IPOSH project completed

This study aimed to optimise the design of offshore hydrogen production systems, reducing the levelised cost of hydrogen (LCOH) by 10 - 20% and achieved this goal. The project was made possible through the support of the Dutch TKI Offshore Energy Programme.

Innovative approach to electrolyser design

Traditionally, electrolyser stacks are designed first, with the balance of stack (BoS) and balance of plant (BoP) components selected afterward to accommodate the stacks. However, the IPOSH project considered all components equally important from the outset. This integrated approach ensured that cost savings were realised through simultaneous optimisation rather than retrofitting elements to pre-designed stacks. By designing the overall system, the project aimed to achieve a higher level of efficiency and cost-effectiveness.

Lifecycle-based methodology for long-term efficiency

The IPOSH project has adopted a lifecycle-based methodology, evaluating critical aspects such as plant design, transport, installation, maintenance, operation, and decommissioning. Through a model-based analysis, the project assessed stack replacement rates under different operational scenarios and module sizes to enhance efficiency and longevity.

A key focus of the project was to establish general requirements for offshore electrolysis, addressing factors such as system footprint, maintenance needs, and environmental impact. By implementing a system engineering approach, the partners ensured that the electrolyser system was holistically optimised rather than constrained by existing design limitations. This will enable the identification of the most cost-effective and scalable configurations for future offshore hydrogen production.

By leveraging the combined expertise of H2sea, TNO, and Bosch, the findings of the IPOSH project will provide valuable guidance for future developments, strengthening the role of offshore hydrogen in achieving a sustainable, low-carbon energy system.

Read the article online at: https://www.globalhydrogenreview.com/hydrogen/16052025/iposh-project-completed/