Abstract The widespread integration of photovoltaic (PV) power, energy storage systems, and other demand‐side resources highlights the importance of optimal dispatching for the PV‐storage‐load virtual power plant (VPP). However, the fluctuation of the PV power generation and the uncertainty of the electricity prices exacerbate the economic operation risks of the VPP. To address these challenges, an optimal dispatching strategy for the PV‐storage‐load VPP is proposed, with due consideration given to the dual uncertainties of electricity prices and PV power output. Firstly, the conditional value‐at‐risk theory is employed to quantify the uncertainty risk of VPP revenue caused by electricity price fluctuations. Secondly, in view of the asymmetric fluctuation intervals of PV power output, a quantification method for PV uncertainty and dispatch robustness is developed using the confidence gap decision theory. Furthermore, by combining the regulation reserve model of multi‐type flexible resources, a robust optimization model for the PV‐storage‐load VPP is constructed with the objective of maximizing comprehensive operational revenue, which includes the provision of upward and downward reserve services. Finally, case studies based on a PV‐storage‐load VPP in a Chinese province are conducted to validate the effectiveness and superiority of the proposed model. The simulation results indicate that the proposed robust optimization strategy effectively reflects the relationship between the uncertainty of PV power output and the risk preference of decision‐maker, mitigates the fluctuation risks of electricity prices to ensure the stability of the power system, and enhances the economic efficiency and flexibility of the PV‐storage‐load VPP operation.
Energy industries. Energy policy. Fuel trade, Production of electric energy or power. Powerplants. Central stations
CPVG (Utility-scale photovoltaic generation) is expanding rapidly worldwide, yet its cumulative ecological effects remain insufficiently quantified. This review synthesizes current evidence to clarify how CPVG influences ecosystems through linked mechanisms of energy redistribution, biogeochemical cycling disturbance, and ecological responses. CPVG alters surface radiation balance, modifies microclimate, and disrupts carbon–nitrogen–water fluxes, thereby driving vegetation shifts, soil degradation, and biodiversity decline. These impacts accumulate across temporal scales—from short-term construction disturbances to long-term operational feedbacks—and propagate spatially from local to regional and watershed levels. Ecological outcomes differ substantially among deserts, grasslands, and agroecosystems due to contrasting resilience and limiting factors. Based on these mechanisms, we propose a multi-scale cumulative impact assessment framework integrating indicator development, multi-source monitoring, coupled modelling, and ecological risk tiering. A full-chain mitigation pathway is further outlined, emphasizing optimized siting, disturbance reduction, adaptive management, and targeted restoration. This study provides a systematic foundation for evaluating and regulating CPVG’s cumulative ecological impacts, supporting more sustainable solar deployment.
Production of electric energy or power. Powerplants. Central stations
Against the backdrop of the global energy revolution and China’s “dual carbon” goals, integrated energy service stations-new infrastructure combining multi-energy supply (oil, gas, electricity, hydrogen, storage) and smart services-have become key enablers of clean transportation energy transition and the new energy system. This paper systematically reviews the development landscape of China’s integrated energy service stations. It finds that, driven by top-level policies and market exploration, the sector has entered a fast lane of large-scale and diversified growth, with co-located stations as the mainstream model and growing trends toward smart and eco-friendly operations. However, development is still constrained by weak planning and approval coordination, lagging technical integration and standards, severe early-stage economic challenges, and complex cross-energy safety management. Drawing on domestic and international best practices, this paper proposes systematic countermeasures: strengthening top-level design and “multi-plan integration,” building an innovation system that pairs technology breakthroughs with standard leadership, creating “energy-plus” value-ecosystem business models, and erecting a full-chain smart safety defense, aiming to provide decision-making references for high-quality and sustainable development of China’s integrated energy service stations.
