Something that came up in another thread today [1] is the LLNL graphs about how energy is generated and used [2]. From these, it's apparent that <i>about 2/3</i> of the input energy for electricity generation becomes waste output instead of usable output.<p>Improving the efficiency of electricity generation <i>must</i> be one of the keys to Clean Energy.<p>[1]<a href="https://news.ycombinator.com/item?id=9994294" rel="nofollow">https://news.ycombinator.com/item?id=9994294</a><p>[2]<a href="https://flowcharts.llnl.gov/content/assets/docs/2014_United-States_Energy.pdf" rel="nofollow">https://flowcharts.llnl.gov/content/assets/docs/2014_United-...</a>