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Overlapping Environmental Policies and the Impact on Pollution

机译:重叠的环境政策及其对污染的影响

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This paper examines how increases in renewable generation interact with market-based environmental regulations to affect the emissions of both regulated and unregulated pollutants. Using a simple analytical model, I first demonstrate that, when combined with a cap-and-trade program, expansions in renewable generation have the potential to cause an undesirable outcome-they can increase emissions of unregulated pollutants. To explore whether this unintended increase in unregulated pollution could occur in practice, I look back at a NOx cap-and-trade program that was in place in the eastern United States from 2009 through 2014-the EPA's Clean Air Interstate Rule. Using hourly generation and emissions data, I estimate how unregulated emissions of CO_2 and SO_2 would have been affected by adding new wind turbines and solar panels in the presence of a binding cap on NO_X. I show that, once the interaction with the NO_X cap is taken into consideration, renewable capacity additions would have offset much less CO_2 than was previously thought. Moreover, I find that the renewable additions would have increased SO_2 emissions.
机译:本文研究了可再生能源发电量的增加如何与基于市场的环境法规相互作用,从而影响受管制和不受管制污染物的排放。我首先使用一个简单的分析模型来证明,当与总量管制和交易计划结合使用时,可再生能源发电的扩张有可能导致不良后果-它们会增加未管制污染物的排放。为了探究这种不加管制的污染是否会在实践中发生,我回顾了自2009年至2014年在美国东部实施的氮氧化物上限与交易计划,即EPA的《清洁空气州际规则》。使用每小时的发电量和排放量数据,我估计在NO_X上存在约束性上限的情况下,通过添加新的风力涡轮机和太阳能电池板,将如何影响未控制的CO_2和SO_2排放。我表明,一旦考虑到与NO_X上限的相互作用,增加可再生能源容量所产生的CO_2抵消量将比以前想象的要少得多。此外,我发现可再生能源的添加会增加SO_2的排放。

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