Simulation Software

EnergyPlus is widely used in free and commercial applications- a selection:

- OpenStudio (free)
- Simergy (free)
- DesignBuilder (commercial)

Currently only single-zone thermal, but essential for climate-based daylight simulation:
- DIVA4Rhino (commercial, free basic version available)

I recommend you use climate-based daylight simulation & visualization in conjunction with thermal data mapping for maximum effect.