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Costs of mitigating the environmental impacts of hydropower projects in the United States
Renewable and Sustainable Energy Reviews ( IF 15.9 ) Pub Date : 2020-09-12 , DOI: 10.1016/j.rser.2020.110121
Gbadebo A. Oladosu , Joseph Werble , William Tingen , Adam Witt , Miles Mobley , Patrick O'Connor

Developers are required to mitigate the environmental impacts of hydropower projects in the United States (U.S.) but there is very little accessible information on the associated costs. This study compiles and analyses a dataset of environmental impacts mitigation costs for 182 hydropower projects based on documents obtained from the U.S. Federal Energy Regulatory Commission (FERC). The analysis shows that environmental costs vary wildly across hydropower project classes and mitigation measures, even when normalized by plant capacity. Capital costs per kilowatt are generally higher for relicensed conventional hydropower plants, and lower for new and relicensed pumped storage hydropower plants, relative to other project classes. Smaller plants tend to spend a higher share of total project costs on mitigating environmental impacts than larger plants, and measures related to Aquatic Species, Project Operations, and Recreation have the highest capital cost per kilowatt. These findings mean that environmental costs could become a key decision variable for new hydropower developments in the U.S. due to the small scale of most of the remaining potential and the increasing stringency of environmental requirements. Therefore, technologies to reduce the environmental impacts and costs of hydropower would be important for future project developments.



中文翻译:

减轻美国水电项目对环境的影响的成本

要求开发人员减轻美国水电项目对环境的影响,但是有关相关成本的可访问信息很少。这项研究基于从美国联邦能源管理委员会(FERC)获得的文件,汇总并分析了182个水​​电项目的环境影响缓解成本数据集。分析表明,即使按电厂容量进行了标准化,环境成本在水电项目类别和缓解措施之间也存在巨大差异。与其他项目类别相比,获得许可的常规水力发电厂的每千瓦资本成本通常较高,而新建和获得许可的抽水蓄能水力发电站的每千瓦资本成本较低。与大型工厂相比,小型工厂在减轻环境影响方面花费的项目总费用比例较高,与水生生物,项目运营和娱乐有关的措施的每千瓦投资成本最高。这些发现意味着,由于大多数剩余潜力规模较小,并且环境要求越来越严格,因此环境成本可能成为美国新水电开发的关键决策变量。因此,减少对环境的影响和水电成本的技术对于将来的项目开发至关重要。由于大多数剩余潜力规模较小,并且对环境的要求日益严格。因此,减少对环境的影响和水电成本的技术对于未来项目的发展将非常重要。由于大多数剩余潜力规模较小,并且对环境的要求日益严格。因此,减少对环境的影响和水电成本的技术对于未来项目的发展将非常重要。

更新日期:2020-09-12
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