> For the complete documentation index, see [llms.txt](https://docs.ladybug.tools/hb-energy-primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ladybug.tools/hb-energy-primer/components/6_result/read_zone_sizing.md).

# Read Zone Sizing

![](https://459479801-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Ma9N5K8lMbAhbyBVgms%2Fuploads%2Fgit-blob-427ab179d4a82a699b1fea664703d68b812f5478%2FRead_Zone_Sizing.png?alt=media)

![](https://459479801-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Ma9N5K8lMbAhbyBVgms%2Fuploads%2Fgit-blob-66224c5eadee70edd570fa386e5e6dd8e7acf226%2FRead_Zone_Sizing.png?alt=media) - [\[source code\]](https://github.com/ladybug-tools/honeybee-grasshopper-energy/blob/master/honeybee_grasshopper_energy/src//HB%20Read%20Zone%20Sizing.py)

Parse a zone sizing (ZSZ) csv result file from an energy simulation to get data collections for the cooling/heating load over the peak design day.

## Inputs

* **zsz \[Required]**

  Full path to a zone sizing (ZSZ) csv result file that was generated by EnergyPlus. 

## Outputs

* **cooling\_load**

  a list of HourlyContinuousCollections for zone cooling load. There will be one data collection per conditioned zone in the model. 
* **heating\_load**

  a list of HourlyContinuousCollections for zone heating load. There will be one data collection per conditioned zone in the model.