Electricity Journal最新文献

Also known as the Fourth Industrial Revolution, the concept of Industry 4.0 emerged in 2011 from a German government project, which stimulated the computerization of production lines in industries due to the increased demand for specific and personalized products using the growing evolution of new technologies that enabled the integration between machines in their production environment. Through a systematic literature review, this study seeks to understand the concepts of Industry 4.0 in the electricity sector, considering the aspects of its planning and the expected structural benefits, both in the quality of distributed energy and, consequently, in the application of this energy for the automation of industrial productive processes and smart cities. This study found twelve main dimensions most cited by the authors, of which five constructs of Industry 4.0 in the electricity sector were formed: infrastructure, technologies, smart solutions, sustainability, and energy management. Such constructs are interconnected like a gear system, on which each construct depends on the other. This study seeks to analyze the impacts, support elements, benefits, disadvantages, and the possibility of developing new procedures, products, and services that the technologies of Industry 4.0 can bring to the electrical sector and indirectly to its customers. It also aims to identify the factors that lead the top management to the right decision regarding the choice of technologies to increase efficiency and quality never previously achieved with current processes and technologies.

Electricity pricing ($/kWh) is a topic of widespread discussion, both for developing and developed countries, because it has begun a worrying upward trend that impacts the well-being of the entire population. Initially, it is expected to reflect the marginal costs of generation and to be affected mainly by the availability of primary resources for electricity generation and the interaction of agents in the market. However, regulations may lead to changes in this expected behavior, for Colombian case, several studies have highlighted the significant impact of the reliability charge (current capacity market in Colombia) on spot price formation, although this capacity market features remuneration independent of the energy market, and these revenues must reflect the costs associated with reliability. The present study conducts an impact evaluation on the time series of the electricity spot price in Colombia to establish whether the resolution that established the reliability charge (CREG071/06) significantly affected the formation of the spot market price. The results suggest that the resolution under study increased the bid of generators in the short and long term, which was accompanied by an average increase of approximately 12% in the spot price of electricity in Colombia.

Access to adequate and reliable electricity is paramount for the adaptation and resilience of typhoon-prone coastal communities, particularly in the face of intensifying challenges posed by climate change. Climate-related extreme weather events, such as typhoons and their consequent flooding and storm surges, exert significant pressure on electricity systems in these vulnerable regions, affecting every aspect from generation to transmission, distribution, and end-user utilization. Therefore, urgent action is required to fortify these communities with electric systems that are resilient enough to withstand such meteorological extremes. This review paper examines the far-reaching impacts of extreme weather events on electricity systems and showcases illuminating case studies that highlight innovative strategies to bolster these systems against such extremes. The review emphasizes the pivotal role of meticulous energy planning, strong support from local governments, and the significance of infrastructure hardening in building resilient energy systems. Future research opportunities exist in integrating renewable energy, engaging community members, assessing climate risks, and cross-sectoral resilience.

Venezuela’s electricity sector has been facing a deep crisis. By 2020, the electricity production plummeted to 74.5 TWh, a drastic 43% reduction with respect to the peak of 132.5 TWh registered in 2013. The reasons behind the collapse of Venezuela’s electricity sector are multifactorial and widely described in the literature. However, there is a lack of discussion on how to overcome the electricity crisis, considering the new opportunities provided by the ongoing energy transition paradigm. In this paper, a review of existing views to recover Venezuela’s electricity system is provided. Two public-available detailed plans: the Venezuelan Electricity Sector Recovery Plan (VESRP) and the National Assembly’s Country Plan Electricity (CPE) are described and analyzed in detail. It is concluded that both proposals are pragmatic attempts to restore the reliable hydrothermal model that prevailed until 1998. However, there is a lack of insight about the economic and environmental opportunities of building a decarbonized electricity matrix in account of the existence of huge renewable energy resources. Fulfilling a balance between reconstructing Venezuela’s historic electricity system and building a new decarbonized system is of major significance. Urgent humanitarian needs and the demands of Venezuelan citizens call for the restoration of electricity supplies as fast as possible, but also with a modern system that ensures a low long-run marginal cost that enables competition and ensure economic growth.

