Black Rock Wind Farm requested 85 turbine permits from the FAA at a height of 667 feet

If Black Rock is going to build only 29 turbines, why did they request 85 permits from the FAA?
the illustration is hard to read, but you can find it here at Appendix F - 002

See Appendix F - 002 here

and you can see the details of each permit request here showing a structure height of 667 feet.

enter one of the ASN numbers here to see the details