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1.
通过建立ARIMA预测模型对现货电价进行预测,并对ARIMA模型存在的异方差问题通过GARCH模型进行修正。实证算例中,采用北欧四国电力市场数据,与ARIMA和灰色GM(1,1)模型进行比较,表明ARIMA—GARCH模型的预测精度更高,预测误差更小。  相似文献   

2.
    
Investor-owned utilities (IOUs)serving multiple states are subject to multiple publicservice (utility) commission (PSC) regulation. Focusing on relative rates of an IOU across PSCsisolates regulatory effects. This analysis examines38 such multistate IOUs from 1995. For theresidential-commercial customer comparison, electedPSC commissioners, Republican-appointed commissioners,PSC jurisdiction over municipally-owned utilities (anindirect IOU competitor), and IOU home-state statusare associated with a higher relative rate, whereasmore PSC employees per capita and population densityare associated with a lower relative rate. Thecommercial-industrial comparison results are largelyreversed, but are similarly robust.  相似文献   

3.
吴荣章 《电力技术经济》2005,17(5):35-37,41
以 A 省为例,列举了我国现行销售电价在引导客户合理可靠用电方面的不合理之处,系统分析了现行销售电价时客户侧合理可靠用电所形成的不利导向,提出了以进一步引导促进客户合理可靠用电为目标的改革销售电价体系的具体建议。  相似文献   

4.
电力定价的几个经济学问题探讨   总被引:4,自引:1,他引:4  
电价是高或低,如何看待,本文就电力定价的几个经济学问题进行了探讨。  相似文献   

5.
2011年以来,在国际经济疲软和国内宏观调控的双重影响下,全国电力需求增速呈逐步回落态势。受电煤供应不足和来水偏枯影响,全国大部分省份出现电力供应缺口。预计2012年,随着宏观政策的预调、微调,我国经济增速出现大幅下滑的可能性较小,电力需求也不会出现像2008、2009年那样的明显回落。但由于煤电联动价格机制尚未解决,跨区输电项目滞后,加上水电来水的不确定性,2012年电力供需形势依然偏紧,电力缺口有可能进一步扩大。  相似文献   

6.
2011年,我国经历了自2004年以来的最大一次“电荒”,其成因很多,但电价不合理是导致此次电荒的最主要原因之一。分析了电价水平不合理和电价机制不完善对电荒的诱导性作用,并从价格改革方面提出了继续完善煤电价格联动机制、对电煤价格实施科学调控、完善各类电源上网电价政策和跨区跨省电量交易价格机制的应对措施。  相似文献   

7.
This paper examines the performance of panel data models in measuring cost-efficiency of electricity distribution utilities. Different cost frontier models are applied to a sample of 59 utilities operating in Switzerland from 1988 to 1996. The estimated coefficients and inefficiency scores are compared across different specifications. The results indicate that while the average inefficiency is not sensitive to the econometric specification, the efficiency ranking varies significantly across models. The reasonably low out-of-sample prediction errors suggest that panel data models can be used as a prediction instrument in order to narrow the information gap between the regulator and regulated companies.  相似文献   

8.
9.
有关我国电价改革的几点探讨   总被引:1,自引:4,他引:1  
价格机制是市场机制的核心,科学合理的电价机制能够有效反映电力供需关系并实现电力资源的优化配置。以上网电价、输配电价和销售电价3个环节的电价为研究对象,从电价水平、电价形成机制和电价管理体制等方面探讨了现行电价机制中存在的一些主要问题。最后对今后的电价改革工作提出了相应的建议与设想。  相似文献   

10.
结合目前即将启动的新一轮电价改革,就其中可能涉及的有关问题从输配电价制定、上网竞价、终端市场定价、涨价因素消化、电价补贴5个方面进行了探讨,并提出了合理确定输配电价、做好上网电价管理、逐步理顺销售侧电价、缓解电价交叉补贴问题、加快电力法律法规修订等建议。  相似文献   

11.
分析了近期电煤供需偏紧的直接原因,一是经济企稳回升,用电量大幅增长;二是水力发电量明显下降,电力电量平衡对火力发电的依赖程度加深;三是电煤供应持续低于需求。但电煤供需偏紧的根本原因一是煤电价格机制不顺,二是我国能源运输体系不合理。根据当前电力生产形势,对电力公司和政府提出了相关建议。  相似文献   

