共查询到20条相似文献，搜索用时 0 毫秒
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All utility customers can benefit from non-residential customers who adopt and operate distributed energy resources in a manner that produces both private and system benefits. But current rate designs do not encourage this, because they focus on a single interval of usage, not all intervals. This article proposes smart non-residential rate design principles that better align customer choice with system benefits and thus lower costs and induce efficient adoption and use of advanced technologies. 相似文献
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Weijia LIU Fushuan WEN Yusheng XUE 《Journal of Modern Power Systems and Clean Energy》2017,5(3):439-450
Regarded as a long-term, large capacity energy storage solution, commercialized power-to-gas（PtG） technology has attracted much research attention in recent years.PtG plants and natural gas-fired power plants can form a close loop between an electric power system and a natural gas network. An interconnected multi-energy system is believed to be a solution to the future efficient and environmental friendly energy systems. However, some crucial issues require in-depth analysis before PtG plants can be economically implemented. This paper discusses current development status and potential application of PtG plants in the future interconnected multi-energy systems, and further analyzes the costs and benefits of PtG plants in different application scenarios. In general, the PtG plants are not economical efficient based on current technologies and costs. But the situation is likely to change with the development of PtG technologies and interconnected operation of gas-electricity energy system. 相似文献
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《The Electricity Journal》2021,34(9):107029
This study addresses the question of how the electricity grid can best be priced, in the context of disruptive technologies, increasing decentralisation of the power sector and new business models. The emergence of business models can affect the design of tariffs, but at the same time, tariff design can trigger new business models as they can nudge adoption towards certain technologies. Network tariffs have traditionally been established using a cost accounting method. Due to its cost structure, network tariffs are second best constructs, as marginal cost pricing does not lead to cost recovery. Second best solutions, in all probability, will overcompensate some inputs which in turn will be overused (the Averch-Johnson effect). New distributed energy technologies that perform better in these overcompensated inputs will therefore see a higher penetration in the market. Penetration of some technologies over others in a previously monolithic vertically integrated power sector will open up new customer needs and therefore business opportunities. Each resulting business opportunity would make use of the grid differently from which it was originally conceived, and at one extreme, they can bypass it altogether. We provide a framework of analysis that leads to the pricing of the services provided by the electricity grid for each new business opportunity. 相似文献
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Joe Kaatz 《The Electricity Journal》2017,30(9):6-13
Distributed energy resources present opportunities to serve grid and customer need through two-way power flow. New values, methods, and planning are required to efficiently interconnect and utilize DERs. This paper analyzes New York’s and California’s DER proceedings to provide a comparison of the similarities and differences between these and other states that will result in different levels of deployments and valuations of DERs. 相似文献
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《The Electricity Journal》2021,34(4):106932
Deployment of distributed energy resources (DERs) is accelerating across the United States. These assets have the potential to provide cost-effective grid services and bulk power while supporting a low-cost energy transition to carbon-free electricity. Full integration of these resources into the bulk power system remains a barrier to unlocking the potential value of these assets. The regional wholesale energy markets, originally designed to integrate centralized, dispatchable power plants, must be reformed to adapt to the changing potential resource mix. The current day-ahead and real-time system is poorly designed for DERs. Day-ahead DER forecast errors create exposure to real-time price variations, as resources committed in the day-ahead market are required to rebalance in real-time, challenging the business model for DERs. New intraday markets with multiple discrete intermediate auctions between the day-ahead market and real-time market are needed to enable proper integration of DERs and efficient mitigation of forecast uncertainty risk. These markets must incorporate financially-binding commitments, closer-to-dispatch price signals, and adequate liquidity to ensure competition. Intermediate auctions should be built on top of existing intraday processes in each regional market, incorporating the principles of the existing market structures and leveraging the benefits of the centralized dispatch systems. Regional transmission organization (RTOs) and Independent System Operators (ISOs) should pursue and implement intermediate auctions to support fair, open, and efficient markets in the U.S. 相似文献
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Paul Zummo 《The Electricity Journal》2018,31(4):48-50
Distributed energy resources and electrification are countervailing trends in the electricity business. DER challenges the traditional electric utility business model, while electrification presents new opportunities for the economy, for the environment, and for utilities. Both of these new developments highlight the importance of the electric grid, and the critical need for utilities to manage this integrated grid of the future. 相似文献
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华中电网输电线路利用份额计算 总被引：4，自引：3，他引：4
输电定价的过程可以看作是电网费用在输电系统用户间的分摊过程.因此,了解各输电用户对输电线路的利用份额便成为计算输电电价的关键.结合华中电网的运行特性,文章分别采用潮流分析方法与交易合同分析方法计算了华中主网线路的利用份额.计算结果表明,在确保公平、公正和与实际操作相衔接的条件下,利用后一种方法可取得较为理想的效果,可为进一步计算输电电价提供可靠依据. 相似文献
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本文结合东北电网实际,介绍了二部制电价及峰谷丰枯电价的算法,通过对２００５年东北电网电价结构分析,说明只有改革电价结构,调峰水电才有生命力。 相似文献
