电动汽车研究
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电动汽车研究
Posted2018年11月27日 by &

EEA报告确认:电动汽车更好地适合气候和空气质量

Batteryelectric cars emit less greenhouse gases and air pollutants over their entire life cycle than petrol and diesel cars, according to a European Environment Agency (EEA) report, published today. Promoting renewable energy and circular economy — including the shared use of vehicles and product design that supports reuse and recycling — will help maximise the benefits of shifting to electric vehicles. For more information see the亚博体育report onSecond Life Electric Vehicle Batteries 2019-2029电工实习ic Vehicles 2018-2038.
The EEA report 'Electric vehicles from life cycle and circular economy perspectives' reviews current evidence on electric cars' impacts on climate change, air quality, noise and ecosystems, compared with conventional cars.
Already now, across its life cycle, a typical electric car in Europe produces less greenhouse gases and air pollutants compared with its petrol or diesel equivalent. Emissions are usually higher in the production phase of electric cars, but these are more than offset by lower emissions in the use phase over time.
The report confirms that the greenhouse gas emissions of electric vehicles, with the current EU energy mix and over the entire vehicle life cycle, are about 17-30 % lower than the emissions of petrol and diesel cars. However, as the carbon intensity of the EU energy mix is projected to decrease, the life-cycle emissions of a typical electric vehicle could be cut by at least 73 % by 2050.
For local air quality, electric vehicles also offer clear benefits, mainly due to zero exhaust emissions at street level. However, even electric vehicles emit particulate matter from road, tyre and break wear, the report reminds. Shifting to electric vehicles could also reduce noise pollution, especially in cities where speeds are generally low and traffic often stands still.
The result of the comparison is less favourable for electric cars when looking at the current impacts of their production on ecosystems and the toxicity of the materials involved. These impacts are mostly due to the extraction and processing of copper, nickel and critical raw materials. The report suggests that these impacts could be minimised through a circular economy approach that facilitates reuse and recycling — especially of batteries.
EEA还发布了有关运输环境和气候影响的新简报。根据简报,该行业的温室气体排放量自2014年以来一直在增加。2017年的初步估计使欧盟运输排放量比1990年的水平高出28%,这表明该行业目前尚未达到长期的目标气候目标。
Transport also continues to be a significant source of air pollution, especially of particulate matter and nitrogen dioxide, and the main source of environmental noise in Europe, the briefing notes.
Other key findings:
  • Preliminary data show that average CO2 emissions of new passenger cars in the EU increased by 0.4 % in 2017. This was the first time the average emissions increased since the monitoring started in 2010. By contrast, average CO2 emissions from new light commercial vehicles continued to fall in 2017, showing the largest annual decrease (7.7 g CO2/km) since 2012.
  • Registrations of battery electric vehicles increased by 51 % in 2017, comprising 0.6 % of all new registrations in the EU. Registrations of plug-in hybrid electric vehicles increased by 35 %, comprising 0.8 % of new registrations.
  • In 2017, petrol cars became more popular (53 % of new registrations) than diesel cars (45 %) for the first time since the monitoring started.
  • 减少运输中的石油消耗仍然是一个挑战,欧盟在运输中可再生能源的份额仍远低于2020年的10%目标,仅考虑到符合特定可持续性标准的生物燃料。到目前为止,只有两个欧盟成员国(奥地利和瑞典)达到了10%的目标。
资料来源:欧洲环境局
Top image: Union of Concerned Scientists
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