Shipping’s new energy technologies

The maritime industry’s future holds a multitude of alternative fuels and energy technologies. What does this rapidly evolving ecosystem look like?
Below is a TRL-agnostic overview of on-board hardware technologies that are at different stages of development – from lab prototypes to commercially ready systems. Several companies manufacture and supply these technologies, but this overview is focused only on those developing them for maritime deployment.

You can sort through the overview using the ‘Filter Technologies’ dropdown menu.
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  • All Categories (177)
  • Energy Conversion (64)
    • Ammonia Combustion Engine (4)
    • Ammonia Cracker (6)
    • Direct Methanol Fuel Cells (HT-PEM) (2)
    • Ethanol Combustion Engine (1)
    • Hydrogen Combustion Engine (3)
    • Methanol Combustion Engine (6)
    • Methanol Reformer (3)
    • Molten Carbonate Fuel Cells (1)
    • Nuclear / Molten Salt Reactors (3)
    • On-board electrolysis (5)
    • Proton Exchange Membrane Fuel Cells (26)
    • Solid Oxide Fuel Cells (8)
  • Energy Efficiency (53)
    • Air Cavity Systems (11)
    • Hydrofoil / Tidal (7)
    • Solar (5)
    • Waste Heat Recovery (5)
    • Whale Tails (1)
    • Wind Technologies (26)
  • Energy Storage (58)
    • Compressed Hydrogen Storage (12)
    • Lead Acid Batteries (1)
    • Liquid Organic Hydrogen Carrier (4)
    • Liquid Storage (H2 a/o NH3) (11)
    • Lithium Batteries (20)
    • Metal air / water batteries (3)
    • Redox Flow Batteries (4)
    • Solid Hydrogen Storage (4)
  • Other (27)
    • Ammonia Refueling (1)
    • On-board emissions capture (20)
    • Hydrogen Refueling (6)
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ABB

Many mini-whale tails work together in the Dynafin to deliver efficient propulsion. Waste heat recovery systems for vessels with >20MW mechanical power.

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Add Technologies

Inflatable wing sail technology.

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Advanced Wing Systems

Semi-rigid wing sail for yachts.

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Advent Technologies

Formerly SerEnergy, acquired by Advent in 2021. HT-PEM methanol fuel cells for auxiliary power supply.

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Air Liquide

World leader in gases, technologies and services for Industry and Health.

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Airseas

Airseas is bringing flight control technology to the shipping industry.

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Akasol

High-performance lithium-ion battery systems for ships and boats.

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Alfa Laval

On-board CO2 capture and liquefaction system (ReMarCCAbLE project). And boiler systems that recover waste heat from engines.

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Alma Clean Power

Alma (previously Clean Power) is a provider of high-temperature fuel cell technology that can run on multiple fuels.

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Alsym Energy

Water-based, manganese and metal oxide batteries.

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Ammonigy GmbH

NH3 cracker, ICE that operates on NH3 + H2 and NH3 afterburner.

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Amogy

Integrated liquid NH3 solution for transportation including storage, cracker and H2-fuel cell.

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ANEMOI

Movable and foldable rotor sail technology.

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Aqualung

Membrane technology that allows CO2 capture even at low concentrations.

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Armada Technologies

Developing a ‘passive air lubrication system’ that operates in a semi-passive mode, and decouples system lubricity from ship speed.

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AYK Energy

Energy storage systems for marine and industrial applications.

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Ayro

Wingsail technology for commercial vessels.

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Azane Fuel Solutions

Providing solutions for small-scale ammonia bunkering; building a green ammonia value chain in Norway.

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Ballard Power Systems

PEM fuel cell products manufacturer for markets such as heavy-duty motive, portable power and material handling.

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Bar Technologies

The company’s WindWings system combines wind propulsion and route optimisation.

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BayoTech

Trailer-to-ship high pressure gaseous hydrogen delivery.

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Becker Marine Systems

COBRA Compact Battery Rack for marine applications.

