Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa815e |
Was it worthwhile? Where have the benefits of rooftop solar photovoltaic generation exceeded the cost? | |
Vaishnav, Parth; Horner, Nathaniel; Azevedo, Ines L. | |
2017-09-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We estimate the lifetime magnitude and distribution of the private and public benefits and costs of currently installed distributed solar PV systems in the United States. Using data for recently-installed systems, we estimate the balance of benefits and costs associated with installing a non-utility solar PV system today. We also study the geographical distribution of the various subsidies that are made available to owners of rooftop solar PV systems, and compare it to distributions of population and income. We find that, after accounting for federal subsidies and local rebates and assuming a discount rate of 7%, the private benefits of new installations will exceed private costs only in seven of the 19 states for which we have data and only if customers can sell excess power to the electric grid at the retail price. These states are characterized by abundant sunshine (California, Texas and Nevada) or by high electricity prices (New York). Public benefits from reduced air pollution and climate change impact exceed the costs of the various subsidies offered system owners for less than 10% of the systems installed, even assuming a 2% discount rate. Subsidies flowed disproportionately to counties with higher median incomes in 2006. In 2014, the distribution of subsidies was closer to that of population income, but subsidies still flowed disproportionately to the better-off. The total, upfront, subsidy per kilowatt of installed capacity has fallen from $5200 in 2006 to $1400 in 2014, but the absolute magnitude of subsidy has soared as installed capacity has grown explosively. We see considerable differences in the balance of costs and benefits even within states, indicating that local factors such as system price and solar resource are important, and that policies (e.g. net metering) could be made more efficient by taking local conditions into account. |
英文关键词 | distributed energy solar photovoltaics energy subsidies energy and pollution climate change benefit cost analysis |
领域 | 气候变化 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000410833600002 |
WOS关键词 | INORGANIC PM2.5 ; HEALTH ; EMISSIONS ; IMPACTS ; PV |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30982 |
专题 | 气候变化 |
作者单位 | Carnegie Mellon Univ, Dept Engn & Publ Policy, 5000 Forbes Ave, Pittsburgh, PA 15213 USA |
推荐引用方式 GB/T 7714 | Vaishnav, Parth,Horner, Nathaniel,Azevedo, Ines L.. Was it worthwhile? Where have the benefits of rooftop solar photovoltaic generation exceeded the cost?[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(9). |
APA | Vaishnav, Parth,Horner, Nathaniel,&Azevedo, Ines L..(2017).Was it worthwhile? Where have the benefits of rooftop solar photovoltaic generation exceeded the cost?.ENVIRONMENTAL RESEARCH LETTERS,12(9). |
MLA | Vaishnav, Parth,et al."Was it worthwhile? Where have the benefits of rooftop solar photovoltaic generation exceeded the cost?".ENVIRONMENTAL RESEARCH LETTERS 12.9(2017). |
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