Starting in early 2020, the novel coronavirus disease (COVID-19) severely attached the U.S., causing substantial changes in the operations of bulk power systems and electricity markets. In this paper, we develop a data-driven analysis to substantiate the pandemic's impacts from the perspectives of power system security, electric power generation, electric power demand and electricity prices. Our results suggest that both electric power demand and electricity prices have discernibly dropped during the COVID-19 pandemic. Geographically diverse impacts are observed and quantified, while the bulk power systems and markets in the northeast region are most severely affected. All the data sources, assessment criteria, and analysis codes reported in this paper are available on a GitHub repository.
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http://dx.doi.org/10.1016/j.apenergy.2020.116354 | DOI Listing |
J Phys Chem B
January 2025
Department of Mathematics and Physics, North China Electric Power University, Baoding 071003, China.
Within the framework of classical density functional theory, the isosteric heat and condensation/evaporation heat of the confined methane are studied. First, the theoretical expression for condensation/evaporation heat is derived on the basis of the first law of thermodynamics. The method for computation is also proposed.
View Article and Find Full Text PDFSmall
January 2025
Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, China.
Narrowband photodetection with selective light detection in ultraviolet (UV) range is particularly pronounced in specialized such as targeted wavelength imaging and UV-phototherapy. In contrast to conventional strategies, ferroelectric materials with pronounced bulk photovoltaic effect (BPVE) provide a novel asymmetric carrier generation concept for achieving filterless spectrally selective photodetection. Herein, for the first time, the realization of self-powered filterless narrowband UV photodetection is demonstrated in bulk single crystals of a newly developed halide perovskite ferroelectric, 2FEAEAPbCl (2FEEPC), which exhibits a wide bandgap of 3.
View Article and Find Full Text PDFNat Mater
January 2025
Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China.
Printing of large-area solar panels necessitates advanced organic solar cells with thick active layers. However, increasing the active layer thickness typically leads to a marked drop in the power conversion efficiency. Here we developed an organic semiconductor regulator, called AT-β2O, to tune the crystallization sequence of the components in active layers.
View Article and Find Full Text PDFNat Commun
January 2025
WA School of Mines: Minerals, Energy and Chemical Engineering (WASM-MECE), Curtin University, Perth, WA, 6102, Australia.
Reducing green hydrogen production cost is critical for its widespread application. Proton-exchange-membrane water electrolyzers are among the most promising technologies, and significant research has been focused on developing more active, durable, and cost-effective catalysts to replace expensive iridium in the anode. Ruthenium oxide is a leading alternative while its stability is inadequate.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China.
The -doped biochar is recognized as a promising, cost-effective, and efficient material for CO adsorption. However, achieving efficient enrichment of -containing adsorption sites and improving their accessibility remains a bottleneck problem that restricts the adsorption performance of -doped biochar. Herein, a synthesis strategy for nitrogen-doped biochar by one-pot ionothermal treatment of biomass and zeolitic imidazolate framework (ZIF) precursors accompanied by pyrolysis is demonstrated.
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