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Considering the abundance of renewable energy potential in Turkey, green hydrogen derived from renewable sources holds great promise as a fuel. This paper presents a model for obtaining green hydrogen from medium-temperature geothermal sources. In this model, the Zilan location in the Van province of Turkey was identified as a suitable site for electricity and hydrogen production from low or medium-temperature geothermal sources due to its significant geothermal and water resource potential. In this regard, the installed capacity of the Organic Rankine Cycle (ORC) geothermal power plant is determined by using Monte Carlo Simulation based on the characteristics of the geothermal well at this location, and subsequently, the hydrogen production performance has been evaluated by analyzing the water of Lake Van. According to the analysis results, Lake Van was found to be efficient for hydrogen production. Hydrogen production from Lake Van water was subsequently simulated using the electrolysis method with this ORC geothermal power plant. According to the findings of this model, the hourly hydrogen production potential at this location using a 1.4 MW ORC plant, based on 2022 data, was estimated to be 18.6 kg, which is projected to increase to 28 kg based on 2050 estimated data. In addition, the techno-economic analysis of this compact green hydrogen production process was conducted in the study. The production cost of 1 kg of hydrogen was calculated to be €4.91 in 2022, while it is expected to be €1.21 in 2050. These results indicate that ORC technology will become competitive in hydrogen production in the upcoming years. • Determining the installed capacity of an ORC plant using Monte Carlo simulation. • Producing green hydrogen through an ORC power plant. • Analysis of the hydrogen production potential of the relevant water source. • Selection of the suitable electrolysis unit. • Hourly hydrogen production capacity of compact facility. [ABSTRACT FROM AUTHOR]

Hydrogen is gaining attention as a transportation fuel due to its potential for long-term and sustainable energy supply, as well as its capacity to address security and environmental concerns. However, the widespread adoption of hydrogen fuel-cell vehicles requires overcoming certain barriers, including the vehicle-infrastructure system and zero-emission hydrogen production. Establishing a hydrogen fueling infrastructure that is compatible with hydrogen vehicles and developing sustainable hydrogen production technologies are of paramount importance. Additionally, factors such as the cost of green hydrogen production and its economic viability must be taken into account. Therefore, the development and dissemination of new technologies for carbon-free or low-carbon hydrogen production are crucial for the hydrogen production and hydrogen fuel sectors. In this study, a comprehensive model is presented for the installation of a green hydrogen production facility. The model focuses on utilizing Offshore Wind Technology (OWF) for hydrogen production through water electrolysis, as well as the storage and transportation of the produced hydrogen for use in hydrogen fuel stations. OWF technology is specifically addressed in this study to overcome its limited approach in the green hydrogen industry and address these limitations. The suggested model for green hydrogen production has been discussed, outlining the stages of hydrogen production, storage, and transportation, with its application in the Edirne-Enez location. Furthermore, a detailed techno-economic analysis of the modeled green hydrogen production facility is conducted. According to this analysis, the cost of producing green hydrogen through OWF is projected to be 6.26 EUR/kg in 2023, decreasing significantly to 1.13 EUR/kg by 2050. When accounting for fuel transportation and fuel station expenses, the overall hydrogen cost is estimated to be 10.7 EUR/kg in 2023 and 2.42 EUR/kg in 2050. Given the current state of hydrogen vehicle technology, the cost per kilometer is projected to be 0.0927 EUR/km in the year 2023 and is expected to decrease to 0.021 EUR/km by the year 2050. • Green energy. • Green hdyrogen. • Hydrogen Vehicle Technology. • Cost-effective green hydrogen production. [ABSTRACT FROM AUTHOR]