The Australian Standards behind your installation, in plain English

Why this matters to you

Standards compliance is not paperwork. Each of these standards exists because something went wrong often enough to warrant a rule. Knowing roughly what they cover lets you ask better questions - and recognise when an installation is being done properly.

AS/NZS 5033 - the solar array

Governs the design and installation of the photovoltaic array itself: string configuration, DC cabling, isolation, earthing, labelling, and fire-safety considerations. The DC side of a solar system operates at voltages that don't behave like household AC and can't simply be switched off by flipping a breaker - this standard is largely about managing that.

AS/NZS 4777 - grid connection

Governs inverters and how they connect to the grid: voltage and frequency limits, anti-islanding protection (so your system shuts down safely during a blackout rather than back-feeding into lines a worker might be repairing), and power quality requirements.

This is the standard that makes your inverter turn off in a blackout unless you have a properly configured backup circuit - a behaviour many people are surprised by until it's explained.

AS/NZS 5139 - battery installation

Governs battery energy storage: where a battery may be located, clearances required, mounting surfaces, protection from fire spread, and whether a location is habitable. What that means for your wall. This is why battery placement isn't arbitrary - typical requirements include meaningful clearances around the unit and installation against a non-combustible wall, with additional measures if installed indoors.

If someone proposes mounting a battery in a bedroom wall cavity, that's not a shortcut, it's a compliance failure.

AS/NZS 3000 - the wiring rules

The general electrical installation standard governing everything else: the switchboard, protective devices, cabling, and how the solar system integrates with your existing electrical installation. It's why a switchboard upgrade is sometimes genuinely necessary rather than an upsell - older boards may not have the capacity or protection devices to safely accommodate a new generation source.

Who's accountable

Installations must be carried out by SAA-accredited installers - registered electricians who have completed additional solar-specific training. Accreditation is checkable. Compliance documentation should be provided to you on completion, and you should keep it: it matters for warranty claims and for the sale of your property.