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Energy Vs Power?

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ENERGY VS POWER?  Whats the difference?  

ENERGY = is the capacity to do work.
POWER = is doing the work faster.

The Wind doesn't always blow, and
. . . the Sun doesn't always shine,
but, batteries can Store,
. . . both Energy and  Power.

A system that stored an enormous amount of energy, wouldn’t be very useful,
. . . if it could only return that energy a few watts at a time, and
a system powerful enough to light up a whole city, wouldn’t be good for much,
. . . if its batteries died after a few minutes.

Storage systems have to be able to store enough ENERGY,
. . . to last through the “blackout” periods, and
. . . they have to be able to deliver enough POWER,
. . . to meet the electrical load.

It’s common for people to use the words POWER and ENERGY interchangeably.
But now you know the difference:
. . . ENERGY is the total amount of work done, and
. . . POWER is how fast you can do it.
In other words, POWER is ENERGY per unit of time.

02-02-2015 Source:  ENERGY VS POWER?


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