A interesting energy storage idea
 

Another interesting energy storage idea.

:thumbup:

https://www.wired.com/2016/05/forget...ed-train-hill/

https://vimeo.com/39364772

https://vimeo.com/75895781?from=outro-embed

https://vimeo.com/48546631?from=outro-embed


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Redneck - how about figuring out how much energy you would get from 2000 kg (car weight) going down a 100 foot (33 meter) hill?

Steve

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More info here.

Electricity and Power Storage - Ares North America


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P.E. = m X g x h

m = 2000 kg, g = 9.81 m/s^2, h = 33 m
P.E. = 647460 J

Assuming it takes the car 60 seconds to travel down the hill and there is 100% conversion:
P = E/T
P = 10.791 kW
Assuming 50% conversion (after friction and conversion losses), you are looking at 5 kW.