*Time Rate* of energy consumption is power (J/s or W).
*Time Rate* of energy production is power (J/s or W).

*Time Rate* is an essential part of these statements!

---- Original message ----
>Date: Wed, 27 May 2009 19:36:16 -0400
>From: "Stan Jakuba" <[email protected]>  
>Subject: [USMA:45113] Power or Energy?  
>To: "U.S. Metric Association" <[email protected]>
>...
>   Energy consumption is power.
>   Energy production is power.
>...    
*Time Rate* is missing from these two statements!
*Time Rate* is *not* implied!

Example: (symbols in italic)
The energy E (or work) required to lift a book of mass m from the floor to the 
top of a table at height h is E = mgh, independent of the time taken for the 
lift. The time could be an interval of  e.g. 5 seconds, 10 seconds, or more. 

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