Various mechanisms have been investigated in the literature for seismic protection of fluid tanks. These structures play a pivotal role in the integrity, reliability, and safety of strategic industries. Any damage to fluid tanks can jeopardise these industries and the environment. In this research, a Smart Vertical Isolation System using magnetorheological dampers for rocking isolation of legged rigid cylindrical fluid tanks under base excitations has been proposed and investigated. First, dynamic equations of motion for the rocking rigid fluid tank are developed. Different semi-active classical and an online data-driven adaptive control technique are then employed to examine the efficacy of the rocking isolation system. Parameters of the data-driven controller are estimated online in real-time using the Recursive Least Squares approach, which offers simplicity, robustness against faults, and small memory requirements. Numerical simulations are compared with experimental investigations to validate the accuracy of the developed dynamic equations and the performance of the MR dampers and control techniques in mitigating the seismic effects on the examined fluid tank. The MR dampers and semi-active control strategies proved substantial reductions in the uplift displacement of the tank as one of the main causes of damage to these structures under earthquakes.
Production of electric energy or power. Powerplants. Central stations
Salim Hussain, Adeniyi Oyebade, Md Riyad Hossain
et al.
The demand for effective, economical, and sustainable anode materials for metal-ion batteries (MIBs) has increased significantly due to the rapid growth of energy storage technologies. Among various candidates, carbon-based materials have emerged as highly promising due to their abundance, structural versatility, and favorable electrochemical properties. This review highlights the current status and future directions of carbon-based anode materials in MIBs, with a particular focus on graphite, hard carbon, carbon nanotubes, heteroatom-doped carbons, carbon-based composites, and other related structures. Various synthesis strategies for these materials are presented, along with discussions on their physicochemical characteristics, including structural features that influence electrochemical performance. Furthermore, we provided an overview on the performance of newly developed carbon-based anode materials in lithium-, sodium-, potassium-, and other emerging metal-ion battery systems to assess the impact of different synthesis approaches. Special attention is given to surface engineering, heteroatom doping, and composite design that can address intrinsic challenges such as limited ion diffusion, low reversible capacity, and poor cycling stability in MIBs. This review does not cover any carbon materials which have been used as an additive. In addition, the review explores emerging opportunities enabled by advanced characterization techniques, computational modeling, and artificial intelligence for optimizing the design of next-generation carbon anode. Finally, this article provides future perspectives and insights into the design principles of novel carbon-based anode materials that can accelerate the development of high-performance, durable, and sustainable MIB technologies.
Production of electric energy or power. Powerplants. Central stations, Industrial electrochemistry
Abstract Natural disasters would destroy power grids and lead to blackouts. To enhance resilience of distribution systems, the sequential load restoration strategy can be adopted to restore outage portions using a sequence of control actions, such as switch on/off, load pickup, distributed energy resource dispatch etc. However, the traditional strategy may be unable to restore the distribution system in extreme weather events due to random sequential contingencies during the restoration process. To address this issue, this paper proposes a distributionally robust sequential load restoration strategy to determine restoration actions. Firstly, a novel multi‐time period and multi‐zone contingency occurrence uncertainty set is constructed to model spatial and temporal nature of sequential line contingencies caused by natural disasters. Then, a distributionally robust load restoration model considering uncertain line contingency probability distribution is formulated to maximize the expected restored load amount with respect to the worst‐case line contingency probability distribution. Case studies were carried out on the modified IEEE 123‐node system. Simulation results show that the proposed distributionally robust sequential load restoration strategy can produce a more resilient load restoration strategy against random sequential contingencies. Moreover, as compared with the conventional robust restoration strategy, the proposed strategy yields a less conservative restoration solution.
Distribution or transmission of electric power, Production of electric energy or power. Powerplants. Central stations
Undoubtedly, wind turbines are currently one of the most significant contributors to clean energy. Therefore, it is crucial to enhance the capability of wind turbines, which in turn leads to an increase in their dimensions. Nevertheless, only advanced control systems can guarantee the optimal and secure operation of these huge machines. On the other hand, the precise control of these modern wind turbines is only achievable through the use of highly specialised actuators. Despite their importance, actuators have historically been overlooked and seen as secondary components in control systems. However, in modern machines, actuators are required to manipulate multiple tonnes or manage thousands of volts and amperes within short times. Consequently, greater emphasis must be placed on their handling and operation. This study aims to review actuators for modern large wind energy converters from a control engineering perspective, using a tutorial approach.
