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EVs in China produce two to five times the amount of smog as gas vehicles, because the supporting energy mix is so dirty. https://www.scientificamerican.com/ar
by brownbat 9y ago
EVs in China produce two to five times the amount of smog as gas vehicles, because the supporting energy mix is so dirty.
https://www.scientificamerican.com/article/in-coal-powered-china-electric-car-surge-fuels-fear-of-worsening-smog/ https://www.scientificamerican.com/article/in-coal-powered-c...
Should be good long term, if China realizes other energy sourcing goals, just... EVs alone don't fix everything.
- EngineerBetter 9y agoHow old is the linked article? China appears to doubling its solar power capacity every year: https://en.wikipedia.org/wiki/Solar_power_in_China https://en.wikipedia.org/wiki/Solar_power_in_China also: https://youtu.be/T4LheD1l2c4?t=723 https://youtu.be/T4LheD1l2c4?t=723
- Brakenshire 9y agoIt is only the last year or two that coal consumption has fallen, it is still at a very high level, and high penetration of the market. Although you're right in the medium to long term.
- melling 9y agoChina has 20 nuclear plants under construction: http://www.scmp.com/business/companies/article/2107354/china-pips-us-race-start-worlds-most-advanced-nuclear-power-plant http://www.scmp.com/business/companies/article/2107354/china... The new AP1000s are almost done. Hopefully they get the costs under control so they can build 100 of them. Bill Gates’ Terrapower is developing the next gen plants in China: https://www.forbes.com/sites/jamesconca/2015/10/02/bill-gates-forges-nuclear-deal-with-china/#ce496042c129 https://www.forbes.com/sites/jamesconca/2015/10/02/bill-gate...
- rgbrenner 9y agoAnd after those 20 plants are built, it'll increase their nuclear capacity to 58 GWe.... out of 1245 GWe total energy capacity, of which 73% is from coal. For comparison, they produce 34 GWe from two dams: Three Gorges and Yellow River. Nuclear is kind of a drop in the bucket. http://www.world-nuclear.org/information-library/country-profiles/countries-a-f/china-nuclear-power.aspx http://www.world-nuclear.org/information-library/country-pro...
- melling 9y agoNuclear power in China will pass the United States within 10 years: https://www.bloomberg.com/news/articles/2017-01-31/china-s-nuclear-power-fleet-seen-overtaking-u-s-within-decade https://www.bloomberg.com/news/articles/2017-01-31/china-s-n... Coal is expected to drop to 54%.
- ecpottinger 9y agoYet somehow this study leaves out how much China is adding solar and wind energy to it's supply. Infact China is closing down it's worse coal plants. See: https://en.wikipedia.org/wiki/Solar_power_in_China https://en.wikipedia.org/wiki/Solar_power_in_China http://www.bbc.com/news/business-40341833 http://www.bbc.com/news/business-40341833 https://www.bloomberg.com/news/articles/2017-07-19/china-adds-about-24gw-of-solar-capacity-in-first-half-official https://www.bloomberg.com/news/articles/2017-07-19/china-add... https://en.wikipedia.org/wiki/Wind_power_in_China https://en.wikipedia.org/wiki/Wind_power_in_China https://www.cnbc.com/2017/02/13/china-and-us-lead-way-with-wind-power-installations-says-global-energy-report.html https://www.cnbc.com/2017/02/13/china-and-us-lead-way-with-w...
- brownbat 9y ago> Yet somehow this study leaves out how much China is adding solar and wind energy to it's supply. Ahem... > The good news is that China has shown a firm commit- ment to prompt renewable energy use, improving energy efficiency and reducing pollutant emissions from power plants. Great efforts have been, and will continue to be, made by the Chinese government to reduce the emissions of power plants, such as setting an aggressive target to reduce national SO2 emissions by 10% from 2005 to 2010 by installing FGD and closing a large number of small generating units. They project out to 2030 and examine different international assumptions about realistic future energy mixes. But yeah, it's still an optimistic story long term. They'll also need things like low rolling resistance tires and new braking tech to reduce pm 2.5, and reforms in ag, industry, and home heating. But every step is part of it. http://www.tsinghua.edu.cn/publish/ess/7778/20120719151746087644973/%5B18%5D%2520Huo_EST_2010.pdf http://www.tsinghua.edu.cn/publish/ess/7778/2012071915174608...
- Brakenshire 9y agoIs the headline really substantiated in the article? The key part is: > A series of studies by Tsinghua University, whose alumni includes the incumbent president, showed electric vehicles charged in China produce two to five times as much particulate matter and chemicals that contribute to smog versus gas-engine cars. Hybrid vehicles fare little better. Producing particulate matter 50 miles away from a city is not remotely the same as producing it 2ft from a pavement. I'm not sure about smog, though, is the effect regional or local?
- btian 9y agoThat will be fixed long before fossil fuel cars are banned.
- manmal 9y agoEVs could well be their strategy for distributed storage of their planned renewable energy revolution. A 20-30kwh battery can easily supply a home for a full day, supporting the grid at peak times and charging in the sunny hours.
- rgbrenner 9y agoBut they can upgrade those plants to capture some of the pollution or replace them with renewables.. which they'll eventually do. That's a lot easier than replacing everyones cars. The article talks about ending sales... it's going to take another 10-15 years before they're off the road.
- xbmcuser 9y agoThe amount of renewable like solar they are adding I expect it to be a good thing plus from what I gather this ban will be in the future maybe 10 years down the road. By then their energy mix will be quite different.