# Write EPW

![](https://3405893330-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Ma9gBkJelXEQ5LsYEl7%2Fuploads%2Fgit-blob-d22bba3338accb1479018d62bfa68934f8fa7aa9%2FWrite_EPW.png?alt=media)

![](https://3405893330-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Ma9gBkJelXEQ5LsYEl7%2Fuploads%2Fgit-blob-321538fb6506b984f772d8c80bff0de9449f9680%2FWrite_EPW.png?alt=media) - [\[source code\]](https://github.com/ladybug-tools/dragonfly-grasshopper/blob/master/dragonfly_grasshopper/src/DF%20Write%20EPW.py)

Write an EPW object into a .epw file.

## Inputs

* **epw\_obj \[Required]**

  An EPW object such as that exported from the Create EPW component. 
* **folder**

  A directory into which the .epw file will be written. 
* **file\_name**

  An optional name for the .epw file. Default will use the city of the EPW object's location. 
* **run \[Required]**

  Set to True to run the component and write the .epw file. 

## Outputs

* **report**

  Reports, errors, warnings, etc. 
* **epw\_file**

  File path to a .epw that contains all of the data in the input \_epw\_obj.