Electricity Journal最新文献

{"title":"The role of decentralised flexibility options for managing transmission grid congestions in Germany","authors":"Dierk Bauknecht ,&nbsp;Franziska Flachsbarth ,&nbsp;Matthias Koch ,&nbsp;Moritz Vogel","doi":"10.1016/j.tej.2023.107363","DOIUrl":"https://doi.org/10.1016/j.tej.2023.107363","url":null,"abstract":"<div><p><span>Decentralised flexibility options connected to the distribution grid can be used for congestion management in the transmission grid. Their potential contribution for the transmission grid in </span>Germany is investigated in a scenario analysis for the years 2030, 2040 and 2050.</p><p>The model-based evaluation shows that until 2050, cumulative grid congestion increases significantly, which indicates that there is a significant need for grid expansion. Decentralised flexibility options can reduce the cumulative grid congestion of the transmission grid by around 15% in 2030 to around 10% in 2050 if decentralised flexibility options are operated not just in line with the power market, but also with a view to transmission grid requirements. In absolute terms, the benefit of the decentralised flexibility options increases over time.</p><p>However, decentralised flexibility options are only suitable in a few cases to fully resolve grid congestions on a certain power line which indicates that grid extension might still be necessary, especially in the long term. Yet decentralised flexibility can still have effects on operational grid management (short-term perspective) and grid expansion needs (medium- and long-term perspective). Therefore, creating a suitable policy framework for the use of decentralised flexibilities is a contribution to achieving climate protection goals.</p></div>","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"37 1","pages":"Article 107363"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139100870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reform of the European electricity market: Should we prefer a price based on a weighted average of marginal costs with cross-subsidies?","authors":"Jacques Percebois ,&nbsp;Stanislas Pommeret","doi":"10.1016/j.tej.2023.107364","DOIUrl":"https://doi.org/10.1016/j.tej.2023.107364","url":null,"abstract":"<div><p>On the wholesale electricity market, the equilibrium price is set each hour on the basis of the marginal cost of the last power plant called, which is a gas-fired power plant a large part of the time in Europe. The surge in gas prices since the end of 2021 therefore largely explains the rise in the price of electricity. This paper analyses the reform projects proposed within the European Union to curb this surge in wholesale prices. It proposes then to reform the system by opting for pricing based on the weighted average hourly marginal costs, with financial compensation for power plants whose marginal cost is higher than this average. The quantitative study is conducted over the period January 1, 2020 through December 31, 2022 using ENTSOE hourly data. By implementing a compensation framework founded on average marginal costs, the market price experiences a significant decline, resulting in typically negative residual profits. Consequently, the fixed costs associated with the power plant fleet necessitate funding through the capacity market. This approach would enable French electricity consumers to align their payments with the structure of the national electricity fleet, specifically reflecting the average costs of power stations characterized by substantial fixed costs, such as nuclear facilities. The adoption of this proposed system is poised to expedite the energy transition toward a low-carbon economy.</p></div>","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"37 1","pages":"Article 107364"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139100737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differential impacts of electricity access on educational outcomes: Evidence from Uganda","authors":"Buyinza Faisal ,&nbsp;Jakob Kapeller ,&nbsp;Senono Vicent ,&nbsp;Amber Ahmed","doi":"10.1016/j.tej.2023.107362","DOIUrl":"https://doi.org/10.1016/j.tej.2023.107362","url":null,"abstract":"<div><p>We investigate the differential impact of electricity access on educational outcomes in Uganda using the Uganda National Panel Survey data and employ instrumental panel probit<span> techniques. The findings indicate that reliable electricity is associated with high school enrolment and completion. Also, the results show that education level of household head, marital status, gender, and good housing conditions are associated with better education outcomes. Our results provide evidence for designing supportive policies for increased access to reliable electricity especially among rural households where there are high disproportionately lower education outcomes. Also, the results suggest that policies to eliminate all barriers to reliable electricity access can greatly enhance educational outcomes in Uganda.</span></p></div>","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"37 1","pages":"Article 107362"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139107864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Public support and opposition toward floating offshore wind power development in Norway","authors":"Sharon Nytte,&nbsp;Frode Alfnes,&nbsp;Silja Korhonen-Sande","doi":"10.1016/j.tej.2023.107336","DOIUrl":"10.1016/j.tej.2023.107336","url":null,"abstract":"<div><p>For countries like Norway, with abundant offshore wind resources and deep seas, floating wind power technology can play an essential role in the green energy transition. However, this technology is still immature, and the first utility-scale floating offshore wind power projects need substantial support for technology development to be commercially feasible. This study employs an online survey targeting the general population in Norway (N = 1011) to investigate support and opposition toward floating offshore wind power development. The survey includes a discrete choice experiment focusing on policy-relevant factors such as the export of electricity, reducing domestic carbon emissions by electrifying offshore oil and gas platforms, impact on global technology cost trends, and involving domestic offshore industries as key players in the floating offshore wind sector. We find the highest support for developing projects that utilize technology from domestic offshore industries and projects connected to the domestic electricity grid. Projects aimed at reducing domestic carbon emissions by electrifying offshore oil and gas platforms are favored over those for exporting electricity to other countries. A significant impact on future technology costs does not lead to increased support for the project. Projects presented after a framing text focusing on meeting future electricity demand result in a higher willingness to pay for floating offshore wind projects than those presented after a framing text focusing on meeting climate objectives. Respondents opposing all the projects are likely climate skeptics and believe that project developers should bear all the project costs. Norway is expected to play a critical role in developing floating wind power. However, the Norwegians demand clear national benefits to be willing to shoulder the cost of spearheading the floating offshore wind power development. Understanding these preferences is vital for crafting energy policies aligning with public interests and rapidly integrating floating wind power into the green energy transition.