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To: RegulatorCountry
Tesla Model S battery density: 140 WHr/kg

http://enipedia.tudelft.nl/wiki/Tesla_Model_S_Battery

140 WHr = 478 btu

https://www.google.com/search?q=convert+watt+hour+to+btu&rlz=1C1VFKB___US753US753&oq=convert+watt+hour+to+&aqs=chrome.5.0j69i57j0l4.10875j0j7&sourceid=chrome&ie=UTF-8

Energy content jet fuel: 18,800 btu/lb

https://hypertextbook.com/facts/2003/EvelynGofman.shtml

Convert 18,800 btu/lb to btu/kg = 41,446 btu/kg

https://www.google.com/search?q=convert+btu%2Flb+to+btu%2Fkg&rlz=1C1VFKB___US753US753&oq=convert+btu%2Flb+to+btu%2Fkg&aqs=chrome..69i57j6.10135j0j4&sourceid=chrome&ie=UTF-8

Compare: 478 btu/kg for Tesla battery vs 18,800 btu/kg for jet fuel.

Conclusion: It's more likely to see stokers shoveling coal in an airliner, than there is to be a battery powered airliner.

45 posted on 09/28/2017 7:04:05 AM PDT by lacrew
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To: lacrew

Here you go getting all mathy and sciency. We’ve got a narrative to promote, doncha know? We don’t have time for all your physcianics stuff. The planet has a FEVER!

(And needs more cowbell!)


52 posted on 09/28/2017 7:15:37 AM PDT by SargeK
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To: lacrew
Compare: 478 btu/kg for Tesla battery vs 18,800 btu/kg for jet fuel.

Bingo!!

Back when I worked for a living, I was working on a solar-powered aircraft. We had to have a way to store energy overnight, and considered all types of storage systems, plus we used (in our analysis) projections of advanced solar cells with four times the efficiency (at eight times the price) of current technology solar cells.

Our total payload was 1000 pounds on an aircraft as big (though lighter) than an airliner.

Math is hard. But in the end, numbers win over wishful thinking.
54 posted on 09/28/2017 7:22:32 AM PDT by Phlyer
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To: lacrew

Good analysis and exactly right.


58 posted on 09/28/2017 7:34:01 AM PDT by backwoods-engineer (Trump won; we got Gorsuch and a bit of the MAGA agenda. But now the Swamp is back in control.)
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