Projecting the Reduction of the Levelized Cost of Green Hydrogen via Stack-Level & System-Level Innovation

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:This framework identifies key technical levers for LCOH reduction, offering a systematic approach to prioritize research on stack and BoP innovations.

🏢実務担当者:Corporate teams can use the design framework to evaluate cost-reduction pathways and align R&D investments with industry priorities for green hydrogen competitiveness.

🏛政策担当者:The analysis supports informed policy design by quantifying the impact of different cost reduction strategies, aiding in the allocation of subsidies and R&D funding.

The widespread adoption of green hydrogen as a fuel and chemical feedstock can assist in abating carbon emissions in many hard-to-decarbonize industries, but the current price of green hydrogen is too high for it to be utilized as an alternative fuel and clean chemical feedstock. However, there is an opportunity for green hydrogen to be adopted by lead users if the levelized cost of hydrogen (LCOH) can be reduced by ~$1-4.50 / kg H 2 . Currently, there exist many disjointed recommendations and efforts to reduce the levelized cost of hydrogen (LCOH), including (but not limited to) identifying cheaper sources of electricity, optimizing the balance of plant, and improving the cost and efficiency of electrolyzer stacks. However, a holistic and unified analysis that seeks to understand the impact of different cost reduction strategies relative to one another (and the identification of the best combination of strategies) is lacking. A design framework that elucidates stack and balance of plant (BoP) design decisions that can most effectively lower the cost of green hydrogen production (LCOH) can bring green hydrogen closer to competitiveness with grey hydrogen (and other alternative fuels) and facilitate its adoption by lead users. In this study, we identifyviable pathways for lowering the cost of green hydrogen (LCOH) production through stack and balance of plant technical innovation. This cost reduction analysis is done in three parts. In the first part, we identify the feasible cost reduction potential by improving the efficiency (or lowering the power requirement) for the electrolyzer stack and balance of plant (BoP). In the second part, we identify the feasible cost reduction potential by lowering the capital cost of the stack and BoP. And in the third and final part of the study, we synthesize our findings from the first two cost reduction strategies (power reduction and capital cost reduction) and analyze the trade-offs of different cost reduction pathways. In summary, we present a design framework that bridges the gap between academic literature and industry priorities by highlighting research that should be prioritized to lower the cost of green hydrogen and facilitate its adoption.

• semanticscholar https://doi.org/10.1149/ma2026-01361760mtgabsfirst seen 2026-07-20 05:21:01