Using integrated assessment models, we calculate the economic value of the extraordinary decline in emissions from US power plants. Annual local and global air pollution damages fell from 245 to 133 billion USD over 2010–2017. Decomposition shows changes in emission rates and generation shares among coal and gas plants account for more of this decline than changes in renewable generation, electricity consumption, and damage valuations. Econometrically estimated marginal damages declined in the East from 8.6 to 6 cents per kWh. Marginal damages increased slightly in the West and Texas. These estimates indicate electric vehicles are now cleaner on average than gasoline vehicles.

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发电造成的空气污染显着下降的分解和政策后果

使用综合评估模型，我们计算了美国发电厂排放量显着下降的经济价值。与 2010 年至 2017 年相比，每年的本地和全球空气污染损失从 245 美元下降到 1330 亿美元。分解表明，与可再生能源发电、电力消耗和损害估值的变化相比，煤炭和天然气发电厂的排放率和发电份额的变化对这种下降的影响更大。东部的计量经济学估计边际损失从每千瓦时 8.6 美分下降到 6 美分。西部和德克萨斯州的边际损失略有增加。这些估计表明，电动汽车现在平均比汽油汽车更清洁。