Development of a reliable simulation framework for techno-economic analyses on green hydrogen production from wind farms using alkaline electrolyzers

Superchi, Francesco; Papi, Francesco; Mannelli, Andrea; Balduzzi, Francesco; Bianchini, Alessandro; Ferro, Francesco Maria

doi:10.1016/j.renene.2023.03.077

Cited by 47 publications

(6 citation statements)

References 32 publications

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“…These storage solutions find applications across diverse sectors, encompassing power generation, industrial processes, building systems, and transportation avenues [60]. Some new research lines and areas of focus include thermal energy storage via phase change materials (PCMs) [61], compressed-air [62], chemical materials, etc., in solar [63] and wind [64] energy systems that can yield great contributions.…”

Section: Energy Storage Systemsmentioning

confidence: 99%

Review of Hot Topics in the Sustainable Development of Energy, Water, and Environment Systems Conference in 2022

Chu,

Vicidomini,

Calise

et al. 2023

Energies

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The current applications in the energy sector are based largely on fossil fuels which release greenhouse gas emissions to the atmosphere. To face the issue of global warming, the energy sector has to transfer to and develop sustainable energy solutions that do not release carbon emissions. This is one of the primary motivators for the SDEWES conference as well as for this review, and previous ones, examining the most recent works based on sustainable and green energy production in such fields. The 17th Conference on the Sustainable Development of Energy, Water, and Environment Systems (SDEWES) was held on 6–10 November 2022 in Paphos, Cyprus. The SDEWES conference aims at solving complex and ongoing concerns that approach a long-term perspective and supporting innovative solutions and continuous monitoring and evaluation. This review paper aims at collecting the main presented papers focused on the following hot topics: low-carbon technologies based on renewable and clean-energy systems, including mainly biomass, solar, and wind energy applications; energy storage systems; hydrogen-based systems; energy-saving strategies in buildings; and the adoption of smart management strategies using renewable energy systems. These topics are investigated in order to propose solutions to address the issues of climate change, water scarcity, and energy saving. From the analyzed works, we note that some key issues for sustainable development remain to be further addressed: such as novel and advanced energy storage systems, green hydrogen production, novel low-temperature district heating and cooling networks, novel solar technologies for the simultaneous production of power and high temperature heat, solar desalination for hydrogen production systems, and agrivoltaic systems for the production of power and food.

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Section: Energy Storage Systemsmentioning

confidence: 99%

Review of Hot Topics in the Sustainable Development of Energy, Water, and Environment Systems Conference in 2022

Chu,

Vicidomini,

Calise

et al. 2023

Energies

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“…In this case, the generator size is kept at 5 MW, and the excess power produced is used to charge the battery. The li-ion battery storage model applied in this work is the same used and described in [16], and is characterized by a round-trip efficiency around 80%. The required capacity of the battery was estimated to 90 MWh in order to achieve the target self-consumption in feeding a constant load of 1 MW.…”

Section: Standalone Systemmentioning

confidence: 99%

Techno-economic analysis of I-CAES systems to increase dispatchability of wind power

Cioni,

Papini,

Superchi

et al. 2023

J. Phys.: Conf. Ser.

Self Cite

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The variability of energy production from renewable sources remains the main issue hampering their larger penetration in current energy grids. While batteries have been proven to work well in many applications, their cost and environmental footprint are opening room for alternative systems. In this study, the innovative isothermal compressed air energy storage (I-CAES) system proposed by Sadaat et al. in 2014 is analyzed. In this system layout, a wind turbine is coupled with a CAES system through a hydraulic circuit including a liquid piston. The original work theorized the system and focused only on a preliminary verification under an energy perspective, using data referring to very short time series. In the present study, a long-term techno-economic analysis is performed to provide a more representative insight into the real feasibility of the proposed plant configuration. The analysis is carried out using yearly wind speed data and a 1-minute average approach, so as to correctly track the energy fluxes. A parametric analysis of the system, varying the size of the storage vessel and generator is performed to identify the optimal configuration. Finally, the overall performance is compared with that of a traditional standalone turbine. The effect of fluctuations in the energy price during the day is considered, as well as the impact of possible future scenarios, where traditional systems are penalized due to significant oscillations in power production. Results show that, despite the high compression and expansion efficiencies achieved through the liquid piston, the complexity of the system causes a significant reduction of total energy production affecting the economic performance, although interesting prospects can arise whenever constant-load off-grid users are about to be fed.

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“…The CAPEX includes the costs associated with the electrolysis equipment, construction expenses, and installation costs, with the majority of this budget allocated to the electrolysis equipment being 65.8%. On the contrary, the OPEX encompasses labor costs, component replacement expenses, electricity costs, and maintenance costs [58][59][60][61][62]. Among the factors included in the OPEX, labor costs depend on the number of permanent employees according to the operating hours of the hydrogen production facility, ranging from a minimum of USD 42,890 to a maximum of USD 171,560.…”

Section: Economic Evaluation and Analysismentioning

confidence: 99%

Design and Optimization of an Alkaline Electrolysis System for Small-Scale Hydropower Integration

Song,

Kim,

Yang

2023

Energies

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Alkaline electrolysis systems are currently considered to be suitable for large-scale hydrogen production. Previous research has primarily focused on integrating renewable energy sources such as solar and wind into water electrolysis systems. However, intermittent issues stemming from the sporadic nature of renewable energy sources have led to the introduction of energy storage systems (ESSs) to address these intermittent challenges. Extensive research has been conducted on the efficiency and operational aspects of these systems. In contrast to other renewable energy sources, hydropower offers the advantages of stable output and high utilization, making it a promising solution for overcoming intermittent issues. In this study, we propose the design of an optimized alkaline electrolysis system tailored for small-scale hydropower generation. This approach allowed us to confirm the efficiency of a small-scale hydropower-based hydrogen production facility and the analysis of hydrogen production costs under diverse scenarios. Notably, the optimal selling price per kilogram of hydrogen was determined to be USD 15.6 when the operational time exceeded 20 h, albeit indicating a challenging market supply. Under the consideration of various scenarios and government subsidies, this study revealed that a USD 10/kgH2 subsidy or 24 h of continuous operation achieved break-even points in the sixth and eighth years, respectively. Ultimately, the findings underscore the necessity for essential measures, including government backing and technological advancements in small-scale hydropower facilities, to enhance the economic viability of the green hydrogen market in South Korea.

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Development of a reliable simulation framework for techno-economic analyses on green hydrogen production from wind farms using alkaline electrolyzers

Cited by 47 publications

References 32 publications

Review of Hot Topics in the Sustainable Development of Energy, Water, and Environment Systems Conference in 2022

Review of Hot Topics in the Sustainable Development of Energy, Water, and Environment Systems Conference in 2022

Techno-economic analysis of I-CAES systems to increase dispatchability of wind power

Design and Optimization of an Alkaline Electrolysis System for Small-Scale Hydropower Integration

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