Techno-economical evaluation of renewable hydrogen production through concentrated solar energy

Restrepo, Julián C.; Izidoro, Diego Luís; Násner, Albany Milena Lozano; Venturini, Osvaldo José; Lora, Electo Eduardo Silva

doi:10.1016/j.enconman.2022.115372

Cited by 33 publications

(6 citation statements)

References 57 publications

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“…Moreover, since the research for the generation of electrical charges from solar energy (PV cells) and electrocatalysts for water splitting occurs as separate processes, and the required hardware for both, such as PV cells and water electrolysis equipment, is well-established and readily available in the commercial market, the scaling up of PV-EC systems should be relatively straightforward. [62][63][64][65] Utilizing models grounded in steady-state equivalent circuits, Nocera and colleagues posited that, through an appropriate design, the STH efficiency of PV-EC devices could attain 16% using commercially available silicon solar cells and earth-abundant components. 66 More recently, it was demonstrated that the STH efficiency could exceed 30% by integrating multi-junction solar cells with a commercialized proton exchange membrane water electrolysis system under 42 suns.…”

Section: Photovoltaic-electrochemical (Pv-ec) Processmentioning

confidence: 99%

Hydrogen generation from atmospheric water

Guo,

Butson,

Zhang

et al. 2024

J. Mater. Chem. A

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Section: Photovoltaic-electrochemical (Pv-ec) Processmentioning

confidence: 99%

Hydrogen generation from atmospheric water

Guo,

Butson,

Zhang

et al. 2024

J. Mater. Chem. A

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“…▪ The solar field (SF) has an energy efficiency of 60% [17], which means that only 60% of the solar energy reaching the heliostats is directed to the receiver (the remaining 40% are heat and optical losses).…”

Section: Figure 1 Proposed Plants: (I) Wf-soec (Ii) Pv-soecmentioning

confidence: 99%

“…( 15) can be rewritten, inserting the unit exergy cost, , (in kJ/kJ) for each stream, according to Eqs. ( 16) and (17). It represents the amount of exergy required to produce a unit of the respective exergy stream.…”

Section: Exergoeconomic Assessmentmentioning

confidence: 99%

“…In this way, it is considered that the input used in the first process of a plant has an exergy cost equal to the unit. ( 16) (17) When necessary, partition methods are applied, as proposed by [40]: Equality method: the costs are divided among the products according to their exergy content; (ii) Extraction method: the costs are discharged in a single exergy stream.…”

Section: Exergoeconomic Assessmentmentioning

confidence: 99%

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Exergoeconomic Assessment of Green Hydrogen Production Via High Temperature Electrolysis Powered by Solar and Wind Energy

Izidoro

Oliveira

2023

36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 20

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Hydrogen is considered a promising alternative as an energy carrier for the transition to a renewable energy matrix. However, most of the hydrogen is currently produced using fossil fuels, making it essential to develop green hydrogen production routes. Therefore, this study aims to perform an exergoeconomic analysis of the high-temperature electrolysis (HTE) process for hydrogen production using solar and wind energy. To this end, it is proposed novel plant arrangements for solid oxide electrolysis cells (SOEC). To supply the plant's electrical demand, two options are considered: a wind farm (WF) and a photovoltaic system (PV). A solar concentration system is considered for the thermal demand. As another contribution to the area, the analysis is carried out considering the Brazilian scenario, specifically Pecém (Ceará), a coastal district located in the northeast of Brazil. It was selected due to the high availability of solar and wind resources and the existing industrial and port infrastructure. Energy and exergy analyses are performed to identify the components with the highest level of irreversibility. Finally, an exergoeconomic assessment is accomplished to determine the exergy costs of hydrogen production. For the WF-SOEC arrangement, the total exergy efficiency obtained is 26.53%, and the unit exergy cost of hydrogen is 3.89 kJ/kJ. For the PV-SOEC arrangement, the corresponding values are 13.74% and 7.53 kJ/kJ, respectively. Overall, the results demonstrate that HTE route using solar and wind energy can be a viable and sustainable alternative to produce hydrogen from 100% renewable sources and without direct CO2 emissions.

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“…The techno-economic analysis found it feasible to retrofit coal-fired power plants with renewable energy HPSs in most areas of China. Restrepo et al [13] analyzed the feasibility of hydrogen production from concentrating solar energy in Guamare, Brazil. The results showed that the maximum annual average solar energy conversion efficiency to hydrogen for the two designed systems was 31.8% and 10.2%.…”

Section: Introductionmentioning

confidence: 99%

Parametric Study and Optimization of Hydrogen Production Systems Based on Solar/Wind Hybrid Renewable Energies: A Case Study in Kuqa, China

Yang,

Yan,

Cai

et al. 2024

Sustainability

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Based on the concept of sustainable development, to promote the development and application of renewable energy and enhance the capacity of renewable energy consumption, this paper studies the design and optimization of renewable energy hydrogen production systems. For this paper, six different scenarios for grid-connected and off-grid renewable energy hydrogen production systems were designed and analyzed economically and technically, and the optimal grid-connected and off-grid systems were selected. Subsequently, the optimal system solution was optimized by analyzing the impact of the load data and component capacity on the grid dependency of the grid-connected hydrogen production system and the excess power rate of the off-grid hydrogen production system. Based on the simulation results, the most matched load data and component capacity of different systems after optimization were determined. The grid-supplied power of the optimized grid-connected hydrogen production system decreased by 3347 kWh, and the excess power rate of the off-grid hydrogen production system decreased from 38.6% to 10.3%, resulting in a significant improvement in the technical and economic performance of the system.

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Techno-economical evaluation of renewable hydrogen production through concentrated solar energy

Cited by 33 publications

References 57 publications

Hydrogen generation from atmospheric water

Hydrogen generation from atmospheric water

Exergoeconomic Assessment of Green Hydrogen Production Via High Temperature Electrolysis Powered by Solar and Wind Energy

Parametric Study and Optimization of Hydrogen Production Systems Based on Solar/Wind Hybrid Renewable Energies: A Case Study in Kuqa, China

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