分布式光伏需求侧发电:电力公司的经济评估

G. Leng, J. Martín
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引用次数: 8

摘要

从电力公司的角度来看,分布式光伏需求侧发电(PV-DSG)系统可以用与其他需求侧管理(DSM)技术类似的方式进行评估。本研究评估PV-DSG系统的经济效益,使用每小时的公用事业成本和性能数据,作为公用事业负荷持续时间曲线(LDC)的函数。分析的重点是一个公用事业,新英格兰电力系统(NEES),美国。本研究使用了1991年实际公用事业每小时系统负荷数据和相应的2.2千瓦(DC)并网住宅光伏系统的光伏输出数据,该系统是NEES Gardner项目的一部分。NEES的加权平均资本成本为8.78%,计算出的能源和容量效益值相当于允许安装的光伏系统成本为2.41美元/瓦。3%的社会贴现率意味着更高的每瓦安装成本(4.72美元)。允许的安装成本越高,光伏产业就越容易进入公用事业市场。这些结果用图形表示为一个目标,以强调公用事业目标市场对光伏产业的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distributed photovoltaic demand-side generation: an economic evaluation for electric utilities
From an electric utility's viewpoint, distributed photovoltaic demand-side generation (PV-DSG) systems can be evaluated in a similar manner to other demand-side management (DSM) technologies. This study evaluates the economic benefits of PV-DSG systems, using hourly utility cost and performance data, as a function of the utility's load duration curve (LDC). The analysis focuses on one utility, New England Electric System (NEES), USA. Actual utility hourly system load data for 1991 and corresponding PV output data from a 2.2 kW (DC) grid-connected residential PV system, installed as part of the NEES Gardner project, are used for this study. At NEES's weighted average cost of capital of 8.78% the energy and capacity benefit values calculated equate to an allowable installed PV system cost of $2.41/watt. A social discount rate of 3% allows for an even higher installed cost-per-watt figure of $4.72. The higher the, allowable installed cost, the easier it will be for the PV industry to enter the utility market. These results are represented graphically as a target to emphasize the importance of the utility target market to the PV industry.
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