The Sydney Rental Property Price Power BI model demonstrates some key features of Power Pivot BI, using data that is engaging yet relatively straightforward to understand. You can analyse rental trends for houses, units, or all property in Sydney for any period between 1991 and Q1 2015. The data is grouped by Local Government Area (LGA) and can be filtered by Rings which are defined by their proximity to the Sydney CBD.
Instructions for using the charts can be found here