##  [Specific Power](/specific-power) 

  ##  [Specific Power](https://engineering.quantumdictionary.io/specific-power-0) 

  

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**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The instantaneous or sustained power output (or input) available per unit mass of a device or system, usually expressed in watts per kilogram (W/kg); includes both peak (short‑duration) and continuous (sustained) ratings and is distinct from gravimetric energy density (Wh/kg).