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by Oculus
4417 days ago
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In an interview at Ted with Chris Anderson, Elon Musk was asked the same question: CA: Most of American electricity comes from burning fossil fuels. How can an electric car that plugs into that electricity help? EM: Right. There's two elements to that answer. One is that, even if you take the same source fuel and produce power at the power plant and use it to charge electric cars, you're still better off. So if you take, say, natural gas, which is the most prevalent hydrocarbon source fuel, if you burn that in a modern General Electric natural gas turbine, you'll get about 60 percent efficiency. If you put that same fuel in an internal combustion engine car, you get about 20 percent efficiency. And the reason is, in the stationary power plant, you can afford to have something that weighs a lot more, is voluminous, and you can take the waste heat and run a steam turbine and generate a secondary power source. So in effect, even after you've taken transmission loss into account and everything, even using the same source fuel, you're at least twice as better off charging an electric car, then burning it at the power plant. Url: http://www.ted.com/talks/elon_musk_the_mind_behind_tesla_spa... |
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