Materials of engineering and construction. Mechanics of materials, Production of electric energy or power. Powerplants. Central stations
Abstract Fiber‐shaped sodium dual‐ion batteries (FSDIBs) have attracted considerable attention in wearable electronics because of their low cost and natural abundance and intrinsic flexibility, as well as high working voltage and energy density. Thus, exploration of an electrode material with good flexibility and more accommodative spaces for the reversible shuttle of large anions and Na+ cations is quite necessary but challenging. Herein, Bi nanoparticles anchored on a carbon nanotube fiber are homogeneously fabricated and used as anodes to assemble FSDIBs with carbon fiber‐coated polytriphenylamine cathodes. A series of in situ/ex situ characterizations are conducted to investigate the corresponding battery reaction mechanism of anodes, revealing a reversible reaction process of mixed insertion‐alloying behavior. Owing to excellent electrochemical properties and electrode match, the FSDIBs show ultralong cycle stability for 5000 cycles at 5 A g−1 and remarkable rate capability ranging from 2.5 to 20 A g−1. Moreover, the FSDIBs also show good flexibility under different bending deformations. This work paves the way for development of flexible energy storage devices for wearable devices.
Production of electric energy or power. Powerplants. Central stations
Cubic SrVO _3 perovskite oxide is an attractive candidate for high-temperature energy applications due to its favorable features such as multiple oxidation state cations, high structural and thermal stabilities, ability to accommodate a large number of oxygen vacancies, and cost-effectiveness. Herein, the temperature-dependent reduction properties of SrVO _3 have been studied using accurate first-principles calculations to reveal the effects of oxygen vacancies and temperature on the reduction potential of SrVO _3− _δ , δ = 0–0.125. The reduction potential of SrVO _3− _δ was found to be significantly impacted by increasing oxygen vacancy concentration and temperature. Analysis of the electronic and vibrational properties of SrVO _3− _δ for differing δ revealed the origin of this reduction behavior. The electronic structure analysis shows that the reduction of SrVO _3− _δ upon oxygen vacancy formation is highly localized to the neighboring V ^4+ t _2g states in the vicinity of the oxygen defect, irrespective of δ . A comparison of the vibrational density of states of defect-free and reduced SrVO _3 demonstrated that the ionic contributions to the phonon density of states, and hence to the thermal contributions to the SrVO _3− _δ lattices, were significantly altered by the introduction of oxygen vacancies, which ultimately impacted the temperature-dependent reduction behavior of SrVO _3− _δ .
Production of electric energy or power. Powerplants. Central stations, Renewable energy sources
Abstract Polymer electrolyte membrane water electrolysis (PEMWE) is an attractive hydrogen energy production technology that offers various advantages such as compact design, high operating pressure, high current densities, and high hydrogen gas purity. However, PEMWE still faces several critical challenges, particularly with respect to the oxygen evolution reaction (OER) at the anode. Highly active, corrosion‐resistant electrocatalytic materials are required for the acidic OER owing to its sluggish kinetics involving four‐electron transfer under harsh anodic potentials. To date, IrO2‐ or RuO2‐based noble metal electrocatalysts have been employed as commercial acidic OER electrocatalysts for PEMWE. However, they remain inadequate in terms of satisfying the industrial activity/stability‐related requirements. Above all, the two noble metals are too rare and expensive, which significantly inhibits widespread commercialization of PEMWE. Therefore, low‐cost, highly active, and highly stable OER electrocatalysts that can operate in acidic media must be urgently developed. This review paper presents various state‐of‐the‐art strategies employed to address the aforementioned issues by classifying them according to objectives such as improving activity, enhancing stability, and reducing cost. Then, finally, we summarize major tasks and strategies to overcome them and put forward a few issues in this field.
Production of electric energy or power. Powerplants. Central stations