contributors to the project to provide their perspectives, answer question and provide the audience with a thoroughgoing project review.
Ron Wille
President and COO
All American Marine Inc
Peter Brooks
OEM account manager, marine and port solutions - power and propulsion solutions
BAE Systems Inc
Danny Terlip
Lead engineer
Zero Emission Industries

Theatre 3 Energy storage for hybrid & electric shipping

Safety of Li-ion battery systems on board ships

Syb ten Cate Hoedemaker
Managing director
Maritime Battery Forum
The Battery Safety Joint Industry Project (JIP) initiated by the Maritime Battery Forum has its first results. This presentation will highlight those results and inform the audience about the next steps for the JIP, creating the safety standards for Li-ion battery systems on board ships.

Experiences of battery system approvals from a Class perspective

Guillaume Vileyn
Senior Electrical, Fire, and Safety Surveyor
Bureau Veritas Marine Inc.
Bureau Veritas has approved, and has ‘in service’ Class expertise, of a significant number of E&H vessels, part of the approval process includes a Risk Analysis of the battery system and this is often an unfamiliar subject to some or all of the potential participants yet has a large impact on the safety of the vessel. BV will discuss the reasons why a risk assessment is done along with the requirements of the exercise, the outputs, and the requirements for approval of the risk assessment from a Class perspective to provide some key takeaways

Lithium-ion battery failure modes and using advanced failure analysis techniques to drive innovation and improve safety.

Kevin C White
Principal scientist
The precise description of the content and scope of this presentation will be added shortly.

Energy as a service for the marine industry

Nicole Geneau
Senior vice president, development
The marine industry is under considerable pressure to decarbonize, but such decarbonization comes with challenges. Faced with ageing infrastructure and high energy demands, industry leaders can turn to Energy as a Service to deliver custom onsite energy solutions for resilient and cost-predictable operations at no upfront cost. In this session, learn how AlphaStruxure, an Energy as a Service provider, transformed Montgomery County, MD's bus fleet to be fully resilient against power outages while reducing carbon emissions by 62%, and how Energy as a Service can help the marine industry achieve similar results.

Pay-as-you-go energy service for electric and hybrid vessels

Brent Perry
Shift Clean Energy and Chair of Zero Emissions Ship Technology Association
This presentation will outline a first-of-its-kind service delivering clean and reliable energy to any ecosystem including ports, terminals, inland waterways and windfarm support vessels. The new service offers fully charged ePod battery cartridges that are connected through cloud-based service and management centers. Typical energy storage barriers of cost, size, weight and charging times are all drastically reduced. Simply, use energy from the ePods, then exchange them for new, fully charged ones. The pay-as-you-go subscription service eliminates commercial risk and product liability for industry and saves money from day one. The presentation will explain the service and the benefits to users.

Cooling schemes of marine ESS

Geancarlo Ramos
Senior applications engineer
Spear Power Systems
This presentation will provide an overview of both air and liquid cooled energy storage systems and the impact cooling system selection can have on ESS sizing and life estimation, including case studies of real operational profiles.

The power of rightsizing - hybridization of battery and fuel cell

Dr Manfred Stefener
Vice president of fuel cell systems
Freudenberg e-Power Systems
The heavy-duty market is a challenging one to electrify. With purely battery powered systems it is simply impossible to meet range and load requirements of deep sea shipping or long-distance truck routes. Therefore the hybridization approach of a battery combined with a fuel cell is a powerful leverage to even outfit the toughest applications with environmental friendly powertrains. Freudenberg fully committed to make future mobility a green one and develops hybrid systems for these special purposes.

Benefits of supercapacitor technology for electric and hybrid marine

Harnam Trehin
Lead engineer
Spar Power Technologies Inc
Neither acid or lithium batteries are particularly environmentally friendly or safe to operate, and they offer a limited lifespan. This presentation makes the case for supercapacitors, which offer a 25+ year lifespan, relatively instant charging, instant power in cold conditions, stable efficiency and performance through the entire lifespan. They are safe to operate and do not suffer from acid gas generation or thermal runaways.

