3 ms·

Then the question becomes the location of the power station. If Singapore only has coal power status, the studies from the US is not relevant as the car is prim

Then the question becomes the location of the power station. If Singapore only has coal power status, the studies from the US is not relevant as the car is primarily driven in Singapore. In a country like Paraguay where electricity is 100% hydroelectric, the gains would be fantastic! [0] - https://en.wikipedia.org/wiki/Electricity_sector_in_Paraguay https://en.wikipedia.org/wiki/Electricity_sector_in_Paraguay

dalke 11y ago
Singapore's power grid uses primarily natural gas [1], at 0.5 g CO2/Wh [2]. Coal is about 0.9 g CO2/Wh [3]. One of the links in the article is to http://www.climatecentral.org/news/a-roadmap-to-climate-friendly-cars-2013-16318 http://www.climatecentral.org/news/a-roadmap-to-climate-frie... , which shows the places in the US where it's better to have a hybrid than an electric vehicle, if your primary concern is CO2 emissions. These include West Virginia, where 95.5% of the electricity comes from coal. [8] I've been looking for a country where there are only coal powered power plants. The developed countries countries which use the most coal as a percentage of electricity generation include Australia and Greece [4], at about 75% [4,5]. China is also at 75% [6], while it's 61% in India [7]. There are, it therefore seems, very few places where an electric car is not significantly better than a (non-hybrid) gasoline vehicle with respect to CO2 emissions. [1] https://en.wikipedia.org/wiki/Electricity_sector_in_Singapore https://en.wikipedia.org/wiki/Electricity_sector_in_Singapor... ; [2] http://www.techspot.com/news/64063-singapore-first-tesla-model-s-owner-hit-11000.html http://www.techspot.com/news/64063-singapore-first-tesla-mod... ; [3] http://www.eia.gov/tools/faqs/faq.cfm?id=74&t=11 http://www.eia.gov/tools/faqs/faq.cfm?id=74&t=11 lists 2.07 pounds CO2/kWh = 2.07/2.2 grams/Wh. ; [4] http://www.world-nuclear.org/information-library/country-profiles/countries-a-f/appendices/australia-s-electricity.aspx http://www.world-nuclear.org/information-library/country-pro... ; [5] http://www.sourcewatch.org/index.php/Greece_and_coal http://www.sourcewatch.org/index.php/Greece_and_coal ; [6] https://en.wikipedia.org/wiki/Electricity_sector_in_China https://en.wikipedia.org/wiki/Electricity_sector_in_China ; [7] https://en.wikipedia.org/wiki/Electricity_sector_in_India https://en.wikipedia.org/wiki/Electricity_sector_in_India ; [8] http://www.eia.gov/state/?sid=WV http://www.eia.gov/state/?sid=WV ; [9] Enough footnotes? :)

dalke 11y ago

Singapore's power grid uses primarily natural gas [1], at 0.5 g CO2/Wh [2]. Coal is about 0.9 g CO2/Wh [3]. One of the links in the article is to http://www.climatecentral.org/news/a-roadmap-to-climate-friendly-cars-2013-16318 http://www.climatecentral.org/news/a-roadmap-to-climate-frie... , which shows the places in the US where it's better to have a hybrid than an electric vehicle, if your primary concern is CO2 emissions. These include West Virginia, where 95.5% of the electricity comes from coal. [8] I've been looking for a country where there are only coal powered power plants. The developed countries countries which use the most coal as a percentage of electricity generation include Australia and Greece [4], at about 75% [4,5]. China is also at 75% [6], while it's 61% in India [7]. There are, it therefore seems, very few places where an electric car is not significantly better than a (non-hybrid) gasoline vehicle with respect to CO2 emissions. [1] https://en.wikipedia.org/wiki/Electricity_sector_in_Singapore https://en.wikipedia.org/wiki/Electricity_sector_in_Singapor... ; [2] http://www.techspot.com/news/64063-singapore-first-tesla-model-s-owner-hit-11000.html http://www.techspot.com/news/64063-singapore-first-tesla-mod... ; [3] http://www.eia.gov/tools/faqs/faq.cfm?id=74&t=11 http://www.eia.gov/tools/faqs/faq.cfm?id=74&t=11 lists 2.07 pounds CO2/kWh = 2.07/2.2 grams/Wh. ; [4] http://www.world-nuclear.org/information-library/country-profiles/countries-a-f/appendices/australia-s-electricity.aspx http://www.world-nuclear.org/information-library/country-pro... ; [5] http://www.sourcewatch.org/index.php/Greece_and_coal http://www.sourcewatch.org/index.php/Greece_and_coal ; [6] https://en.wikipedia.org/wiki/Electricity_sector_in_China https://en.wikipedia.org/wiki/Electricity_sector_in_China ; [7] https://en.wikipedia.org/wiki/Electricity_sector_in_India https://en.wikipedia.org/wiki/Electricity_sector_in_India ; [8] http://www.eia.gov/state/?sid=WV http://www.eia.gov/state/?sid=WV ; [9] Enough footnotes? :)