世紀大騙局!電動車碳排比燃油車高 - 電動車
By Freda
at 2018-06-27T22:50
at 2018-06-27T22:50
Table of Contents
原文連結:https://tinyurl.com/y84kkugh
原文內容:
世紀大騙局!電動車碳排比燃油車高
記者鍾釗榛/綜合報導
全球車商紛紛投入電動車發展,各國也列出禁售氣柴油車的期限,但是根據Engaged
Tracking能源分析機構報告,竟出現令人意外的答案,電動車的碳排量其實比燃油車更高
。
電動車不環保,這絕對會顛覆現有的概念,畢竟電動車不燃燒石化燃料,也不會排放二氧
化碳,究竟這樣的說法從何而來;Engaged Tracking能源分析機構給出答案,若要追究車
輛的碳排量,就需要從能源取得開始評估,而非車輛本身是否排碳,以英國作為研究,全
國有五成電力來自煤炭與天然氣,屬於汙染最重的火力發電,如果把發電的碳排算進去,
一輛Tesla與一輛燃油車的碳排量是相同的。
另一方面火力發電本身的能源轉換率只有三成,加上電動車有非常多電子零件與線路消耗
電力,所以電動車的電力轉換成動能比想像中低;在這樣的計算條件下,台灣全年發電量
有82%來自火力發電,依比例來看,電動車的碳排量甚至比燃油車更大,電動車還會增加
電能使用負載,相對燃油車早已極盡所能增加燃燒效率,究竟電動車是不是真的能降低碳
排來解決溫室問題,已經出現一個非常大的問號了。
心得/說明:
如果電力能像北歐一樣,電動車應該會環保;
但目前在絕大多數的國家應該無法,
台灣更慘,綠能幾乎沒有,核能也被檢討,火力繼續增加。
更不用說台灣還缺電…
--
Tags:
電動車
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