Fuel cell solution for marine applications

Alan Mace
Product manager
Ballard Power Systems Inc
Electrification of propulsion system is advancing and fuel cell technology provides the opportunity to produce, on board, large quantity of power with zero-emission using hydrogen as a fuel. This presentation will review the fuel cell value proposition for marine applications, product design considerations, as well as opportunities and challenges for the adoption of fuel cell technology. The presentation will review some of the product development considerations including, system architecture and safety as well as hydrogen supply and on board fuel storage. Examples of current fuel cell ferry projects in Scotland and Norway will be used.

The future of electric marine solutions

Markus Kreisel
Managing director
Kreisel Electric
As the electrification of cars and commercial traffic is the new standard, we now must take the next steps towards sustainable marine solutions. Kreisel Electric‘s goal is to stop ocean pollution through the electrification of maritime solutions. The incorporated safety features of the immersion cooling technology prevent cell-to-cell propagation of thermal runaway and lead to the highest safety in relation to energy density. Furthermore, the minimal temperature spread on pack and cell level enables an increased service life and reliability.

The first ZEETUG performance review and introducing two new green projects: COMBO GREEN and ZEEPORT

Ferhat Acuner
General manager
Navtek Naval Technologies Inc
ZEETUG30, the world’s first fully electric harbor tug, has been in service for over 500 days. The questions about her performance are now being answered: questions about the health of the batteries, opex saving figures, emission saving figures, the first survey results from class, charging and discharging rates and more. This presentation will provide the answers to those questions. The second part of the presentation will introduce two new projects: COMBO GREEN, a new 10,000 DWT electric propulsion multi-purpose cargo ship utilizing solar panels, wind turbines, batteries and hydrogen FC generators; and ZEEPORT, the decarb engineering of an existing port, electrification of all port facilities, provision for ZEETUGs, solar power generation and ESS. All three projects have the final target of a zero-emission electrically powered port.

Theatre 1 Simulation, modeling and testing

Measuring power losses in electric motors and inverters

Mitchell Marks
Business Development
Power losses have many sources and it is often difficult to determine the exact source. In this webinar, we will review the basic sources of losses in electric machines and how to measure them, including copper losses, mechanical losses, and iron losses. The topics covered include: Copper, iron, and mechanical losses Power loss measurement Measurement accuracy

New hybrid ADC technology: The best of both worlds

Michael Davis
This presentation will describe a new hybrid analog to digital converter which offers both a high bandwidth mode and a high dynamic alias free mode. The high bandwidth mode can perfectly acquire impulse, step, and square signals; a mode typically found in SAR ADCs. The high dynamic alias free mode is used for frequency domain analysis, like sound and vibration and similar to classical Sigma-Delta ADCs. Currently, users would require two separate DAQ devices for these measurements. This new technology, which provides both modes in one device, is encompassed within the SIRIUS XHS DAQ system which does not require any complex setup or programming knowledge and DewesoftX data acquisition software offers unbeatable plug and play simplicity. These and many of the other features of the technology will be outlined.

Using the load profile to predict battery performance and lifespan

Ed Bourgeau
Electric and hybrid systems product manager
Thrustmaster of Texas Inc
Using batteries to replace diesel engines or augment the performance of diesel generators is becoming a marine power plant requirement. This paper will explain how to decide on the type and size of a battery best suited for the application at hand. The basis of this decision involves determining and reviewing the load profile of the application. With this load profile, mathematical models of the battery can be used to dimension the battery. With the profile and model, a solution that fits the commercial framework can be determined.

Integrated model-based design using hardware in the loop (HIL)

Matt Baker
Vice president of grid modernization
Typhoon HIL Inc
The increasing electrification of shipboard power systems requires high-fidelity modeling and simulation capability to verify and validate system performance during the design and construction of the vessel. At the same time, there is a requirement to test tens of thousands of lines of code running on digital controllers that are the norm. A solution to test both electrification and digitalization demands is required. Typhoon HIL provides an integrated model-based design process using hardware in the loop to address the requirement.

Driveline simulation under new technology trends and innovative product development

Dr Mahamudul Hasan
Director R&D coupling
Regal Rexnord Corporation
There are many new concepts for parallel hybrid or pure electric drivelines with zero emissions. The efficient driveline concepts create more harmonic excitation as well complex loadings on couplings, gearboxes and propellers. Torsional vibration modeling of complete systems for fuel savings and hybrid driveline will be presented, as will efforts to find breakthrough innovations for couplings and connected driveline products. In addition, new products will be presented that improve efficiency in the driveline. Our new product solution will facilitate the green future and help customers solve problems and overcome challenges. Simulation results were compared with measured data, resulting in a good match.