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BeHydro

Spark ignited engines for 100% hydrogen combustion.

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Beyond the sea

Offers two solutions: LibertyKite, a self-standing kite and Seakite, a fully automated kite-system.

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Beyonder

Combination of a Li-ion cell and a capacitor; turning Norwegian sawdust into battery cell technology.

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Bloom Energy

Manufacturer of solid oxide fuel cell systems.

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Blue Technology

Stayed wing sail capable of 360 degree rotation.

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Blue World Technologies

Methanol fuel cells based on a high-temperature PEM technology platform.

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Bluefins

Hydrofoil attached to a ship’s stern through a set of mechanical articulations; inspired by whale tails.

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Bosch

Engineering and tech company developing H2 combustion engines and SOFC technologies among others.

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Bound4Blue

Autonomous rigid sails systems to be integrated on a wide range of vessels.

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Boundary Layer Technologies

Building high speed container ships using hydrofoil technology.

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Bramble Energy

Light-weight, printed circuit board fuel cell, marinized in collaboration with SEA-KIT.

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Britishvolt

Lithium-ion batteries for mobility applications.

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BWX Technologies

Manufacturer of naval nuclear reactors. Working with Crowley on shallow-draft ships with 5-50 MW modular micro-reactors for shore power supply.

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Calix

Developing RECAST, technology based on limestone, to capture on-board carbon emissions.

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Carbon Ridge

Modular, externally mounted systems capturing CO2 from exhaust and storing it in liquified tanks.

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Carbotreat

Carbon dioxide Capture Utilization (CCU) and Carbon dioxide Capture Storage (CCS) to make processes ready for a CO2 neutral economy.

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Caterpillar Marine

Developed the Cat 3500-E series dual-fuel methanol engines for tugs.

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cellcentric

Volvo + Daimler JV. Developing PEM fuel cells for heavy-duty commercial vehicles and other applications.

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CellCube

Manufacturer of vanadium redox flow battery systems.

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Ceres

Low-cost, fuel-flexible SOFC systems that can run on natural gas, as well as biogas or hydrogen.

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Chart Industries

Design and manufacture of highly engineered cryogenic equipment used from the beginning to the end in the liquid gas supply chain.

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Circonica

Developer of hollow electrode, loose plate, reversible solid oxide fuel cells.

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ClearFlame

High temperature, controlled compression ignition engines for ethanol in heavy duty applications.

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Climeon

Modular and scalable HeatPower systems to tap into the excess thermal energy. A single unit is capable of generating up to 355kW.

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CMB Tech

Hydrogen refuelling solutions for marine applications.

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Computed Wing Sail

System based on a rigid, inversible, asymmetric profile provides regular propulsion even on fast ships with limited drift effects.

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Conoship Projects

Developing redox flow-battery technology in collaboration with VanadiumCorp and Vega Reederei.

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CORE POWER

Scalable atomic power technology for ocean transport and heavy industry.

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Corvus Energy

The leading supplier of Energy Storage Systems for maritime, offshore, subsea and port applications

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Cryovat

Design, manufacturing, installation and maintenance of cryogenic equipment.

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Cryoworld

Advanced cryogenics made in the Netherlands.

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Cummins

Creates the power solutions that the world depends on.

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DAMEN

Family owned shipyards group working to unlock ‘Oceans of Possibilities’.

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Daphne Technology

Green converter to reduce emissions slip of NOx, N2O, SOx, methane, ammonia and CO2.

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Dealfeng

Rotor sail technology based on the Magnus effect to create additional thrust for vessels.

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Demaco

Cryogenic piping and bunkering systems for maritime.

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Doosan

PureCell® systems operate 24/7 with high efficiency and ultra-low emissions.

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e1 Marine

Methanol-to-hydrogen generator technology.

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E22

Flow batteries with a recyclable, non-flammable Vanadium-based electrolyte. Track record of > 12k cycles at marginal maintenance cost.

