ZESTAs Launches Global Liquid Hydrogen Alliance to Accelerate Zero-Emission Shipping

The Zero Emissions Ship Technology Association (ZESTAs) has launched the Global Liquid Hydrogen Alliance, a significant step towards accelerating the adoption of liquid hydrogen (LH2) as a primary fuel for zero-emission shipping. This international platform aims to address the fragmentation in current hydrogen projects and drive the commercial viability of LH2 for maritime applications.

Key Technical Specifications and Facts

The Global Liquid Hydrogen Alliance (Alliance) is focused exclusively on pure green hydrogen, specifically in its liquid form (LH2). This differentiates it from other hydrogen initiatives that may consider derivatives or blended fuels. The Alliance emphasizes the following key aspects:

• LH2 Market Growth: The LH2 market is currently valued at $9 billion and is projected to reach $19 billion by 2032, exceeding $54 billion from 2037 onward. This represents a substantial growth trajectory, indicating increasing interest and investment in LH2.
• Liquefaction Capacity Expansion: Global LH2 liquefaction capacity is expected to more than quadruple between now and 2037. This expansion is crucial for meeting the growing demand for LH2 as a maritime fuel.
• Zero-Emission Fuel: LH2 is highlighted as a truly zero-emission fuel, produced, stored, and transported using renewable electricity. This eliminates reliance on fossil fuels in the production process, contributing to decarbonization efforts.
• Suitability for Long-Range Shipping: LH2 is particularly well-suited for long-range, high-energy-density maritime applications. This makes it a viable alternative to conventional fuels for vessels undertaking long voyages.
• Advantages over Alternatives: LH2 is presented as having advantages over other alternative fuels like ammonia, methanol, and crop-based biofuels, particularly in terms of safety, toxicity, traceability, and land-use implications.

Technical Analysis: Innovation and Challenges

The focus on LH2 represents a deliberate choice to leverage a fuel with specific advantages for the maritime sector. The innovation lies not necessarily in the liquefaction technology itself, which is relatively mature, but in its application to shipping and the creation of a robust supply chain.

Key technical challenges associated with LH2 include:

• Cryogenic Storage: LH2 must be stored at extremely low temperatures (around -253°C) to remain in liquid form. This requires specialized cryogenic storage tanks and handling equipment, adding to the cost and complexity of LH2 infrastructure. Boil-off is also a concern.
• Energy Density: While LH2 has a higher energy density by weight than compressed hydrogen gas, its volumetric energy density is lower than that of conventional fuels. This means that LH2 tanks may require more space on board vessels.
• Infrastructure Development: A comprehensive LH2 infrastructure is needed, including liquefaction plants, storage facilities, transportation networks, and bunkering facilities at ports. This requires significant investment and coordination.
• Safety Regulations: Stringent safety regulations are essential for handling LH2, given its cryogenic nature and flammability. These regulations must be developed and implemented to ensure safe operations.

Despite these challenges, the Alliance believes that the advantages of LH2 outweigh the drawbacks, particularly for long-range shipping where other zero-emission fuels face limitations.

Industry and Regulatory Context

The launch of the Global Liquid Hydrogen Alliance comes at a crucial time for the maritime industry, as it grapples with the need to decarbonize in line with the IMO’s Net-Zero Framework. The Alliance aims to capitalize on the growing momentum towards zero-emission shipping, driven by regulatory pressures and increasing investor interest.

The IMO’s commitment to a globally binding carbon price for shipping signals a clear regulatory direction, incentivizing the adoption of alternative fuels like LH2. Furthermore, the substantial investments being made in hydrogen projects, particularly in Europe, demonstrate the growing recognition of hydrogen’s potential as a clean energy carrier.

However, the article highlights that these projects are often fragmented and lack coordination, hindering their progress. The Alliance seeks to address this gap by providing a platform for collaboration and alignment across the LH2 value chain.

Why This Matters for the Hydrogen Shipping Sector

The Global Liquid Hydrogen Alliance plays a vital role in accelerating the adoption of LH2 as a viable fuel for the hydrogen shipping sector. By focusing exclusively on pure green hydrogen and LH2, the Alliance provides a clear and focused approach to decarbonization.

The Alliance’s four priorities – building a global ground truth for LH2, positioning LH2 as a primary energy carrier, accelerating market creation, and turning policy momentum into deployment – are all critical for realizing the potential of LH2 in maritime applications.

Specifically, the Alliance’s efforts to:

• Establish a neutral evidence base: This will provide policymakers, investors, and shipowners with reliable information on the technology, safety, and economics of LH2, facilitating informed decision-making.
• Promote LH2 as a primary fuel: This will help to raise awareness of the benefits of LH2 and encourage its adoption as a mainstream fuel option.
• Support market creation: This will facilitate the development of LH2 infrastructure and supply chains, making it easier for shipowners to access LH2.
• Drive policy alignment: This will ensure that regulations and policies are in place to support the safe and efficient use of LH2 in shipping.

By addressing these key areas, the Alliance can help to overcome the barriers to LH2 adoption and accelerate the transition to zero-emission shipping. This is crucial for meeting the industry’s decarbonization targets and ensuring a sustainable future for maritime transport.

Challenges and Open Questions

While the Global Liquid Hydrogen Alliance represents a positive step forward, several challenges and open questions remain:

• Cost Competitiveness: LH2 is currently more expensive than conventional fuels. Reducing the cost of LH2 production, storage, and transportation is essential for making it competitive.
• Scalability: Scaling up LH2 production and infrastructure to meet the needs of the global shipping industry will require significant investment and technological advancements.
• Public Perception: Addressing concerns about the safety and handling of LH2 is crucial for gaining public acceptance and support.
• International Collaboration: Effective collaboration between governments, industry stakeholders, and research institutions is essential for accelerating the development and deployment of LH2 technologies.

Addressing these challenges and answering these open questions will be critical for realizing the full potential of LH2 as a sustainable fuel for the maritime sector.

Sources

• hellenicshippingnews.com — https://www.hellenicshippingnews.com/zestas-launches-global-liquid-hydrogen-alliance-to-accelerate-zero-emission-shipping/