Accreditation is national and is a condition of the SRES subsidy, including for the Cheaper Home Batteries Program, where installation must be undertaken by or supervised on site by an SAA-accredited battery installer.

So rooftop solar has one national installer accreditation, one national inverter standard and one national subsidy. What it does not have is a common connection process or a common export rule — those belong to the distribution networks and, for emergency curtailment, to five separate jurisdictional regimes commencing across six years. See One inverter standard, one accreditation, one subsidy — and five emergency backstops across six years.

Electrical licensing itself remains state-based, which is the ordinary occupational licensing problem recorded in Finish automatic mutual recognition of occupational licences.