</p></div>","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"37 1","pages":"Article 107336"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1040619023001033/pdfft?md5=6763cd1aeed131513008c2cf375b3eb2&pid=1-s2.0-S1040619023001033-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139455329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electricity generation and economic performance: On the 2021 Texas power crisis","authors":"Yun Liu ,&nbsp;Liangyi Wang ,&nbsp;Yiming Deng","doi":"10.1016/j.tej.2024.107367","DOIUrl":"10.1016/j.tej.2024.107367","url":null,"abstract":"<div><p><span>Electricity outage during the 2021 Texas power crisis substantively undermines the state’s economy. To evaluate the economic impacts, we empirically provide a baseline estimate for such an outage with a GDP elasticity of electricity generation of 0.62 and detect that electricity generation significantly Granger causes Texas’ GDP but not vice versa. Our investigation reveals that the 2021 power crisis tends to reduce Texas’ GDP by at least 1.44%. Because </span>power system primarily underpins the economy, our findings imply that Texas should utilize various available technological and regulatory options to strengthen its power system to accommodate more resilience.</p></div>","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"37 1","pages":"Article 107367"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139639797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved Transient Performance of a DFIG-Based Wind-Power System Using the Combined Control of Active Crowbars","authors":"Muhammad Arif Sharafat Ali","doi":"10.3390/electricity4040019","DOIUrl":"https://doi.org/10.3390/electricity4040019","url":null,"abstract":"A significant electromotive force is induced in the rotor circuit of a doubly fed induction generator (DFIG) due to its high vulnerability to grid faults. Therefore, the system performance must be increased with appropriate control actions that can successfully offset such abnormalities in order to provide consistent and stable operations during grid disturbances. In this regard, this paper presents a solution based on a combination of an energy storage-based crowbar and a rotor-side crowbar that makes the effective transient current and voltage suppression for wind-driven DFIG possible. The core of the solution is its ability to restrict the transient rotor and stator overcurrents and DC-link overvoltages within their prescribed limits, thereby protecting the DFIG and power converters and improving the system’s ability to ride through faults. Further, the capacity of an energy storage device for transient suppression is estimated. The results confirmed that the proposed approach not only kept the transient rotor and stator currents within ±50% of their respective rated values in severe system faults but also limited the DC-link voltage variations under ±15% of its rated value, achieving transient control objectives precisely and maintaining a stable grid connection during the faults.","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"48 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134901207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Communication System Characteristics on Electric Vehicle Grid Integration: A Large-Scale Practical Assessment of the UK’s Cellular Network for the Internet of Energy","authors":"Mehdi Zeinali, Nuh Erdogan, Islam Safak Bayram, John S. Thompson","doi":"10.3390/electricity4040018","DOIUrl":"https://doi.org/10.3390/electricity4040018","url":null,"abstract":"The ever-increasing number of plug-in electric vehicles (PEVs) requires appropriate electric vehicle grid integration (EVGI) for charging coordination to maintain grid stability and enhance PEV user convenience. As such, the widespread adoption of electric mobility can be successful. EVGI is facilitated through charging stations and empowers PEV users to manage their charging demand by using smart charging solutions. This makes PEV grids assets that provide flexibility to the power grid. The Internet of Things (IoT) feature can make smooth EVGI possible through a supporting communication infrastructure. In this regard, the selection of an appropriate communication protocol is essential for the successful implementation of EVGI. This study assesses the efficacy of the UK’s 4G network with TCP and 4G UDP protocols for potential EVGI operations. For this, an EVGI emulation test bed is developed, featuring three charging parking lots with the capacity to accommodate up to 64 PEVs. The network’s performance is assessed in terms of data packet loss (e.g., the data-exchange capability between EVGI entities) and latency metrics. The findings reveal that while 4G TCP often outperforms 4G UDP, both achieve latencies of less than 1 s with confidence intervals of 90% or greater for single PEV cases. However, it is observed that the high penetration of PEVs introduces a pronounced latency due to queuing delays in the network including routers and the base station servers, highlighting the challenges associated with maintaining efficient EVGI coordination, which in turn affects the efficient use of grid assets.","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"35 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135868210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Industry 4.0 in the electric sector: Findings from a systematic review of the literature","authors":"Wagner Luiz Botnar,&nbsp;Guilherme F. Frederico","doi":"10.1016/j.tej.2023.107337","DOIUrl":"https://doi.org/10.1016/j.tej.2023.107337","url":null,"abstract":"<div><p><span><span>Also known as the Fourth Industrial Revolution<span>, the concept of Industry<span> 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 </span></span></span>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 </span>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.</p></div>","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"36 9","pages":"Article 107337"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138713452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pricing evolution in the Colombian electricity market: Does regulation matter?","authors":"Carolina María Gómez Pérez ,&nbsp;Jorge Barrientos Marín","doi":"10.1016/j.tej.2023.107340","DOIUrl":"https://doi.org/10.1016/j.tej.2023.107340","url":null,"abstract":"<div><p>Electricity pricing<span><span> ($/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 </span>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.</span></p></div>","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"36 9","pages":"Article 107340"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138713461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stronger typhoons, weaker electricity systems? A review of the impacts of extreme weather events on coastal communities and strategies for electric system resilience","authors":"Eireka Orlido Meregillano ,&nbsp;Laurence L. Delina","doi":"10.1016/j.tej.2023.107339","DOIUrl":"10.1016/j.tej.2023.107339","url":null,"abstract":"<div><p><span>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 </span>electric systems<span> 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<span> 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.</span></span></p></div>","PeriodicalId":35642,"journal":{"name":"Electricity Journal","volume":"36 9","pages":"Article 107339"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138626248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}