The rise of the damage to energy systems caused by both natural and man-made disruptive events and the connection between energy systems and socio-economic systems have motivated the study of energy ...system resilience. This paper conceptualizes and comprehensively presents a systematic review of the recent literature focused on the analytical, technical, and mathematical points from the standpoint of the energy systems facing disruptive events. To this end, five phases are developed. Firstly, the concept of the energy system resilience is presented, and then the energy resilience characters and the resilience states are introduced and connected. Thirdly, the formulation and indicators of the energy resilience are demonstrated, and modeling features, modeling approach, and solving methods are discussed and compared. Finally, the gaps in the existing literature on the energy system resilience are identified, and future research opportunities are suggested.
•A comprehensive review of frameworks and quantitative indicators of energy system resilience.•Summarize typical implementation approaches for the modeling of energy systems.•Propose the characters of the energy systems resilience.•Future directions in the energy system resilience research are discussed.
•Despite years of research the concept of resilience remains ambiguous.•Ambiguities could lead to difficulties in theory and practice.•We address some of these ambiguities through a literature ...review.•Contextual issues and constant evolution are main reasons behind the ambiguities.•We propose a conceptual framework for better understanding of the concept.
Considering the rapid urbanization trends in many parts of the world and the increasing consequences of climate change, more and more cities are at risk of natural disasters and other environmental, socio-economic, and political disruptions. To address these issues, resilience thinking has attracted the attention of a wide range of stakeholders. However, despite considerable attention to this concept and its frequent usage, resilience remains ambiguous with diverse interpretations in policy discussions and academic debates about cities. Since such vague interpretations would lead to difficulties in theory and practice, the present study aims to clarify some of these concepts by providing a comprehensive review focused on resilience features and comparing different perspectives regarding urban resilience. The study results showed that the main reason behind such ambiguities is that resilience has undergone fundamental changes since its inception, and recent approaches to resilience are generally based on the non-equilibrium model of resilience. There are three main dimensions, including systems, agents, and institutions, as well as three main approaches to urban resilience, including recovery, adaptation, and transformation. This study's conceptual framework of urban resilience provides scholars and policymakers with a more transparent and comprehensive picture of urban resilience and helps them make better-informed decisions.
The development of networks for resilience-knowledge sharing and support is as a popular solution for building resilience in cities. Despite the benefits of knowledge sharing and collaboration for ...resilience building between cities on an international scale, there is a gap in the literature and practice regarding such networks at the national level. This research involves a survey of city authorities' perceptions of the benefits of the creation of a national knowledge-sharing network, their criteria for selecting resilience partners, and their preferred mechanisms for knowledge sharing and diffusion within the network. Using New Zealand (NZ) as a case study, the current exploratory sequential study implements an initial qualitative stage with selected NZ cities to determine initial criteria, followed by a nationwide quantitative survey to test these criteria. A final quantitative survey with international subject-matter experts was conducted for international transferability. The study revealed that establishing a national-level resilience-knowledge network requires general and supportive conditions, specific criteria for selecting suitable resilience collaboration-partner cities, and appropriate knowledge-transfer mechanisms. The findings can be used to guide the development of national resilience-knowledge networks and are aimed at local governments, policymakers and analysts, resilience practitioners, and knowledge-network managers.
•Working collaboratively and peer-to-peer city learning can provide a promising pathway for resilience enhancement.•A national resilience-knowledge network promotes knowledge sharing, collaboration, standardisation of resilience approaches, and enhances the relationship between academia and resilience practice.•Three pillars were identified for establishing a resilience network: general governance and characteristics of the network, resilience partner selection, and knowledge management mechanisms.•Selecting a suitable resilience partner can be influenced by factors such as geographic proximity and similarity of resources allocated for resilience building.•Selection of the right channels for knowledge transfer and engagement can enhance the outcomes of collaborating for resilience.
Boosting the resilience of power systems is one of the core requirements of smart grid. In this paper, an integrated resilience response framework is proposed, which not only links the situational ...awareness with resilience enhancement, but also provides effective and efficient responses in both preventive and emergency states. The core of the proposed framework is a two-stage robust mixed-integer optimization model, whose mathematical formulation is presented in this paper as well. To solve the above model, an algorithm based on the nested column-and-constraint generation decomposition is provided, and computational efficiency improvement techniques are proposed. Preventive response in this paper considers generator re-dispatch and topology switching, while emergency response includes generator re-dispatch, topology switching and load shedding. Several numerical simulations validate the effectiveness of the proposed framework and the efficiency of the solution methodology. Key findings include the following: 1) in terms of enhancing power grid resilience, the integrated resilience response is preferable to both independent preventive response and independent emergency response; 2) the power grid resilience could be further enhanced by utilizing topology switching in the integrated resilience response.
In this conceptual piece, I share my thoughts on tourism resilience in the ‘new normal’ and outline both opportunities and challenges for the tourism industry and academia in understanding and ...applying resilience as a tool for improved individual, organizational, community and destination outcomes. Drawing from engineering, ecological and socio-ecological resilience perspectives, I propose a theoretical model that can be applied to various destinations to strengthen linkages between resilience that may exist at different socio-spatial scales. As argued in the paper, socio-ecological system resilience finds its relevance mostly, and can be more important, at the tourism-system and destination levels whereas engineering and ecological resilience can be more important and adequate, in the short-term, at the individual and organizational levels to navigate unexpected changes. From these, I draw a research agenda that would guide tourism researchers in advancing tourism resilience research in the ‘new normal’.
The past several decades have witnessed an increasing number of natural and manmade hazards with a dramatic impact on the normal operations of the society. The occurrences of these hazards manifest a ...growing trend of uncertainty. Assessing the performance of systems under such hazards is a salient concern of researchers and practitioners. The notion of 'resilience' has been proposed and popularised to characterise system performance deterioration and restoration due to different hazards and threats. Substantial effort has been devoted to quantify and describe resilience from different perspectives. However, there is no generic metric for assessing the resilience of different systems under different hazards. This paper provides a review of existing approaches that quantitatively assess resilience, along with their applicable scenarios and limitations. New general and generic resilience metrics for systems with multimodal performance are proposed. Opportunities for multi-hazard resilience modelling and enhancements are presented.
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