Theatre 1 Power and control Systems

Direct-current decisions: batteries and grids

Will Ayers
Chief electrical engineer
Elliott Bay Design Group
The presentation will first explore the advantages and disadvantages of different lithium-ion offerings, their chemistries, cell, module and rack form factors, air vs water cooling options, safety enhancements and cable and bus routing. It will then discuss DC vs traditional AC propulsion grids, the benefits of DC, its primary disadvantage in the speed and magnitude of a DC bus fault and different system integrator solutions for the latter.

Common DC bus solutions for hybrid and diesel-electric vessels

Dr Ben Gully
Chief technologist
SPOC Grid Inverter Technologies
The presentation will explain how best to take advantage of and benefit from technologies such as batteries, common DC buses and variable-speed generators, as well as how to make it easier to implement these systems. Learn how the right solutions can also provide benefits such as reduced weight and footprint of equipment, elimination of AC switchgear, enhanced redundancy, and simplified circuit protection and coordination.

Understanding short-circuit analysis in DC distribution

Kevin Andersen
Technical solutions manager
ABB Inc - Marine & Ports
The precise description of the content and scope of this presentation will be added shortly.

Building ships for the future

Asbjørn Halsebakke
Manager, technical solutions marine
Yaskawa Environmental Energy / The Switch
This presentation will show how it is possible to build a ship today that fulfills current regulations as well as likely future environmental changes. Using power distribution blocks around an innovative DC hub, electronic bus link breaker and electronic DC breaker, ships can switch from AC to DC for better fuel and cost savings. This offers unrivalled reliability and flexibility to run on any future power source.

DC switchboards in combination with new energy sources

Roger Sandnes
VP sales North America
Vard Electro US
Vard Electro sees plug-in potential for green energy sources as the industry faces an AC/DC dilemma on transmission networks. Green energy technologies such as batteries, fuel cells, solar and wind are on the rise in shipping, but these will require a shift in existing power distribution systems on board vessels to realize gains in fuel efficiency and environmental performance. Diesel-electric systems with engines running at fixed speed have typically used AC (alternating current) switchboards, or power grids, to supply power for propulsion systems and thrusters, alongside frequency converters to control propeller speed for greater efficiency. However, the use of AC switchboards is now being challenged by the emergence of renewable energy sources and energy storage systems mostly using DC (direct current) that require multiple DC-AC conversion, meaning more components with greater complexity and less control of the power system. This has increased the focus on the potential advantages in terms of controllability, flexibility, cost savings and reduced fuel consumption of DC switchboards, which were first developed about a decade ago but have so far only been installed on a limited number of vessels such as hybrid and all-electric ferries, PSVs and fishing vessels. Vessels with variable loads are dynamic position vessels, fishing vessels, ferries, all vessels that may be upgraded in the future, vessels with a high amount of VFD loads, well boats, cable-laying vessels, etc.

Sub-24m craft – accelerating the adoption of vessel electrification

Gary C Wright
Krensen Limited
Viewed from a boat builder’s perspective when facing increasing requests to ‘go electric’, it is not a case of when but how. Pioneering is not always an option when considering delivery deadlines and reputation, so risk mitigation is key. The presentation will provide an insight into electrification challenges and adoption when providing safe electric control for HV propulsion technology solutions. It will focus on high-performance electric powertrains replacing 200hp to 500hp engines and integration of lithium batteries and associated ancillaries on board. The presentation will encompass topics including barriers to adoption, technology transfer, development, collaboration, validation. warranty and time to market.

Theatre 2 Port and charging infrastructure

Perspective on charging technologies and port electrification

Jude Tomdio
Principal electrical engineer
American Bureau of Shipping
This presentation will cover the following: a general overview of charging technologies; a general overview of port electrification; a brief history of charging technology and port electrification; the impact of new technologies on existing assets and ports; the driving factor behind the use of new technologies; ABS class requirements and how they are evolving with the use of new technologies and their impact on existing assets and port facilities.