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应用随机生产模拟制定联网互供电价初探 总被引：1，自引：0，他引：1
本在随机生产模拟理论的基础上结合边际成本的概念，采用均分联网节约效益的思想，初步探讨了互联电力系统交换电量的电价核算方法及原则。本还用削峰运行和引进电量分配因子，使水电模拟更为准确。本的核心是应用全解析的随机生产根据理论计算各类机组的详细出力过程。 相似文献
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为了提高电网能源多层次优化调度效率,对分层和总体架构展开设计,并建立优化调度模型。利用优化调度模型并结合遗传算法来构建求解模型,采用MATLAB仿真软件测试了分层优化方法对系统分布式设备的效果,优化结果表明:在区域边际成本比电价低的情况下,则对配网进行售电。区域3具有较低的发电成本,使其跟上级配电网大部分时间具有正的交换功率,区域3对配网实施售电获得利润3。区域3优化调度电能供需运行功率好交换功率,除了在10:00～14:00时间之外,微型燃气轮机都保持满发的状态。该区域在许多时段都是从配网中购入电量后再提供给用户,从而达到降低经济成本的目的。 相似文献
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发电集团信息化发展探讨 总被引：2，自引：0，他引：2
章以发电集团为研究对象，讨论和分析了在市场化逐步完善的过程中，发电集团总部在信息化方面的需求和发展方向，依据这些需求并结合信息系统的发展规律，在分析了信息化的建设目标和原则、人员组织、信息化需求的基础上提出了发电集团总部的信息化方案设想(包括网架结构、应用系统结构、信息系统安全和信息系统备份等)以及具体的实施步骤。 相似文献
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Dev Tayal 《The Electricity Journal》2017,30(3):23-29
Innovations in energy products and services, facilitated through effective partnerships with research centers, may provide benefits to utilities across the value chain. Policy implications could be significant in shifting from traditional regulatory models to flexible frameworks that encourage innovation. A collaborative mindset will be needed to ensure utilities recognize the role they must also play in guiding regulatory reform. 相似文献
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Effective electricity grid management and planning necessitates widespread installation of convenient data acquisition modules to obtain the relevant grid data in a timely manner. In this paper, we describe a ubiquitous Web-based dispatcher information system deployed on the Turkish electricity transmission grid. This large-scale system is utilized by the transmission system operator to effectively monitor the transmission grid and to analyze and summarize the gathered data automatically, in order to take proper short-term and long-term operational decisions. The system has the additional facilities to produce load forecasts and track long-term investment plans on the electricity grid. The architecture of the implemented system is described in details together with the demonstration of sample significant analysis and forecast results obtained from the system. 相似文献
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Yinping Yang Chao Qin Yuan Zeng Chengshan Wang 《Journal of Modern Power Systems and Clean Energy》2022,10(1):192-203
Although wind and solar power is the major reliable renewable energy sources used in power grids, the fluctuation and unpredictability of these renewable energy sources require the use of ancillary services, thereby increasing the integration cost. This study proposes a wind, solar, and pumpedstorage cooperative（WSPC） model that can be applied to largescale systems connected to dispersed renewable energy sources.This model provides an optimized coordinated bidding strategy in the day-ahead market, along with a method to facilitate revenue distribution among participating members. This model takes advantage of the natural complementary characteristics of wind and solar power while using pumped storage to adjust the total output power. In the coordinated bidding strategy, a proportion of the energies is provided as firm power, which can lower the ancillary service requirement. Moreover, a multi-period firm power-providing mode is adopted to reflect the wind-solar output characteristics of each period accurately. The duration of each period is selected as a variable to accommodate seasonal characteristics. This ensures that the provision of firm power can maintain a high proportion under varied connected ratios of wind-solar, thereby obtaining higher revenue. By using the revenue distribution method, the short-term influencing factors of the cooperative model are considered to provide the economic characteristics of wind farms and photovoltaic stations.In this way, revenue distribution can be fairly realized among the participating members. Finally, the effectiveness and economy of the proposed model are validated based on actual data obtained from the power grid in California, USA. 相似文献
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We offer an economic framework for analyzing the compensation that DERs should receive for energy exported to the grid. This economic framework requires that the prices paid to DER owners be based upon the forward-looking, economic costs that their utility avoids when it buys the energy from the customer. We explain why this results in efficient ‘build or buy’ and ‘purchase and install’ decisions of the utility and DER customer, respectively. 相似文献
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关于缺电问题的研究与对策 总被引：3，自引：2，他引：3
我国近两年来大部分省市缺电,对国民经济的快速发展和人民生活的提高产生了不利的影响.本文研究了国内外有关电源充裕度的理论和实践经验,建议用容量费与双边期货合同相结合的办法来解决电源充裕度问题.由于中、长期负荷预计存在不确定性,应当由用电单位与发电公司合理分担风险. 相似文献
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Traditionally, power system balancing operations consist of three consecutive control techniques, namely security-constrained unit commitment (SCUC), security-constrained economic dispatch (SCED), and automatic generation control (AGC). Each of these have their corresponding type of operating reserves. Similarly, energy storage resources (ESRs) may be integrated as energy, load following, or regulation resources. A review of the existing literature shows that most ESR integration studies are focused on a single control function. In contrast, recent work on renewable energy integration has employed the concept of enterprise control where the multiple layers of balancing operations have been integrated into a single model. This paper now uses such an enterprise control model to demonstrate the relative merits of load following reserves and energy storage integrated into the resource scheduling and balancing action layers. The results show that load following reserves and energy storage resources mitigate imbalances in fundamentally different ways. The latter becomes an increasingly effective balancing resource for high net-load variability and small day-ahead market time step. 相似文献
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电力市场技术支持系统一体化结构的研究与实现 总被引：8，自引：1，他引：8
阐述了在建立电力市场技术支持系统时,如何利用已有能量管理系统(EMS)和数据采集和监视控制(SCADA)系统的软硬件资源的问题.在开发辽宁电力市场技术支持系统的基础上,提出了技术支持系统与EMS/SCADA一体化结构的概念.介绍了采用该结构的辽宁电力市场技术支持系统的执行流程和在实际应用中该系统的优势.同时对与技术支持系统相关的EMS/SCADA系统中的调度员潮流、阻塞管理和自动发电控制(AGC)等软件的改造进行了探讨. 相似文献