Thread: Hoover dam as giant battery
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Old 07-30-2018, 08:43 PM   #29 (permalink)
California98Civic
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
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Quote:
Originally Posted by roosterk0031 View Post
Energy Return on Energy Invested per energy source.

https://www.forbes.com/sites/jamesco.../#7134d085a027

Nuclear wins at 75x

Solar PV with hydro energy storage loses at 2x, 4x without storage.

Per the author US needs 7x to be sustainable.
I am not sure that Forbes piece is accurate. Page 28 and 29 of the 2013 study it cites for the graph show significantly more varied and different results: http://festkoerper-kernphysik.de/Wei...I_preprint.pdf
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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