Challenges and opportunities of energy storage technology in abandoned coal mines: A systematic review

Wu, Fei; Liu, Yue; Gao, Renbo

doi:10.1016/j.est.2024.110613

Cited by 4 publications

(3 citation statements)

References 76 publications

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“…In fact, coal mining and extraction has been eliminated in countries such as the Netherlands (1970), Belgium (1990), France (2004) and Spain (2018) [1]. This is not limited to the European space; in fact, in recent years, the dominant position of coal in the energy consumption of China, the world's largest GHG emitter, has not changed, but the share of coal in its energy consumption has been decreasing year by year [2], so much so that the share of energy from natural gas and non-fossil fuels increased significantly from 17.9% in 2015 to 25.9% in 2022 [3]. Furthermore, the share of non-fossil energy sources, such as wind, solar and geotermal, increased from 11% in 2015 to 17.5% in 2022 [4].…”

Section: Introductionmentioning

confidence: 99%

New Uses for Coal Mines as Potential Power Generators and Storage Sites

Pous de la Flor,

Pous Cabello,

Castañeda

et al. 2024

Energies

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In the context of sustainable development, revitalising the coal sector is a key challenge. This article examines how five innovative technologies can transform abandoned or in-use coal mines into sustainable energy centres. From solar thermal to compressed air energy storage, these solutions offer a path to a more sustainable future while addressing the decline in coal production. This approach not only promotes energy efficiency but also contributes to the mitigation of environmental impacts, thus consolidating the transition to a more responsible energy model. Thus, in this document, the reader can find the explanation of why we have opted for these technologies and not other existing ones. In addition, the economic, environmental and technical feasibility of the different technologies is analysed. Finally, real cases of the successful application of these technologies will be presented once they have gone beyond the project idea phase, and the reasons why we are calling for their transposition to the coal industry in the search for its revitalisation will be explained.

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Section: Introductionmentioning

confidence: 99%

New Uses for Coal Mines as Potential Power Generators and Storage Sites

Pous de la Flor,

Pous Cabello,

Castañeda

et al. 2024

Energies

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“…Coal, a fascinating and multifunctional material, has garnered significant interest in recent years due to its potential utility across a wide range of applications [1], encompassing areas such as advanced construction materials [2], environmental remediation techniques [3], and innovative energy storage solutions [4]. This material's unique properties stem from its intricate structural and microstructural characteristics, which have been molded by an array of geological processes and environmental influences throughout its formation [5].…”

Section: Introductionmentioning

confidence: 99%

“…For instance, its inherent porosity and high specific surface area make it an excellent candidate for applications in adsorption and filtration [8], while its remarkable mechanical strength and durability [9] make it well suited for use in construction materials [2]. Furthermore, coal's electrochemical properties suggest promising potential for energy storage and conversion technologies [4].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive physicochemical characterization of Algerian coal powders for the engineering of advanced sustainable materials

Ferfar,

Sakher,

Bouras

et al. 2024

TAPR

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The object of the research is the intriguing and versatile material known as coal that attracted a lot of attention lately because of its potential use in a variety of fields, including cutting-edge building materials, environmental remediation methods, and creative energy storage solutions. This study presents an extensive characterization of Algerian natural coal powders, employing a multifaceted analytical approach that includes Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), and Raman Spectroscopy, to reveal their physicochemical properties including morphology, particle size distribution, crystalline structure, and functional groups. The SEM analysis unveiled a heterogeneous morphology with a broad particle size distribution, indicative of the coal's complex structure. The XRD findings, refined using Rietveld analysis, distinguish Carbon (C) and Silicon Dioxide (SiO2) as the primary phases, with crystallite sizes measuring 18.7539 nm for C and 16.6291 nm for SiO2. These phases constitute 98.8 % and 12 % of the composition, respectively, while the presence of quartz underscores the coal’s geological background and its thermal resilience. Regarding the results of the FTIR spectroscopy, absorption peaks corresponding to various functional groups are highlighted, suggesting a rich organic and inorganic composition. Raman spectroscopy corroborates the presence of disordered and graphitic carbon structures, emphasizing the coal's potential for diverse applications. These findings underline the significance of Algerian coal powders for environmental remediation, energy storage, and advanced construction materials, contributing to the advancement of sustainable energy solutions.

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