Planning and Funding Zero-Emission Demonstration Projects

James Dumont
Director, ports and fleets
Build Momentum, Inc.
This presentation would provide an overview of strategies to secure funding from local, State, and Federal grant, loan, and cap and trade funding programs for zero-emission technology deployments. Topics and funding sources covered will include: Planning Activities: Research, Design, and Development (RD&D) Projects: Demonstration Projects: Fuels and Infrastructure: Partnering for Success: Policy and Regulatory Alignment: Major Funding Programs

Electrifying vessels and energy storage solutions for zero-emission ports

Guillaume Clement
Vice president e-marine
Leclanché Norway AS
The world’s transportation infrastructure is moving rapidly toward the use of electric vehicles – cars, trucks, buses, trains and more. But when it comes to maritime vessels, the equation is a bit more complicated since there aren’t any ‘charging stations’ out at sea. It isn’t possible to have, for example, e-ferries without a reliable, cost-effective and energy-efficient charging infrastructure in place. In this presentation, Guillaume Clement will present his company’s vision for electrifying vessels to reduce emissions in ports and comply with regulations. He will also show how to create a zero-emission ports and harbors solution architecture that will make it easier and more feasible for ship designers and port authorities to design, build and welcome to their shores the latest generation of sustainable vessels. The presentation will focus on the energy storage solution for vessels as well as the onshore infrastructure.

Presentation by Polisea Group

Galen Hon
The PoliSea Group
The exact title and description of the proposed presentation will be announced shortly.

Design considerations for recharging electric vessels: a case study in developing a solution for the eWolf

Speaker to be advised shortly
Crowley Shipping
This presentation will provide an overview of the operational capability of the eWolf and the design considerations required for developing a recharging solution.

Electrification of inland waterways: case studies from propulsion to house load supply and charging

Phillip Goethe
Director - product management
The exact scope and details of this presentation will be added shortly

Developing a non commercial demonstration platform and training venue integrated into a seagoing vessel

Milton Korn
Chief engineer - training ship and professor of the practice
Texas A & M University Galveston
Enhanced electrification of the marine and port sector in the US is progressing. The development and deployment of energy storage, fuel cells and other energy storage and transformation technologies both afloat and ashore offer opportunities to reduce the environmental footprint and enhance CAPEX, OPEX and reliability. Integration of these technologies into the existing infrastructure into public utility (ship to shore power) and shipboard electrical networks pose challenges. The efforts to develop a non-commercial demonstration platform and training venue for the industry integrated into a seagoing vessel for these new technologies at TAMUG are explored.

High voltage E-vessel connections & charging

Alfredo Rivas
Executive sales director Americas, ports & maritime division
Cavotec USA
This presentation Alfredo Rivas of Cavotec will explore the topic of high voltage connections for charging electric and hybrid vessels and the range of solutions for new builds and retrofits and varying sizes and differing requirements of vessels and of port infrastructure.

Enabling zero-emission shipping – vessel battery charging and cold ironing

Greg Reese
Manager - energy, industrial and maritime business North America
Wabtec (TransTech)
Contributing 2.5% to worldwide CO2 emissions, marine traffic is challenged to reduce its impact . With their 2030 and 2050 targets, IMO has set challenging milestones. To achieve them in time, fleet electrification is a significant enabler. The paper reports about fully automated charging solutions for ferry electrification projects between 0.5 and 15MW. Onshore power supply systems for ‘cold-ironing’ will be addressed as well. The recent solutions provided help to swiftly take the benefit of the CO2-saving potential that battery ferries and land power supply offer. We will showcase recent solutions for various types of vessels and individual ferry and terminal operator needs.

Liquid-cooled battery module and DC fast charging

Paul Gumber
Sales manager - batteries and chargers
This presentation will describe an innovative liquid-cooled, energy-dense battery module and pack solution engineered to meet the high power, energy and vibration demands for recreational and commercial watercraft. In conjunction with its marine battery technology, BorgWarner has also engineered a ruggedized DC Fast Charger, capable of charging two vessels simultaneously at 60kW or one at 120kW, without the need to reconfigure the unit. With an output voltage range from 200 Vdc to up to 900Vdc, it enables the charge of any vessel size and of future generation batteries. With the compatibility of all of the connection standards (configurable), together with the support of the latest OCPP version, this technology is designed to be part of recreational marinas and commercial ports.

