The Hydrogen Innovation, Future Infrastructure & Vessel Evaluation & Demonstration (HI-FIVED) project delivers a combined demonstration of Unitrove's shoreside mobile hydrogen bunkering station and ACUA Oceans zero-emission hydrogen-powered Small Waterplane Twin Hull (SWATH) vessel. For our CMDC3 demonstration we will demonstrate the benefits of green short-sea shipping compared to alternatives such as the Sustainable Aviation Test Evaluation (SATE) project. SATE is developing an aerial drone with a 100kg payload between the Scottish mainland and islands, while HI-FIVED will deliver testing and demonstrations in Plymouth . The project will demonstrate our zero-emission technology in a variety of sea-states and weather conditions as well as the increased endurance, stability and reliability of the SWATH design. Our Consortium includes technical, compliance, delivery, fuel producers, ports and harbours, and commercial partners.The HI-FIVED project roadmap will build, test, certify and demonstrate hydrogen infrastructure and the on-water vessel capabilities in a full 4-week at sea demonstration to TRL7/8. The application progresses AO's hydrogen-powered vessel, which was developed to Factory Acceptance Test (FAT-TRL5) under CMDC1 Strand 2, where it received Lloyd's Register Approval in Principle on the internal electrical, hydrogen and command systems. The project will use the economic and environmental reports developed by Nash Maritime and Southampton University Marine and Maritime Institute (SMMI) to explore secondary investment opportunities to further develop the opportunities of green shipping corridors. Through CMDC1, AO also identified challenges in the global hydrogen-electric supply chain. Working with technology and engineering partners Zero Emission Marine Technology (ZEMTech) and Trident Marine Electrical (TME) and subcontractors Luxfer (tanks) and Air Products/ BOC (fuels) the project will assess and support the extended UK hydrogen supply chain. End user engagement (**18 Letters of Support** secured from commercial end-users and local government and enterprise agencies, workshops, demonstrations and events) will deliver local business consultation and develop new use cases and commercial opportunities. The HI-FIVED project showcase further seeks to accelerate net-zero investment opportunities and to create new "green" maritime jobs. This combined demonstration project uniquely addresses multiple CMDC3 priority innovation challenges of; 1. Development of future commercial green shipping corridors 2. Demonstration of safe bunkering and on-board gaseous storage of hydrogen 3. Assessment of the UK green hydrogen supply chain 4. 12 weeks of on-water vessel test, trials and demonstrations in Plymouth Total eligible costs for the 24-month project are **£5,371,277** (£3,837,335 grant, £1,533,942 match-funding from partners existing reserves).

The Little Ships of Dunkirk were about 850 private boats that sailed from Ramsgate, England, to Dunkirk, France, between May 26 and June 4, 1940, as part of Operation Dynamo, helping to rescue more than 336,000 British and French soldiers who were trapped on the beaches at Dunkirk during the Second World War. This epitomised the importance of small craft to the marine coastal industry in the UK as it is surrounded by waters. In 2019 there are 5911 UK registered fishing vessels and 80% of the UK fleet is made up of vessels of under 10 metres. Vessels over 24 metres account for just 4%. Around 12,000 fishers work in the UK registered vessels and 43% vessels are in England and around 42% from Scottish vessels. Waterborne transport accounts for 13% of GHG emissions in the EU and 9.8% rise according to the 4th IMO GHG study. Emissions from UK international shipping bunkers were estimated to be 6.1 MtCO2e in 2020, a decrease of 17.8% from the 2019 level. This is the second lowest annual figure since these estimates began in 1990 and was due to the large fall in shipping traffic that occurred following the start of the COVID-19 pandemic. In 2020, 24% of net GHG emissions are from the transport sector which accounted for 97.2MtCO₂. There are several alternative fuels to enable the decarbonisation of UK shipping, namely hydrogen, ammonia, methanol, electric and possibly others. Hydrogen is the nearest sustainable fuel in the UK with vast offshore and coastal land providing energy from wind, solar and waves. To decarbonise the operation of waterborne small crafts, the following had to be addressed. 1. The safety of storage of hydrogen and ammonia onboard vessels 2. The continuous availability of zero carbon fuel for bunkering (LH₂) or (LNH₃) 3. The willingness of vessel owner to convert to zero-carbon fuels This study will lead to the development of a Zero-Emission Multi-Fuel Station (ZEMFS) that uses a single source of liquid hydrogen (LH₂), to provide zero-emission fuelling of Liquid hydrogen (LH₂), compressed gaseous hydrogen (CGH₂) and electric charging options, at the port or harbour. Unitrove proposed to install the facility at all UK ports and harbours and hopefully to be operational by March 2025\. The added value is that ZEMFS can fuel HGVs that serve the ports/harbour; further reducing the impact of GHG.

The project will conduct a high-quality feasibility study that, informing a business case for infrastructure-investment in Zero-Emission(ZE) Fuels/charging-infrastructure at the Port of Grimsby, at the same time as investment in operational programmes of work that will establish Grimsby as a national Clean Maritime Demonstration Hub (CMDH). Commercial ethos Harnessing the 'industry-pull' of the offshore wind industry as a 'springboard' for the adoption of clean maritime technologies (DfT,Innovation Roadmap for Offshore Wind,2021), the project-team will undertake detailed feasibility to identify the infrastructure requirements to support clean maritime operations from the port. This will include ZE-Fuel production, compression, storage, fuelling, metering and distribution infrastructure, as well as onshore and offshore electrical-charging capability. The project will include a detailed demand-analysis for ZE-Fuels/charging infrastructure, to which design concepts will then be tailored, with escalation plans for the gradual scaling of production in line with rising demand for alternative maritime fuels. ZE-fuel / power offtakers in the offshore renewables industry are anticipated early-adopters. Meanwhile, other maritime operators across the broader Humber and other UK East-Coast catchments will be canvassed and included in the demand-analysis to maximise scalability. Socio-economic 'value added' Impact As well as providing a business case for ZE-fuel and maritime electrical-charging systems on commercial basis, the feasibility study will also identify the operating model for a 'wrap-around' demonstration, training and acceleration eco-system, providing a unique facility for open-access demonstration and certification of clean maritime technology. This will include: * Open access ZE-fuelling, infrastructure and analysis facilities for ZE-fuel system demonstration, validation and certification * The development and delivery of dedicated open-access training in the use of ZE-fuelling systems by port-technicians and vessel-crews; * A joint-industry working-group, including regulators and class societies to support the rapid acceleration, demonstration and certification of very-high TRL clean-maritime innovation * Access to specialist investment community with an investment review group made up of angel, VC, grant and loan investment bodies The feasibility will lay the blueprint for this unique national demonstration asset, harnessing the potential of the offshore wind industry to act as a 'springboard' for clean-maritime innovation in the UK. The result will be 'investment-ready' port-fuelling infrastructure and world-leading demonstration and certification support capability. This scale of demonstration will have the critical mass of industrial partners, and the long-term strategic approach required to bring together stakeholders from across the public and private-sector to work in partnership to break the 'chicken and egg' impasse which stymies the rapid expedition of clean-maritime transition.