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CO2 Mitigation Potential of Plug-in Hybrid Electric Vehicles larger than expected

机译：插电式混合动力汽车的CO2减排潜力大于预期

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The actual contribution of plug-in hybrid and battery electric vehicles (PHEV and BEV) to greenhouse gas mitigation depends on their real-world usage. Often BEV are seen as superior as they drive only electrically and do not have any direct emissions during driving. However, empirical evidence on which vehicle electrifies more mileage with a given battery capacity is lacking. Here, we present the first systematic overview of empirical findings on actual PHEV and BEV usage for the US and Germany. Contrary to common belief, PHEV with about 60 km of real-world range currently electrify as many annual vehicles kilometres as BEV with a much smaller battery. Accordingly, PHEV recharged from renewable electricity can highly contribute to green house gas mitigation in car transport. Including the higher CO2eq emissions during the production phase of BEV compared to PHEV, PHEV show today higher CO2eq savings then BEVs compared to conventional vehicles. However, for significant CO2eq improvements of PHEV and particularly of BEVs the decarbonisation of the electricity system should go on.
机译：插电式混合动力和电池电动汽车（PHEV和BEV）对减少温室气体的实际贡献取决于其实际使用情况。 BEV通常被认为是优越的，因为它们仅电动行驶，并且在行驶过程中没有任何直接排放物。但是，缺乏关于在给定电池容量下哪个车辆可以使更多里程行驶的经验证据。在这里，我们将对美国和德国实际使用PHEV和BEV的经验发现进行系统的首次综述。与通常的看法相反，PHEV的真实行驶里程约为60公里，而电动汽车的年行驶里程与电池较小的BEV一样多。因此，可再生能源充电的插电式混合电动汽车可以极大地减轻汽车运输中的温室气体排放。包括在BEV生产阶段比PHEV更高的CO2eq排放量，如今的PHEV显示，与BEV相比，与传统车辆相比，其CO2eq节省量更高。但是，为使PHEV特别是BEV的CO2eq显着提高，电力系统的脱碳应继续进行。

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