電網唔只3.86%損耗 根本已經突破咗物理極限
"Different power is lost at different stages
1-2% of energy is lost during the step-up transformer from when the electricity is generated to when it is transmitted.
2-4% of energy is lost in the transmission lines
1-2% of energy is lost during the step-down of the transform from the transmission line to distribution.
4-6% of energy is lost during the distribution
So, the average loss of power between the power plant and consumers ranges between 8-15%."
典型例子
https://www.chintglobal.com/global/en/about-us/news-center/blog/how-much-power-loss-in-transmission-lines.html
電池充電理論效率90%
電池放電理論效率90%
20%損耗已經係俾多少 甚至可以低到70%
https://www.eia.gov/todayinenergy/detail.php?id=46756
42%*90%*80%* 電車電動機效率(80~90%)
電車能量效率=24~27%
Toyota 引擎效率已經去到40%-43%
扣10%損耗+運輸燃油
都高效率過哂電車