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A comment on Show HN: Build A Personal Power Plant for $200. Parent comment

Re:Show HN: Build A Personal Power Plant for $200 by CalRobert on Monday September 11, 2017 @12:16PM (#15219610)
Can you elaborate? I'd love to get 150 joules out of a system I only put 100 joules in to...
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Re:Show HN: Build A Personal Power Plant for $200 by quickben on Monday September 11, 2017 @12:37PM (#15219806)
Time is a factor. You have to charge for 1.5 hours to be able to pull in 1 hour (minus system losses)
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Re:Show HN: Build A Personal Power Plant for $200 by samjohnson on Monday September 11, 2017 @01:41PM (#15220414)
A Watt is an SI unit defined as 1 joule/second, and is used for measure rate of energy usage/generation. So this system generates up to 100 joules/second, and can output up to 150 joules/second (until the stored energy is consumed).
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Re:Show HN: Build A Personal Power Plant for $200 by danielvf on Monday September 11, 2017 @12:22PM (#15219662)
That's the max charge and discharge rates. The battery capacity is a separate number. You can only discharge what you have in the battery.
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