I found this site that lists a PowerCLI script but I must be doing something wrong since the CSV is always blank, no headers. There were some comments at the bottom but it didn't seem to go anywhere.
Script I Tested
Can someone suggest a script that I can use that will allow me to see all VM's and disks that are thin provisioned, what their total size is, what they are currently using and if possible how much space they need to expand to the entire amount. We need to see how much more space is needed to expand all thin disks in the farm.