12.
电力市场中可中断电价机制设计   总被引:1,自引:0,他引:1  
推行需求例管理需落实到制定合理的电价机制。研究了目前国内电力紧缺形势下的可中断电价,借鉴国内外已有的可中断电价体系,对目前电力经济形势下的可中断电价机制进行创新。规范了可中断电价含义,通过推算折扣或合理补偿电价2种计价方式,设计合理的电价优惠计算方法,从而进一步完善可中断电价机制的设计。通过对上海市可中断电价进行案例分析,为上海市未来可中断电价实施提供理论支撑。  相似文献   

13.
2010年,在经济超预期增长的带动下,全国电力需求实现恢复性增长,全年增长14.6%,其中第二产业尤其是主要高耗能行业用电的大幅反弹是拉动全社会用电增长的主要动力;装机增长平稳,全国电力供需总体平衡,但局部地区部分时段因电煤供应和来水不足,电力供应紧张。2011年,国内经济在平稳较快发展的同时增速回调,电力需求仍将保持较快增长但增速将有所回落,预计增速为10%~12%;受电煤供应、来水等因素的影响,全国电力供需平衡偏紧。  相似文献   

14.
To evaluate the impact of regulation on the innovativeness of firms, this studyconsiders the unusual case of electric utilities in the state of Texas. In the currentera of deregulation, the electric utility industry in Texas is unique because itsregulation was relatively limited until 1975, after which time Texas legislatorsimposed rate-of-return regulation. Utilizing a translog cost framework on annualdata covering the years 1965 to 1985, this study is thus able to compare the rateof technological change both before and after the imposition of rate-of-returnregulation. The findings indicate that before the implementation of rate-of-returnregulation, costs decreased significantly because of technological progress. Afterthe implementation, however, the findings indicate that costs increased significantlydue to technological regress brought on by regulation.  相似文献   

15.
我国城市供水需求侧管理与水价体系研究   总被引:1,自引:0,他引:1  
水资源的稀缺性使得水需求侧管理成为城市供水规制的重要内容。本文对水需求侧管理与水价体系的关系进行了实证的检验。结果表明,价格水平与价格结构均对人们的水需求产生了显著的影响。这意味着在我国水价体系可以作为水需求侧管理的主要手段以激励人们节约用水。本文进一步考察了水价的影响因素,并提出了水价体系改革的建议。  相似文献   

16.
    
This paper focuses on the emergence and growth of sustainable industries, specifically analyzing the rise of the wind energy industry in California. Based on a favorable institutional environment and the presence of abundant natural capital, the wind energy industry took root and flourished in California during the last two decades. This paper analyzes this phenomenon by exploring the determinants of where and when wind energy projects would be established. Findings suggest that in locations where natural, social, and economic influences converged, greater wind energy activity followed. The paper advances a simple framework that uses natural capital, site specificity, and institutional environments to predict which sustainable industries will enjoy growth in coming decades. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献   

17.
We study in this paper the effects of volume flexibility, delivery flexibility and operational decision flexibility in operational supply chain planning under uncertain demand. We use a rolling schedule to plan supply chain operations for a whole year. The planning horizon is 4 weeks with deterministic demand in the first week and predicted for the following 3 weeks. Using a case from the Norwegian meat industry, we compare the annual operating results of using a two-stage stochastic programming model to the deterministic expected value problem in order to discuss the impact of flexibility in the supply chain.  相似文献   

18.
19.
制度互补与电力市场化改革   总被引:3,自引:0,他引:3  
我国电力改革选择了从发电环节的改革开始,经重组国家电力公司、实行厂网分离,到实行电价改革的渐进式策略。这一策略虽然因其速度缓慢、终端用户无法分享改革利益而备受批评,但它使社会付出了较低的“无序成本”。随着供求关系的缓解.电力产业应强化制度互补作用,尽快改变改革在发电、输电、配电、售电各个环节之间进展不平衡的状况,着力实现配电和售电分离。在售电环节引入竞争机制.探索与市场化改革相适应的监管体制和交易方式,解决电源结构不合理、电力发电输电配电效率低、负外部性等深层次问题,最终建立有效监管的电力市场.使市场在电力资源的配置上发挥更大作用。  相似文献   

20.
巴西电力工业和电价改革及对我国的启示   总被引:2,自引:1,他引:2  
李英 《电力技术经济》2006,18(6):23-27,47
文章在简要叙述了巴西电力工业基本情况的基础上,分析了巴西电力体制改革的起因、改革的法制框架和电力市场模式,介绍了巴西各环节电价形成机制情况,最后提出了巴西有关改革对我国的借鉴意义.  相似文献   

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