### Question
What is the definition of islanding?


### Answer
The definition of **islanding** is as follows in *42 U.S.C. § 17231*:

> a distributed generator or energy storage device continuing to power a location in the absence of electric power from the primary source

#### Citation:
  - *42 U.S.C. § 17231*
  - Heading: **CHAPTER 152-ENERGY INDEPENDENCE AND SECURITY > SUBCHAPTER V-ACCELERATED RESEARCH AND DEVELOPMENT > Part D-Energy Storage for Transportation and Electric Power**

