This manual presents the updated version of the LCOH calculator for 2025, developed as a practical tool for assessing the levelized cost of green hydrogen production. The calculator enables easy modeling of different scenarios, taking into account parameters such as electricity price, investment and operating costs, as well as efficiency factors. The document is intended for researchers, investors, and decision-makers who want to gain a better understanding of the economic aspects of hydrogen projects and compare different technology development options.

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