The comparative effectiveness of residential solar incentives
The comparative effectiveness of residential solar incentives
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DOI：
10.1016/j.enpol.2017.05.032
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发表时间：
2017-09
期刊：
影响因子：
9
通讯作者：
Daniel C. Matisoff;E. Johnson
中科院分区：
文献类型：
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作者：
Daniel C. Matisoff;E. Johnson
我们使用时间和空间变化来评估几乎所有（超过 400 种）国家和公用事业公司促进住宅太阳能光伏 (PV) 电池板安装的激励措施的有效性。我们使用独特的数据集来评估各种太阳能激励措施，包括现金激励、税收抵免和太阳能可再生能源信贷，并使用每种激励措施的标准化净现值来评估和比较激励措施的影响。我们将这些数据与每个州和年份的新建住宅太阳能装置数量进行配对，以研究激励类型与新建住宅光伏装置之间的关系。我们发现，每增加一美元的激励措施，平均每千名住宅用电用户的装机容量就会增加 500 瓦。这种效应是由于净计量和融资可用性的存在而实现的。直接现金激励措施与融资举措和净计量相结合，对安装产生了很大影响。结果与表明激励显着性可能导致有效性变化的研究一致。结果表明，大约 67% 的国家和公用事业激励措施（11 年内高达 19 亿美元）可能用于不增加住宅太阳能光伏安装的激励措施。
We use temporal and spatial variation to evaluate the effectiveness of nearly all (over 400) state and utility incentives that promote the installation of residential solar photovoltaic (PV) panels. Using a unique data set that values a wide array of solar incentives including cash incentives, tax credits, and solar renewable energy credits, we evaluate and compare the impact of incentives using a standardized net present value of each incentive. We pair these data the amount of new residential solar installations within each state and year to examine the relationship between incentive type and new residential PV installations. We find that each additional dollar of incentives has led to on average, an additional 500 W of additional installed capacity per thousand residential electric customers. This effect is enabled by the presence of net metering and financing availability. Direct cash incentives, when coupled with financing initiatives and net metering, drive much of the impact on installations. Results are consistent with research that shows that incentive salience may drive variation in effectiveness. Results suggest that approximately 67% of state and utility incentives, up to $1.9 billion over 11 years, were likely spent on incentives that did not increase residential solar PV installations.