> 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/5_simulate/simulation_control.md).

# Simulation Control

![](/files/-Ma9OfgoXzoqIWKe2DBk)

![](/files/-Mihpew7cS427FNN3oV5) - [\[source code\]](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.