This is our company’s policy on this:
Installation of the product must comply with all applicable codes and regulations. The service of a certified and trained electrical technician may be required for the installation process.
In many cases, a professional electrician may be willing to sign off on your own electrical work, provided that s/he feels comfortable with your experience and skills. They will need to check/test your wiring to ensure it meets building code and electrical safety standards. You will need the electrical installation permit in order to claim the rebate. If you don’t want to do this – that’s fine, but you are unlikely to qualify for the rebate.
Please note: electrical homeowner permits are not acceptable for this type of installation because you have not installed using a licensed professional e.g. electrician.