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Old 12-05-2018, 05:08 AM   #17
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Join Date: Oct 2007
Posts: 19,628
It is understandable why the vehicle world fears flywheel storage , a crash and 5-10 gallons worth of energy at 200,000 RPM is a liar for hires dream.

In a basement a bigger and heavier unit might keep an efficient home going ro 12 or 24 hours.

Cost might be an issue , but at least the service life would be decades.
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