BlendME : Blender Modeling Environment

BlendME (The Blender Modeling Environment) is an add-on for the Open Source Blender animation software, focusing on analysis software connectivity. You can use software such as Radiance or Energyplus from within Blender to perform daylight or energy analysis.

The software is not available yet, but when it does it will be either commercial, either donation-ware.

Some more info about BlendME on Blender3Darchitect and on BlenderNation.

Daylight Analysis with Radiance:

Energy Analysis with EnergyPlus: