Economics of converting renewable power to hydrogen

Glenk, Gunther; Reichelstein, Stefan

doi:10.1038/s41560-019-0326-1

Cited by 836 publications

(447 citation statements)

References 36 publications

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“…Electrolysis previously reflected as an expensive hydrogen production technology 38,39 and is increasingly being considered to be cost competitive. 40 The latter study suggests that the hydrogen produced using wind power in Germany and Texas is already cost competitive for small-and medium-scale users of the gas. There exists an analogy (with offshore renewables) when the studies remark that renewable hydrogen will become competitive with current large-scale industrial supplies from fossil fuels in the next decade or so.…”

Section: Offshore Electrolysismentioning

confidence: 98%

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Synergies in offshore wind and oil industry for carbon capture and utilization

Gondal

Masood

2019

Greenhouse Gases

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The concentration of greenhouse gases (GHG)s and specifically CO2 continue to rise in the global environment including the atmosphere and the oceans. Oil and gas exploration in oceans and the increased probability of CO2 being destined for ocean storage have made the oceans much vulnerable to acidification and hence detrimental to the entire marine ecosystem. Offshore wind energy, along with other renewables, have the potential to lower the rate of CO2 absorption in the global eco system. Distant offshore wind farms are faced with the problem of dispatch of surplus wind power. Power‐to‐gas technology can be used to convert the offshore wind power into synthetic natural gas that can be transported through the existing network of offshore gas pipelines. The novel method has the capability to significantly reduce GHG emissions, solve the power dispatch problems of offshore wind farms, as well as reduce the oceanic environmental degradation. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Offshore Electrolysismentioning

confidence: 98%

“…Electrolysis previously reflected as an expensive hydrogen production technology and is increasingly being considered to be cost competitive . The latter study suggests that the hydrogen produced using wind power in Germany and Texas is already cost competitive for small‐ and medium‐scale users of the gas.…”

Section: Economic Aspects and Feasibilitymentioning

confidence: 99%

Synergies in offshore wind and oil industry for carbon capture and utilization

Gondal

Masood

2019

Greenhouse Gases

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“…The price of the green electrical power (generated from renewable and sustainable energy) applied in the electrolysis is important to evaluate the green hydrogen cost. Furthermore, the cost of electrolysis, the technique which hydrogen is produced from water, should be considered . In recent years, the cost of renewable energy has significantly reduced, and it has projected to diminish even more in the near future.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

2020

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Summary Solar energy is going to play a crucial role in the future energy scenario of the world that conducts interests to solar‐to‐hydrogen as a means of achieving a clean energy carrier. Hydrogen is a sustainable energy carrier, capable of substituting fossil fuels and decreasing carbon dioxide (CO2) emission to save the world from global warming. Hydrogen production from ubiquitous sustainable solar energy and an abundantly available water is an environmentally friendly solution for globally increasing energy demands and ensures long‐term energy security. Among various solar hydrogen production routes, this study concentrates on solar thermolysis, solar thermal hydrogen via electrolysis, thermochemical water splitting, fossil fuels decarbonization, and photovoltaic‐based hydrogen production with special focus on the concentrated photovoltaic (CPV) system. Energy management and thermodynamic analysis of CPV‐based hydrogen production as the near‐term sustainable option are developed. The capability of three electrolysis systems including alkaline water electrolysis (AWE), polymer electrolyte membrane electrolysis, and solid oxide electrolysis for coupling to solar systems for H2 production is discussed. Since the cost of solar hydrogen has a very large range because of the various employed technologies, the challenges, pros and cons of the different methods, and the commercialization processes are also noticed. Among three electrolysis technologies considered for postulated solar hydrogen economy, AWE is found the most mature to integrate with the CPV system. Although substantial progresses have been made in solar hydrogen production technologies, the review indicates that these systems require further maturation to emulate the produced grid‐based hydrogen.

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“…The industrial scale curbing CO 2 emission by 2030 calls for alternative technical solution that shifts its reliance from fossil based materials to the renewable substances . Among current potential technical solutions, hydrogen energy has attracted great interests due to its inherent advantages as energy carriers . However, the status quo of industrial scale hydrogen production is dominated by the conventional techniques, that is, steam reforming, autothermal reforming, and partial oxidation, which mainly uses the fossil based materials.…”

Section: Introductionmentioning

confidence: 99%

“…1,2 Among current potential technical solutions, hydrogen energy has attracted great interests due to its inherent advantages as energy carriers. 3 However, the status quo of industrial scale hydrogen production is dominated by the conventional techniques, that is, steam reforming, autothermal reforming, and partial oxidation, which mainly uses the fossil based materials. These mature techniques are facing great challenge, as more stringent environmental and emission regulations are being enforced.…”

Section: Introductionmentioning

confidence: 99%

Optimization of biohydrogen production using acid pretreated corn stover hydrolysate followed by nickel nanoparticle addition

et al. 2019

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Summary The dilute acid hydrolysis using corn stover (CS) to produce reducible sugars was optimized by the response surface methodology. The electron‐equivalent balances of the main metabolites during the dark fermentation (DF) using acid hydrolysate were investigated to identify the evolutions of the electron sinks over the course of DF. The additions of nickel ion and Ni0 nanoparticles (NPs) were found to effectively enhance the hydrogen production at experimental conditions. The optimal condition (HCl 2.5 wt%, hydrolyzing duration 105 minutes, pH=5, S/B=3.5, Ni0 NPs=10 mg/L‐1) was achieved with YH2/S reaching 1.18 (mol.mol‐1‐glucose). The YH2/S increased from 0.7 (mol.mol‐1‐glucose) to 1.18 (mol.mol‐1‐glucose) reaching 40% hydrogen yield increase when Ni0 NPs was added to the fermentation broth. Among the investigated significant soluble metabolites, the butyric acid was found to serve as the largest e‐sink in the electron‐equivalent balance. The additions of Ni0 NPs at low level (below 10 mg/L) were found to appreciably increase the hydrogen production. The increased pH and substrate to biomass ratio were found to skew the metabolic balance from hydrogen production to the biosynthesis (an increase of biomass). The proposed anaerobic digestion model with consideration of the inhibitory factors model presents a good agreement with the experimental data. The chemical addition such as nickel ions, Ni0 NPs was found to be a practical approach in enhancing biohydrogen production using CS acid hydrolysate as cultivation broth.

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Economics of converting renewable power to hydrogen

Cited by 836 publications

References 36 publications

Synergies in offshore wind and oil industry for carbon capture and utilization

Synergies in offshore wind and oil industry for carbon capture and utilization

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

Optimization of biohydrogen production using acid pretreated corn stover hydrolysate followed by nickel nanoparticle addition

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