Final payment should follow a working, documented system — not a friendly promise that “monitoring will come online tomorrow.” A commissioning checklist protects both performance and warranty paths.
Power and safety proofs
Confirm isolators labelled, earthing intact, and the inverter showing expected operating status. Ask for test results appropriate to the installation standard your state requires.
- Match panel and inverter serials to the invoice
- Receive CEC compliance documentation
- Verify monitoring login on your own device
- Note export limit settings against the approval letter
- Photograph array layout and switchboard labels
- Hold a retention until outstanding defects close
If you cannot see generation on a sunny commissioning day, you are not finished.
Paperwork pack
Keep warranties, STC assignment, user manuals, and distributor approval together. Future buyers and insurers ask for them.
Performance sanity check
Compare first-week sunny-day output to the quote’s expected specific yield. Early gaps are easier to escalate than year-three regrets.
Handover training
Learn how to shut the system down safely and how to read fault lights. Five minutes of handover prevents panicked calls later.