Magnetic plugs – the new standard for e-boat charging

Sanad Arida
Conventional pronged plugs are fraught with flaws: corrosion and arcing can cause fires; plugs are not always connected properly and can be dislodged quite easily even if they are. What is required is a foolproof system that connects smartly and accurately and stays connected safely throughout the charging process. VoltSafe technology replaces prongs with magnets similar to Apple’s MagSafe. The system can accommodate not just recreational but also commercial vessel requirements and sets a new standard for electrical safety in shore power. This presentation will describe the system, its technology and the benefits it brings to shore power systems.

Theatre 3 Transmission and propulsion

Naval hybrid power and propulsion systems – definition, technologies and latest configurations

Dr Makhlouf Benatmane
Marine navy solutions leader
GE Power Conversion
Vessels have diverse operational profiles and governments have tightening of budgets and legislation. This leads to new vessel builds facing tough times, requiring efficiency, minimal operational costs with cleaner technologies that meet stringent environment regulations. A variety of power and propulsion architectures have been used over the years. No single solution meets all the requirements, but selection needs to meet a range of benefits most suited to operational role. The focus of this presentation is to: Provide a hybrid propulsion concept overview of the key electrical, mechanical qualities and issues leading to the shift towards such systems. Describe different configurations and performances of hybrid propulsion from demonstrated and operational systems in the commercial and naval world. Describe technologies used and systems modes of operation. Examine future architectures including energy storage and explore the benefits, flexibilities these can bring to the hybrid propulsion sphere.

Advancing marine to zero emissions with the next-generation power and propulsion system

Peter Brooks
OEM account manager, marine and port solutions - power and propulsion solutions
BAE Systems Inc
BAE Systems, a leader in electric propulsion, will introduce its next-generation power and propulsion system for the marine market. The technology will provide a flexible solution to vessel operators, with increased electrical efficiency and vessel range to help them reach zero emissions. The technology leverages the company’s 25 years of experience developing and integrating electric propulsion systems. The HybriGen Power and Propulsion next-generation system builds on that core technology for vessels but uses smaller and lighter components for increased electrical efficiency, increased propulsion power and a simplified installation process. The modular accessory power system (MAPS) and modular power control system (MPCS) allow for a scalable, tailor-made solution to fit the specific power and propulsion requirements of each vessel, ranging from sailboats to tugs and passenger ferries.

The implications of electric motor power curves for vessel propulsion

Donald MacPherson
Technical director
HydroComp, Inc
Alex Walker
Naval architect
HydroComp, Inc
Many prime movers are principally defined by their rated power and RPM. However, the full picture of power delivery must consider the power above and below the rated RPM. This is represented by what has come to be called a “rated power curve”, which can vary greatly between different prime mover types, such as internal combustion engines (ICE) and electric motors (EM). The effect of curve shape on vessel performance and propulsor selection can be significant, particularly for those considering EM prime movers for their vessels. This presentation will describe the differences between ICE and EM power curves, as well as discuss the implications of EM power curves for different operating modes (such as transit or towing), continuous versus peak conditions, considerations for motor overload, and partial load efficiencies. A case study will demonstrate propeller selection decisions for an EM application with calculation of operational current demand.

Hybrid upgrades – efficiency and reduced emissions

Ian Brouwer
General manager, project sales Americas
Wärtsilä Marine
In this presentation Ian Brouwer, who is general manager of project sales for Wärtsilä Marine Americas will demonstrate and explain how hybrid upgrades to existing vessels can drive efficiency improvements and reduce emissions.

Getting the most out of your diesel engine and batteries in a parallel hybrid application

Klaus Meyersieck
Global product manager
Twin Disc Inc
The presentation will explain how to extend the use of energy storage while optimizing diesel fuel consumption. Learn how to maximize battery performance and increase charge time by utilizing the transmission, drive motor or genset to recharge.

Going Electric: The Paradigm Shift is Now!

