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Re:Solar power grew faster than any other fuel in 2016 by jackmott on Wednesday October 04, 2017 @09:08AM (#15400165)
Re:Solar power grew faster than any other fuel in 2016 by parametrek on Wednesday October 04, 2017 @02:30PM (#15403020)
Technology hasn't kept up with that line. Here are 18650 cells on the market, sorted by Wh/kg:

http://batteries.parametrek.com/index.html?size=18650&wh_kg=...

The best are still only 276 Wh/kg, no where near the 350 Wh/kg the graph would predict.