Two questions, “do I need a CES to claim STCs” and “do I need a CCEW to claim STCs”, have the same answer, because the CES (Victoria) and the CCEW (NSW) are the equivalent state documents. Other states have their own versions; see the pages on NSW, Victoria, Queensland and the other states.
Two systems, one job
A solar job runs through two regimes at once:
- State electrical safety law. The licensed electrician tests the work and lodges a certificate with the state regulator.
- The federal Small-scale Renewable Energy Scheme. The Clean Energy Regulator creates STCs for an eligible, accredited installation, based on the product, the installer, the serials, the photos and the timing.
The certificate belongs to the first. The claim belongs to the second.
So is it required?
Strictly, the claim in the REC Registry does not have a field for the state certificate in the way it has fields for serial numbers. You do not need to upload it to create the certificates. That is the narrow answer.
The practical answer is more careful:
- The installation must be lawful. A solar system connected without the required state certificate is not properly completed. If a regulator or the CER finds that out, the claim is weakened.
- Traders and audits ask for it. Many compliance checklists include the state certificate or its reference, since it supports the story that the electrical work was done by a licensed person on the day.
- It supports attendance. A certificate signed by the electrician, with the date, fits with the installer photos and statements.
- Warranty and insurance depend on it. A customer whose house is later damaged will be asked for it.
Keep it, do not skip it
Put the certificate reference and a copy in the job record with the photos, the serials, the assignment form and the written statements. Retention is covered in how long to keep records.
From the desk: if a job is waiting on a certificate, do not hold the STC claim hostage to it unless your trader requires it. But do not let the certificate go past its state deadline either, and mind the 12 month creation window.
Who is on the hook
The electrician carries the legal duty to lodge. The retailer carries the commercial risk if it does not happen, because the customer will come to them. If the same person is both, the paperwork needs to show both roles.
What this means for installers
Make the certificate a close-out step with a named owner and a reference stored on the job. When you lodge the claim through a trader, the compliance desk can check the file before it goes in. See STC trading, how it works and the resources hub. The audit guide explains what an auditor asks for.