U.S. Wind to Hydrogen Modeling, Analysis, Testing, and Collaboration

. Accomplishment: NREL-TNO OSW-H2 Key Insights Electrolyzer costs in US are more aggressive due to Hydrogen Earthshot • Offshore wind costs in Netherlands lower due to more mature supply chain including turbine manufacturing and installation vessels • Jones Act will require purpose built ships registered in US - US supply chain is still under-developed, but ramping up Case study takeaways: - - The in-turbine case has the most competitive CAPEX, but also biggest uncertainties around OPEX and design • Capital cost assessment completed, but not available publicly yet • A lot of similarities in US-NL assessments, differences from supply chain and R&D cost reduction expectations Central offshore electrolysis may benefit from cost of export pipelines vs electrical infrastructure, but platform costs are very significant and OPEX uncertain Onshore electrolysis benefits from flexibility of grid connection, but less hydrogen storage and pipeline cost flexibility NREL TNO for life Transforming ENERGY innovation NREL 17

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