The global electricity market is undergoing a transformative shift, envisioning a future resembling commodity trading platforms. Enabled by mature communication technologies, this evolution empowers energy consumers worldwide to actively engage in the energy market, negotiating arrangements for adjusting energy demand during grid stress and optimizing costs. In this era of technological advancements, this vision is materializing globally. Commercial and industrial entities are playing active roles in ancillary services markets, providing crucial grid support. Efforts are expanding to engage smaller users through third-party aggregators. However, many initiatives retain opt-in structures, limiting customer engagement. A promising solution is local energy markets, integrating modest flexibility reserves globally. This empowers small-scale users to choose services aligned with their preferences. This paper delves into the essential components facilitating the transition to globally applicable, aggregator-mediated demand-side management markets. Anchored in dynamic consumer engagement and nurtured by reciprocal information flows, this shift signals a fundamental reshaping of the global energy landscape. The paper introduces a universally adaptable demand response aggregation framework for energy enterprises to systematically devise consumer-centric programs. This framework serves as a foundational structure, fostering a strategic and flexible approach to meet evolving consumer preferences in demand response initiatives worldwide.

Renewable portfolio standard (RPS) laws are among the most important climate change policies, requiring a minimum percentage of electricity from clean energy sources. From 2015–2022 in the U.S., eleven states enacted 100 % RPS laws and seven others strengthened their targets. This study examines the issue framing behind these recent RPS laws, which reflects and affects the political context surrounding the policies, people's views, and support among stakeholders. Through coding of policy documents, the study evaluates how policymakers have framed the policies, differences in framing between states with 100 % and non-100 % RPS targets, and variation in framing connected with political party and partisan votes. Surprisingly, given recommendations in the literature to downplay climate issues and emphasize economics, lawmakers predominantly framed 100 % clean energy laws based on climate change. Policymakers that adopted non-100 % RPS laws utilized less climate framing and garnered more Republican Party legislator votes. The results indicate a distinction in framing between more modest and ambitious climate policies, raising a question about the applicability of recommendations urging minimization of climate messaging to transformative climate and clean energy policy efforts. Depending on political conditions, climate framing may be effective for ambitious energy approaches.

Understanding market participants' competitive behaviour is essential for optimising financial performance in liberalised electricity markets. However, this is challenging due to complex market structures, generation dependent on different primary energy sources and lack of transparency. This paper introduces a novel approach using power spectrum analysis applied to wholesale electricity markets to uncover hidden patterns. Applying this novel method to the Western Australian Wholesale Electricity Market (WEM) revealed periodic cycles in different fuel types and technologies that offered insights into competitor behaviour not immediately evident in the dataset. Surprisingly, the approach uncovered that in a power system with high penetration of renewable generation, there is a weak price response to demand changes, challenging assumptions about the direct link between demand and price formation. These insights could be applied gain a competitive edge in capital investment decisions and tactical bidding behaviour.

We contribute to the conventional Environmental Kuznets Curve literature by modeling the relationship between income and electric power consumption among five Asian economies (ASEAN-5): Indonesia, Malaysia, the Philippines, Singapore, and Thailand. Economic growth together with rapid urbanization contributes to increases in electricity use. Still, it is not clearly understood whether and to what extent improvements in technology could ultimately allow a more efficient use of power. We test whether electricity consumption follows an inverted U-shape curve (Electricity Kuznets Curve, ELKC) using the unrestricted error correction model fitted on historical data for each country. The long-run results indicate that the ELKC hypothesis is detected in Indonesia, the Philippines, and Singapore. Our results suggest that if these countries continue to follow the ELKC trajectory, further increases in income could facilitate energy-efficiency innovations to prevent a monotonic relationship between growth and electric power use. The finding implies that there is room for policies to incentivize energy efficiency measures in multiple sectors.