Techsol Speaker will be announced shortly
Electrification is not the future, it’s now, and it’s for everyone. Ships are built for a while and whatever is built today will need to be ready for tomorrow even if we don’t know yet which alternate source will become dominant. That means an electric propulsion so your ship can harness those alternate sources whichever ends up on top. Even if today’s sources don’t seem to meet your requirements, it’s highly probable they can, but Diesel engine use optimization, operations coverage and charging infrastructure are the key challenges to meeting GHG reduction targets. A few creative approaches are possible and some of them will be presented.

Hybrid system configuration and optimization in high-speed ferry applications

Diego Muller
Future products manager
Hamilton Jet
New Zealand
Using a specific waterjet-powered vessel example, this presentation shows the level of detailed power, speed and energy usage analysis possible in ferry route optimization, and how it can influence the choice of hybrid system design and propulsion configuration.

Presentation by Transfluid

Bart Meenks
Electric marine propulsion product manager

Theatre 1 Electric & hybrid ferry projects

Leading the charge: lessons learned from the conversion and operation of the US’s first all-electric ferry

Sean A Caughlan
Senior marine engineer
Four years after entering service as the first battery-electric ferry in the US, the Gee’s Bend ferry is continuing reliable operation on the Alabama River. The vessel was converted from diesel to all-electric and re-entered operations in February 2019. In this presentation, the vessel operator and designer will come together to discuss various design and operational issues that have arisen and how they were resolved. These issues will be generalized into lessons learned and recommendations for others in the industry who are considering electrification for new-builds or conversions.

ELECTRA - making long range, fast, electric ferries possible with hydrofoils

Jeremy Osborne
Chief technology officer / co-founder
Boundary Layer Technologies
ELECTRA is the fastest and longest range electric ferry under development. It's enabled by Boundary Layer's proprietary hydrofoil technology and podded propulsion system. The presentation will cover the benefits of hydrofoils for electric ferries, a customer case study showcasing the considerations and challenges faced by an operator when introducing an electric ferry into their operations, and

Electric fast ferries are viable today

Morgan Brown
Green City Ferries Americas
Zero-emission fast ferries are viable today. Advances in batteries, fuel cells, vessel design and innovative financing make them a real choice. Advanced LTO marine batteries are safer, charge three times faster and have a service life five times longer than previously. Vessels with lower weight (carbon fiber) and less friction (foil-assist) use less energy and have longer range. In addition, standardized, serial production together with a single platform (battery and fuel cell) make them great value. With innovative finance (e.g. Boatplan Stockholm 2025), long-term bareboat charter allows ferry operators to get started immediately.

Zero-emission conversion of the Marilyn Bell I

Shawn Balding
General manager
Canal Marine & Industrial Inc
The Marilyn Bell I is the first truly zero-emission, Li-ion ferry in Canada following its conversion by Canal. Canal also implemented the first and only automatic shore charging system for an electric vessel in North America. In this presentation, we will cover the lifecycle of the project, challenges, design decisions and results for propulsion, power electronics and control, system integration and energy storage systems.

AC drives in hybrid power generation and propulsion

Jim Lerner
Vice president of sales, eastern NAM
Danfoss Drives
Martti Tuomas Alatalo
Global director - marine and offshore
Danfoss Drives
Steve Meyer
Regional sales manager
Danfoss Drives
The Wasaline M/S Aurora Botnia, ordered by the cities of Vaasa in Finland and Umeå in Sweden, is a new vessel from RMC shipyard in Finland. It uses clean LNG/battery hybrid with shore power and is deemed the most environmentally friendly ro-pax ship. Danfoss AC drives optimized electric power generation, electric propulsion, hybridization, power conversion, and improved performance and efficiency for a myriad of applications on board the vessel. Notable features include battery-electric maneuvering when entering and leaving the harbor and main electric propulsion 2x6MW and battery power 4x1.5MW. The vessel began making regular trips between Vaasa and Umeå in autumn 2021.

Solar ferry boats for public transport

Sandith Thandasherry
Founder and CEO
Navalt Solar and Electric Boats
ADITYA, India’s first solar ferry and winner of the Gustave Trouvé Award for the world’s best electric ferry 2020, completed five years of successful operation in January 2022. In the five years, the boat has transported 1.5 million passengers over a distance of 90km across backwaters without a single drop of fuel and saving 150,000 liters of diesel. The fuel savings ensured the system achieved breakeven in three years. This was made possible by an innovative design and choice of technology. Such solar ferries can be replicated across the world.