Default Market Offer South Australia 2026–27

The AER's 2026–27 safety-net price for South Australian households on the SA Power Networks grid, and how to check your own plan. No ranked plans. No sales call.

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SA DMO price for 2026–27 (residential, incl. GST)

Network	Benchmark usage	Flat rate	Time of use / Solar Sharer
SA Power Networks	4,000 kWh/yr	$2,334	$2,276

Compared with 2025–26, the flat rate is up $33 (+1.4%) and time of use is down $25 (−1.1%). South Australia was the only region where residential flat-rate prices rose; they fell in NSW and South East Queensland. Checked 21 Oct 2026 (AER final determination).

Flat-rate tariff cap (residential, incl. GST)

Network	Supply charge (c/day)	Usage charge (c/kWh)
SA Power Networks	180.0512	41.9103

Source: AER DMO 2026–27 final determination (PDF), Appendix C, clause 9(1). Checked 21 Oct 2026. Time-of-use and Solar Sharer tariff caps are in the same appendix.

What the DMO is

The most a retailer can charge on a standing offer (default plan), from 1 July 2026 to 30 June 2027. Checked 21 Oct 2026 (AER).
The reference price retailers must compare their plans against. Checked 21 Oct 2026 (AER).
Not a cap on your bill. Your usage and your retailer's rates decide that. Checked 21 Oct 2026 (AER).

Flat rate or time of use?

In 2026–27 the SA time-of-use reference price is $58 below flat rate at benchmark usage. Checked 21 Oct 2026 (AER). Whether that helps you depends on when you use power. Check your own bill on Energy Made Easy before switching tariffs.

Solar Sharer in SA

SA's free Solar Sharer window is 12pm to 3pm local time, for eligible smart-meter homes that opt in. Checked 21 Oct 2026 (energy.gov.au). See who can get Solar Sharer.

Check your plan in 3 steps

Get your last bill and note your yearly usage and your plan's reference-price percentage.
Compare it with the table above. Remember the percentage is measured at 4,000 kWh.
Run your bill on Energy Made Easy, then ask your retailer for a better plan. Walkthrough: bill check.

Concessions and rebates are separate from the DMO. Ask your retailer which ones apply to you.

Also see: NSW DMO 2026–27 · DMO checklist

General information only, not financial advice. SavySaver is an independent, anonymous Australian site.