Singapore is a diamond-shaped island with several surrounding smaller islets. It has a flat coastline with a land area of 710 km2 in 2009. With a highly urbanized city and limited land space, Singapore has been faced with problems of road congestion and rapid growth in car population. Electric vehicles (EVs) provide low emission urban transportation. Even taking into account the emissions from power plants needed to fuel EVs, the use of EVs still reduce carbon dioxide emissions significantly. From the energy aspect, EVs are efficient. EVs are promising alternative fuel vehicles that can reduce energy consumptions and carbon dioxide emissions in Singapore. A life cycle cost model was built to calculate life cycle costs of EVs and internal combustion engine cars in Singapore. It was found that EV is the most expensive car under current Green Vehicle Rebate scheme. The EV will be economically viable in Singapore if there is a breakthrough at batteries to cut EV prices.
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Wong et al. (2010) studied this question.
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