Gallery: Study Finds Electric Cars Powered by Coal Plants Have a Heavy ...


A new study from the Norwegian University of Science and Technology states that electric cars that receive energy from coal-fired power plants could potentially have a higher carbon footprint than some of their petrol or diesel-powered counterparts. However If electric cars derive their electricity from renewable, emission-free sources such as solar and wind power, then they remain among the greenest vehicles on the road.

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  1. jerryd October 21, 2012 at 10:59 am

    Tony is right except engines in cars in real traffic only get 7% of their fuel to thr road as they are almost never driven the their eff mode. In fact my EV’s can go 60-70 mph on the fuel most gas cars use at idle.

    Next that depends on which country the coal plants are in. In the US they are more eff and clean than most places and US coal now only produces 32% of US electricity.

    And just 1kw of PV now only costing $1k, $2k installed if well shopped can power an EV for 25 yrs!!

  2. tony myers October 8, 2012 at 7:48 pm

    There are other benefits besides carbon footprint. One major advantage is less dependence on crude from un-friendly countries. It’s much easier to make electricity than to make gasoline. Another point to consider is that it is easier to clean 1 stack than 1 million tail pipes. Although not perfect, alternative source for electricity are becoming more economically feasible. An electric motor usually has a much longer lifespan than and internal compustion engine. Huge improvements in internal compustion engines are not as likely as in batteries. Electric motors are already in the 90-95% efficiency ranges. Internal combustion engines are mostly around 25% efficient, and that is in fairly new condition. Many people don’t think to change the oil or air filters which degrade efficiency quickly.

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