# Simulation Control

![](https://459479801-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Ma9N5K8lMbAhbyBVgms%2Fuploads%2Fgit-blob-362bf849feb66c0a873d2cbea01cbe06101f1981%2FSimulation_Control.png?alt=media)

![](https://459479801-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Ma9N5K8lMbAhbyBVgms%2Fuploads%2Fgit-blob-bf65657524478a5f8b8e05440d7ebe6ffee033b2%2FSimulation_Control.png?alt=media) - [\[source code\]](https://github.com/ladybug-tools/honeybee-grasshopper-energy/blob/master/honeybee_grasshopper_energy/src/HB%20Simulation%20Control.py)

Create simulation controls with instructions for which types of EnergyPlus calculations to run.

## Inputs

* **do\_zone\_sizing**

  Boolean for whether the zone sizing calculation should be run. Default: True. 
* **do\_system\_sizing**

  Boolean for whether the system sizing calculation should be run. Default: True. 
* **do\_plant\_sizing**

  Boolean for whether the plant sizing calculation should be run. Default: True. 
* **for\_sizing\_period**

  Boolean for whether the simulation should be run for the sizing periods. Default: False. 
* **for\_run\_period**

  Boolean for whether the simulation should be run for the run periods. Default: True. 

## Outputs

* **sim\_control**

  A SimulationControl object that can be connected to the "HB Simulation Parameter" component in order to specify which types of EnergyPlus calculations to run.