That’ll be this one: https://resource.capetown.gov.za/documentcentre/Documents/Forms,%20notices,%20tariffs%20and%20lists/Application%20for%20the%20connection%20of%20Embedded%20Generation.pdf
Topic about that specifically: Process to register PV in CoCT
You’ll tick option # 6 on the form, no engineering sign-off needed. Leave blank everything that doesn’t seem to apply.