 ##  [Specific Energy](/specific-energy) 

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

  
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**Engineering &amp; Applied Technologies Dictionary**

 
Definition

The amount of energy stored, released, or available per unit mass of a material or system, typically expressed in joules per kilogram (J·kg⁻¹) or watt‑hours per kilogram (Wh·kg⁻¹); used to compare energy capacity on a mass basis.