Dataset - Solar Photovoltaics on College Campuses: An Analysis of the Impact of the Inflation Reduction Act

Data corresponding to a geospatial analysis of the impact of the Inflation Reduction Act on solar feasibility at higher education institutions.Columns:INSTNM - Institution Name from IPEDSCITY - City of institution from IPEDSSTABBR - State of institution from IPEDSCreditBaseline - IRA Direct Pay Incentive estimate as a decimal (e.g., 0.30 corresponds to a 30% credit)YearlyEstimatedSavings - Yearly Estimated Savings, in US Dollars, approximated from NREL solar resource data. Assumes an 80 kW array.ANNUALAVG - Average daily solar resource data from NREL in Wh/m^2/day for the campus location given in IPEDS. Averaged over a year.EstimatedReturnRate - Estimated return rate on investment assuming $2.00/installed Watt of DC solar, 0.2 panel efficiency, 0.8 system efficiency, 12 cents/kWh, the tax credit for the institution as estimated from DoE data, and solar resource given by NREL data. (e.g., 0.11 corresponds to 11%). Data Provenance:College and University data comes from IPEDS, the Integrated Postsecondary Education Data System. In particular, school locations are from Directory information, institutional characteristics, 2022.Solar Resource data comes from NREL's RE Atlas.Energy Community data comes from the US DoE: Coal Closure Data 2024 and MSAs and Non-MSAs and their fossil fuel employment (FFE) and energy community status as of June 7, 2024.State line shape file data: 2018 US state 500k.School data was spatially joined with solar resource data to estimate the potential for solar power on each campus. The resulting data was then spatially joined with the DoE's energy community data to inform the tax credit available to each institution. Brownfield data is not included.

本数据集对应《通胀削减法案》（Inflation Reduction Act）对高等教育机构太阳能部署可行性影响的地理空间分析相关数据。
字段说明如下：
1. INSTNM：源自高等教育集成数据系统（IPEDS, Integrated Postsecondary Education Data System）的院校名称；
2. CITY：源自IPEDS的院校所在城市；
3. STABBR：源自IPEDS的院校所在州简称；
4. CreditBaseline：《通胀削减法案》直接支付激励额度的小数形式估算值（例如0.30对应30%的税收抵免比例）；
5. YearlyEstimatedSavings：年度预估节省金额（单位：美元），基于美国国家可再生能源实验室（NREL, National Renewable Energy Laboratory）太阳能资源数据估算，假设部署80kW光伏阵列；
6. ANNUALAVG：源自NREL的院校所在场地年均每日太阳能资源数据，单位为Wh/m²/天，为全年平均值；
7. EstimatedReturnRate：基于以下参数估算的太阳能投资回报率：每直流千瓦装机成本2.00美元、光伏面板转换效率0.2、系统能效0.8、售电电价12美分/kWh、基于美国能源部（DoE, Department of Energy）数据估算的院校可获得税收抵免比例，以及NREL提供的太阳能资源数据（例如0.11对应11%的回报率）。

数据来源说明：
1. 院校数据源自IPEDS，具体为2022年版院校目录信息与院校特征数据集；
2. 太阳能资源数据源自NREL可再生能源地图集（RE Atlas）；
3. 能源社区数据源自美国能源部：2024年煤矿关闭数据集，以及截至2024年6月7日的都会统计区（MSAs）、非都会统计区的化石燃料就业（FFE）规模与能源社区身份认定数据；
4. 州界形状文件数据：2018年美国50万比例尺州界矢量数据。

数据处理流程：
本数据集先将院校数据与太阳能资源数据进行空间连接，以估算各院校校区的太阳能发电潜力；随后将生成的数据集与美国能源部的能源社区数据进行空间关联，以确定各院校可适用的税收抵免额度。本数据集未包含棕地相关数据。