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EAS Batteries

Solutions for hybrid electric and electric applications for ships, underwater vehicles and harbour equipment.

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eCap Mobility

With the PRISMA fuel cell product line from REFIRE Technology, eCap offers solutions for light and heavy applications.

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Eco Marine Power

Offer eco-friendly hybrid marine power, efficiency and propulsion solutions.

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Econowind

Foldable, autonomous and containerised VentiFoil systems for wind-assisted propulsion.

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Ecospray

Fuel cells that can operate on H2 as well as methane; and CO2 capture technology based on calcium salts.

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Elcogen

Solid oxide cell and stack technology.

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Electriq Global

Potassium borohydride-based technology for hydrogen storage and transportation.

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Elring Klinger

Specialist in lightweight solutions, e-mobility, sealing and shielding technology, tooling, and engineering services.

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EODev

Result of the pioneering work done on the Energy Observer. H2 generator, H2 range extender and on-site hydrogen production.

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EPRO Advance Technology (EAT)

Solid state, porous silicon (Si+) that can be reacted with water to produce H2.

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EST Floattech

Safe and modular batteries for zero-emission shipping.

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Evolve Hydrogen

Polymer-based electrolyser that can extract hydrogen from natural water sources.

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Expleo

Developer of SOFC + carbon capture solution to enable the use of e-methanol as a maritime fuel.

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Flying Fish

Working on a concept design for a new hydrofoil solar boat class

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Foreship

Air Lubrication System for cruise vessels.

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Fraunhofer IMM

Catalytic converter to convert residual ammonia and hydrogen into nitrogen and water.

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Freudenberg Group

Freudenberg Group develops leading-edge technologies and excellent products and services for about 40 markets and for thousands of applications.

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Furukawa Battery

Magnesium-air battery (activated by fresh/salt water) to power small devices on board.

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Gardner Cryogenics

Developer, designer and manufacturer of high-performance tanks and trailers for liquid H2.

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Gas and Heat

Design, construction, supply and installation of cargo systems for gas carriers for shipping liquefied gases.

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Genevos

Clean energy systems integrator specialising in hydrogen and fuel cell applications for the maritime sector.

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Gennal Engineering

Developers of Blue G, a vanadium redox flow battery system with a water-based electrolyte, storage tank, stack cell and regulating pump.

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GILLS Pte

Gas Injected Liquid Lubrication System for vessels.

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Grafmarine Ltd.

Creator and supplier of NanoDeck ’tiles’ which integrate solar panels, batteries and a power management system.

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GT Green Technologies

Developer of AirWing, a patent-pending rigid sail system to reduce fuel consumption.

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GTT

Expert in containment systems with cryogenic membranes to transport and store liquefied gas. Developing LH2 storage and CO2 capture.

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H2 Fuel

Patented sodium borohydride-based technology for the production, storage and release of hydrogen.

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H2 Industries

Solutions for storing, transport and decentralized release of renewable energy using LOHC technology.

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H2Boat

‘Energy Pack’ solution for leisure-vessels comprising a PEM electrolyser, metal hydride storage and a PEMFC.

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H2Site

Membrane reactor technology for on-site production of H2 from different feedstocks.

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H2Storage

Type 4 tanks for hydrogen storage.

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Hanwha

Composite storage tanks for hydrogen.

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Helion

Designer and manufacturer fuel cell stacks and fully-integrated hydrogen systems ranging from a hundred kW to MW+.

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Hexagon Purus

Provider of Type 4 high-pressure cylinders for containers.

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Horizon Fuel Cell Technologies

Lightweight PEM fuel cells at varying degrees of complexity and performance.

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Hydrogenious

Hydrogen storage and transport – based on proprietary and patented Liquid Organic Hydrogen Carrier technology.

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HyFuel

HyFuel will develop, own, and operate a plant for producing hydrogen and hydrogenation of LOHC.

