Revit Architecture 2011 Features Sun Path Simulation
Based on the concepts known from Ecotect Autodesk Revit Architecture 2011 enables you to simulate the sun path, in order to better understand the impact of the sun in relation to your project and its surrounding context. The sun path is a visual representation of the sun’s range of movement across the sky at the geographic location you specify for a project. The sun path displays in the context of your project and includes on-screen controls for positioning the sun at any point within its range of movement.

Along with this you can set the sun settings where changes have been made to how you select your project location. Included in the location dialog is a Google Map interface where you can search for your exact location.

Via the ‘Knowing What You Don’t Know About CAD’ Blog ..

2010/03/26 at 07:15
One item that you didn’t mention regarding Sustainability/Analysis in Revit is the Analysis Visualization Framework.
This is not surprising, as there isn’t a lot of user-visible aspects of the capability, just the Analysis Display Style dialog under Manage Tab -> Additional Settings.
Under the hood it actually is quite substantial, and is basically an API portal to our graphics pipeline for an Add-on to create visualization of analysis results directly in the Revit viewport. It’s very similar to Ecotect.
I’d love to see you take a look at this and give some thoughts!
Cheers,
Kyle