Cover photo for Zero Emission Solutions for Ships

Zero Emission Solutions for Ships

This is a TOOL feature list that provides an overview of a specific focus area. Find out more about feature lists here.

Global overview of zero emission ship technologies & projects for the maritime industries. The actors include ship technology providers, ship owners, maritime service providers, institutions, and associations that pioneer specific solutions & projects fueling the decarbonization of maritime industries.

This featured list is regularly updated by the TOOL team. We would like to acknowledge our resource partners Cleantech Matters, Furstenberg Maritime Advisory and ZESTAS as key sources for solution providers. Note that the actors & solutions are not vetted by TOOL, this feature is simply a broad overview.

NOTE: This list excludes biofuels, methanol, and ethanol, as well as petroleum based solutions as blue/grey hydrogen - as it focuses on well-to-wake zero-emission fuels.


These are companies pioneering clean ammonia for the use of ammonia as a maritime fuel.

Solution Providers: 

Ammonigy GmbH: make large engines CO2-free by combining the benefits of ammonia & hydrogen.

Arranged has technology that enables the production of green ammonia through hydrogen and nitrogen storage.

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

Unitrove: Provides zero-emission bunkering infrastructure, technologies, and engineering consultancy services in support of the global ambition to achieve net-zero GHG emissions by 2050.

Greenfield Nitrogen, LLC is developing a network of green hydrogen and ammonia facilities that are strategically positioned in the Midwest to serve the emerging renewable energy markets.

Jupiter Ionics uses electrochemical process to produce ammonia by reducing nitrogen extracted from the air and combining it with hydrogen extracted from water, with power provided by renewable electricity.

Starfire Energy develops Modular Systems to Produce Carbon-Free Ammonia.

Horisont Energi is a Norwegian, independent energy company with the mind and heart of a start-up. The company supports the Paris Agreement and its ultimate ambitions, and will be part of a carbon neutral future.


AmmPower aims to Produce Economical, Carbon Free & Scalable Ammonia. AmmPower is a Canadian junior technology project development and green energy company aiming to advance clean, alternative solutions as part of the movement towards ESG-compliant industrial change.

AustriaEnergy develops renewable electrical energy, storable and distributable. The company has entered a new phase of producing green ammonia in Chile.

Proton Ventures delivers innovative green engineering and turnkey solutions for world-scale storage terminals, ammonia production units and other process applications.

Yara is a leading global ammonia producer. Yara has recently established the Yara Clean Ammonia unit working towards making carbon-free food production to capture growth opportunities in emission-free fuel for shipping and power. 

Fuel Cell Technologies

These are companies providing energy conversion based on fuel cells. The fuel cells sources include methanol fuel cells, molten carbonate fuel cells, solid oxide fuel cells , proton membrane fuel cells.

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

Amogy: Integrated liquid ammonia (NH3) solution for transportation including storage, cracker and hydrogen (H2)-fuel cell.

Ballard Power Systems: PEM fuel cell products manufacturer for markets such as heavy-duty motive, portable power and material handling

Bloom Energy: Manufacturer of solid oxide fuel cell systems

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

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

Elcogen: Offers solid oxide cell

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

GenCell Energy: GenCell Energy is a leading provider of innovative ammonia & hydrogen fuel cell energy solutions.

Genevos: Clean energy systems integrator specializing in hydrogen and fuel cell applications for the maritime sector

HySeas Energy: Developer of highly resilient, marine grade, clean hydrogen solutions and fuel cell systems

Hyundai HTWO: Development of a next-generation hydrogen fuel cell system for various mobility applications

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

PowerCell: PEM fuel cells supplier

PowerCell Sweden AB develops and supplies fuel cells, fuel cell systems and services

Proton Motor Fuel Cell offers fuel cell systems, uninterruptible power supply systems and solar battery storage systems.

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

zepp.solutions: Semi-custom hydrogen fuel cell modules for different applications.

Zero Emission Industries: Productized turnkey hydrogen fuel cell, refuelling and safety systems for sea, air and land.

TECO 2030 is developing hydrogen fuel cells that enable ships and other heavy-duty applications to become emissions-free

Wave Technologies - Hydrofoil & Tidal

Tidal energy is power produced by the surge of ocean waters during the rise and fall of tides.

BAR Technologies: BAR Technologies has developed and patented FOSS (Foil Optimisation and Stability System). It combines the latest in active hydrofoil technology with advanced hull hydrodynamic optimisation.

Bluefins: Bluefins is designing “zero fuel” auxiliary propulsion systems based on a wave energy converting technology inspired by whale tail fins, and developed with leading French research organization Ifremer.

Boundary Layer Technologies: Building high-speed container ships using hydrofoil technology.

Flying Fish: Working on a concept design for a new hydrofoil solar boat class

Flying Foil: Hydrofoil technology that allows for a reduction in energy usage for high-speed vessels.

Lift Ocean: Hydrofoil systems for high-speed boats.

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

WITT Energy: WITT Energy has developed a unique device that captures energy from all six degrees of motion.

Z Ships: Technology to convert energy from waves into electricity.

Solar Technologies

Eco Marine Power: Offer eco-friendly hybrid marine power, efficiency and propulsion solutions.

WATTLAB: Solar energy systems for multiple applications.

BLUE TECHNOLOGY develop solutions that eliminate many of today's challenges and help the maritime industry on to a truly sustainable path. Blue Technology designs photovoltaic panels which will generate energy for our batteries.

Other Zero Emission Shipping Technologies:

Companies working on other energy storage solutions rather than hydrogen or batteries

  • Calix: Developing RECAST, technology based on limestone, to capture on-board carbon emissions

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

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

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

  • Daphne Technology: Green converter to reduce emissions slip of NOx, N2O, SOx, methane (CH4) and ammonia (NH3).

  • Demaco: Cryogenic piping and bunkering systems for maritime.

  • Fraunhofer IMM: Catalytic converter to convert residual ammonia and hydrogen into nitrogen and water.

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

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

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

  • Yanmar: High-Azane Fuel Solutions: Providing solutions for small-scale ammonia bunkering; building a green ammonia value chain in Norway.BayoTech: Trailer-to-ship high pressure gaseous hydrogen delivery.

Other Zero Emission Shipping Related Lists:

We also have mapped the Zero Emission Shipping ecosystem and ZEM Solutions for four vessel categories. Check out the rest of Zero Emission Shipping actors and technologies below! 

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