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Hyon

Fast and safe delivery of hydrogen fuels to ships.

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HySeas Energy

Developer of highly resilient, marine grade, clean hydrogen solutions and fuel cell systems.

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Hyundai HTWO

Development of a next-generation hydrogen fuel cell system for various mobility applications.

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IC Technology

Cryogenic containment systems with new membrane technology to lower evaporation rates.

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Ionada

Compact, membrane contactor carbon capture system for carbon emitters under 200K tons per year.

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Kawasaki

Hydrogen storage and transportation solutions.

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Kriesel Electric

Batteries with patented immersion cooling and heating technology to maintain cell temperature.

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Leclanché

Modular and scalable li-ion battery system for marine applications.

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LG Chem

Advanced, innovative and sustainable solutions for our environment and society.

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Lift Ocean

Hydrofoil systems for high-speed boats.

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Linde

Global leader in the production, processing, storage and distribution of hydrogen.

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Logan Energy

Integrated engineering solutions incorporating hydrogen technologies.

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Luxfer Gas Cylinders

Composite and aluminium gas cylinders for a range of applications across industries.

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Magnuss

Each Vertically-variable Ocean Sail System is a rotating, retractable cylinder that harnesses the wind to propel a ship by means of the Magnus Effect.

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MAN Energy Solutions

Large portfolio of technologies for maritime, including NH3 storage and two-stroke NH3 combustion engines.

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Maxeon

Spinoff of SunPower. Maxeon cells feature a unique tin-plated copper foundation that limits breakage and sensitivity to humidity and corrosion.

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Mitsubishi Heavy Industries

Japanese multinational engineering, electrical equipment and electronics corporation.

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MOL

Co-developer of a bow windshield that reduces air drag and fuel consumption by harnessing the ‘Conada effect’.

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Nakashima

Energy saving devices for ships including Air Lubrication Systems.

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Nayam Wings

Novel wind propulsion system for maritime vessels based on a rigid wing sail.

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Nedstack

PEM fuel cells supplier with a strategic focus and unique track record in the high-power / high-use domain.

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Noble Gas Systems

High-pressure, lightweight conformable compressed gas storage and delivery for all compressed gases.

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Norse Power

Norsepower Rotor Sails provide a reliable and easy-to-operate auxiliary wind propulsion system with a proven savings record.

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NPROXX

Composite pressure vessels (Type 4) for hydrogen storage.

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Nuvera

PEM fuel cell systems developer for heavy-duty applications.

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Ocean Glide

Fluidic Air Lubrication, injects air bubbles directly into the boundary layer. Formerly Marine Performance Systems.

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Oceanbird

Rigid sail with a flap for different ship types. The company is a joint venture between Alfa Laval and Wallenius.

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Orcan Energy

Efficiency PACKs to generate electricity from the unused energy produced by combustion engines. Up to 100 kW net electric maximum rated output.

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OXGRIN

Low-temperature NH3 reformer with an absorbent developed in-house and a patented catalyst solution.

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Panasia

Developing an on-board carbon capture and storage system in collaboration with Samsung Heavy Industries.

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pascal technologies

Enables vessels to glide on a cushion of air, significantly reducing energy consumption and increasing comfort

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Pherousa

Technology to crack ammonia to hydrogen of fuel cell quality, based on reactor technology from Helbio S.A.

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Phinergy Marine

Aluminium-air and zinc-air batteries for marine applications.

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Plastic Omnium

Innovative hydrogen solutions for zero-emission electric mobility.

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PowerCell

PEM fuel cells supplier

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Proton Motor

Manufacturer of hydrogen fuel cells and fuel cell hybrid systems for mobility as well as stationary applications.

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RenCat

Commercializing a patent-pending technology to process ammonia to PEMFC-grade hydrogen.

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RIX Industries

RIX hydrogen generator systems enable the integration of advanced fuel reforming and hydrogen purification technologies directly on-board.

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Rolls Royce

The company’s Power Systems business unit is developing mtu engines to operate on methanol.

