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This paper reports the optimum operation of a virtual power plant (VPP) to reduce the reliance on coal and gas-based energy generation. This practice not only promotes the incorporation of renewable-based energy sources but also reduces the reliance on fossil-based resources which are limited in the reserves. The selected VPP system comprises small hydropower, wind turbine, solar photovoltaics and fuel cells accompanied by a co-generation unit. The proposed VPP is also equipped with a storage facility applicable as a flexible storage option i.e., an electric vehicle followed by an energy storage system. In addition, the primary objective of this work is to lessen the overall cost associated with the system along with a reduction in the generated emissions. Moreover, a Golden Jackal-based Optimization inspired by nature is utilized in a single and multi-objective framework to attain the desired target objectives. Furthermore, the scheduling of the VPP system is carried out on a day-ahead basis and the outcome in terms of cost and emission is compared with the available work in the literature and the result reveals the effectiveness of the system in terms of quality solutions sets for the objectives, minimum computational time and better convergence behavior. In particular, there is a reduction in cost by 2.1% and 0.62% when compared with the salp swarm algorithm and beluga whale algorithm followed by 2.12% and 1.18% in emission. Furthermore, the cost/emission of the VPP system is also abridged by employing a Pareto-based approach which shows the suitability and effectiveness of the developed system.
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http://dx.doi.org/10.1038/s41598-025-09164-y | DOI Listing |
Sci Rep
September 2025
Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology (AIST), Fukushima, 9630298, Koriyama, Japan.
The increasing adoption of the Internet of Things (IoT) in energy systems has brought significant advancements but also heightened cyber security risks. Virtual Power Plants (VPPs), which aggregate distributed renewable energy resources into a single entity for participation in energy markets, are particularly vulnerable to cyber-attacks due to their reliance on modern information and communication technologies. Cyber-attacks targeting devices, networks, or specific goals can compromise system integrity.
View Article and Find Full Text PDFOpt Express
April 2025
Electrothermally-actuated two-axis scanning microelectromechanical system (MEMS) micromirrors have gained significant attention in the field of optical endomicroscopy for their large scan range at low driving voltages. However, significant coupling between the two axes when actuated at resonance poses a challenge. In this work, an asymmetric two-axis electrothermal MEMS micromirror design is proposed to realize decoupled two-axis resonant scanning.
View Article and Find Full Text PDFAdv Healthc Mater
July 2025
Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, 561-756, Republic of Korea.
The increasing prevalence of diabetes, associated with complications such as heart attacks, strokes, and kidney failure, has necessitated the development of diverse, customized wearable sensors, particularly for the elderly. In this study, a fully integrated flexible sensor based on a PUC-CoNi-LDH@PANI nanocomposite is fabricated. This involves the direct growth of CoNi-double layer hydroxide (CoNi-LDH) through a facile template-free solvothermal treatment, followed by the vapor phase polymerization (VPP) of π-conjugated polyaniline (PANI) on a flexible electrospun polyurethane/chitosan (PUC) mat.
View Article and Find Full Text PDFSci Rep
July 2025
Department of Electrical and Electronics Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
This paper reports the optimum operation of a virtual power plant (VPP) to reduce the reliance on coal and gas-based energy generation. This practice not only promotes the incorporation of renewable-based energy sources but also reduces the reliance on fossil-based resources which are limited in the reserves. The selected VPP system comprises small hydropower, wind turbine, solar photovoltaics and fuel cells accompanied by a co-generation unit.
View Article and Find Full Text PDFJ Pers Med
May 2025
Saïd Business School, University of Oxford, Oxford OX1 1HP, UK.
Recent advances in artificial intelligence (AI) and machine learning (ML) enable targeted optimization of emergency department (ED) operations. We examine how reworking an ED's vertical processing pathway (VPP) using AI- and ML-driven recommendations affected patient throughput. : We trained a non-linear ML model using triage data from 49,350 ED encounters to generate a personalized risk score that predicted whether an incoming patient is suitable for vertical processing.
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