Installer vetting guide and phone-call script

Updated 17 October 2026 · General information only, not personal financial or electrical advice.

The installer matters as much as the battery. If they disappear, your warranty claims get much harder.

Check before you call (all free, all online)

• Solar Accreditation Australia (SAA) accreditation for the designer and installer. Batteries need SAA accreditation to qualify for the rebate (Clean Energy Regulator).
• Electrical contractor licence for your state. In QLD you can check it on the Electrical Safety Office register.
• New Energy Tech Approved Seller status for the retailer, if they claim it.
• ABN Lookup (abr.business.gov.au): how long has the business been trading? Are there a lot of recent name changes?
• Reviews from at least 12 months ago, not just this month. Read the negative ones for how the business handled after-sales problems.

Phone-call script

1. "Will your own staff install it, or subcontractors? Who's the accredited installer on the paperwork?"
2. "Can you quote the battery's usable kWh and show the STC calculation?"
3. "How did you size it? Will you look at my interval data?"
4. "If the battery fails in year six, who do I call — you or the manufacturer? What's the process?"
5. "Who handles network approval and export limits with my distributor?"
6. "What's your deposit and payment schedule? Is there a cooling-off period?"
7. "Is a site visit included before the final price?"
8. "Can I speak to two customers from more than a year ago?"

Good signs

• They ask about your usage before naming a battery size.
• They put everything in writing and don't rush you.
• They have a local service contact.

Warning signs

• A "today only" price.
• No site visit.
• Vague answers about who is responsible for the warranty.