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Saft

Specialist in advanced technology battery solutions

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Samsung Heavy Industries

Teamed up with Samsung SDI, a global battery maker to jointly develop a battery system.

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Seaborg Technologies

Advanced nuclear (molten salt reactor) technology.

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Seabound

Technology to capture CO2 from the ships’ exhaust using lime (CaO).

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SeaVar

Modular, scalable, direct air capture system for CO2 capture.

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Shift Clean Energy

Unlocking the potential of clean energy through leading-edge energy storage systems.

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sHYp

Electrolyser technology that can use sea water to produce hydrogen.

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Siemens

BlueVault lithium-ion battery modules for the electrification of the seas.

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Silverstream Technologies

Air lubrication system (ALS) that can be fitted to new and existing vessels.

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SkySails

The system con­sists of 3 main com­po­nents: a tow­ing kite with rope, a launch and re­covery system, and a control system for automated operation.

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Smart Green Shipping

Retractable FastRig (Fully Automated Sail Technology) for tankers and dry bulk vessels.

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Sodaflexx

Dry Powder Exhaust Gas cleaning system for the maritime industry based on Solvay’s sodium bicarbonate.

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Solbian

Flexible and lightweight photovoltaic panels.

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Spear

Environmentally-friendly battery solutions for ferries, ships, and water-based vehicles of all sizes.

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Symbio

A JV between Faurecia and Michelin, offering a wide range of fuel cell solutions.

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TECO 2030

Developing and manufacturing green technology to reduce the marine environmental footprint, with AVL.

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Toyota

The Toyota fuel cell system was tested on the Energy Observer, and is now being commercialised.

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Ulmatec

Products that enable the use of surplus heat from exhaust gas, while simultaneously delivering full-spectrum noise attenuation.

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UMOE Advanced Composites

Transport modules for gaseous hydrogen.

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Unitrove

Liquid hydrogen bunkering for vessels.

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Value Maritime

The Filtree System developed for small and medium-sized ships, filters sulphur, ultra-fine particulate matter and CO₂ from the air.

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Voyex

Offer ‘Hydrogen Oil’, part of a technology family that we call ‘Liquid Organic Hydrogen Carriers’ (LOHC).

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Wärtsilä

Power sources and other equipment in the marine and energy markets.

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WATTLAB

Solar energy systems for multiple applications.

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Wavefoil

Retractable bow foils that reduce fuel consumption and ship motions during sailing.

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Weichai Power

Working with Geely to co-develop methanol engines for different applications.

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Win & Wav Enterprise

Motion assisted, self sustaining, built-in battery charger module for vessels. (Prototype stage)

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Wind + Wing Technologies

WingDriveTM technology for passenger vessels.

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Wind Challenger

Automated hard sail made of glass fibre reinforced plastic, developed by MOL.

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Windship Technologies

The Auxiliary Sail Propulsion System (ASPS), uses fixed wing sail technology, whereby two 35-metre high masts installed on the deck of a vessel.

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WinGD

Mono and duel fuel engines capable of running on ammonia and methanol.

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Wisamo

Inflatable, retractable, automated wing sail being developed by Michelin.

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Xalt Energy

Lithium-ion cell, pack and system developer. Freudenberg is the majority shareholder of XALT Energy.

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Yanmar

Fuel cell for marine applications with components from the Toyota Mirai. Expert in high-pressure ship refuelling with hydrogen.

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Z Ships

Technology to convert energy from waves into electricity.

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ZEM

Knowledge driven approach to offering battery solutions to the maritime sector.

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zepp.solutions

Semi-custom hydrogen fuel cell modules for different applications.

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Zero Emission Industries

Productized turnkey hydrogen fuel cell, refuelling and safety systems for sea, air and land.

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Zero Emission Services

Exchangeable battery containers and charging infrastructure for inland shipping.

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Ziero

Hydrogen combustion engines for several applications.

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