📋 In this guide:
- Average electricity bill Adelaide benchmark: $2,334 a year
- That assumes about 4,000 kWh of annual usage
- Roughly $195 a month, or $584 a quarter
- Federal bill rebate ended in December 2025
- Tesseract ZERO: fixed 28¢/kWh for a 10-year term
“Is my power bill normal?” It’s one of the most common questions Adelaide households ask, usually right after opening a quarterly bill that’s bigger than expected. The honest answer is that there’s no single average electricity bill Adelaide homes should expect. But there is a useful benchmark, and once you know it, you can tell fairly quickly whether your bill is reasonable or whether something needs to change.
This guide explains what the regulator treats as a typical South Australian bill for 2026–27, why many households feel they’re paying more this year, and how to compare your own bill against the benchmark.
The Benchmark: What the Regulator Says Is Typical
Each year the Australian Energy Regulator (AER) sets the Default Market Offer (DMO), a price cap for standing offers and a reference price for every market plan. For 2026–27, the reference bill for a typical South Australian household on a flat-rate plan is $2,334 a year.
That figure assumes annual usage of about 4,000 kWh, or roughly 11 kWh a day. In everyday terms:
| Period | Reference bill |
|---|---|
| Year | $2,334 |
| Quarter | about $584 |
| Month | about $195 |
Derived from the AER’s 2026–27 DMO reference bill for SA Power Networks customers.
Keep in mind that this is a benchmark for a modest household, not a promise. Plenty of Adelaide homes use far more than 11 kWh a day, especially families with air conditioning, a pool or someone at home during the day.
What Changed in 2026–27
On 1 July 2026, the flat-rate reference bill in South Australia rose by 1.4%, or about $33 a year. According to EnergyPlans’ summary of the AER decision, SA was the only region where the flat-rate benchmark went up. Time-of-use customers had slightly better news, with the SA time-of-use benchmark falling about 1.1%, according to EnergyPlans’ summary of the decision.
Why Your Bill Might Feel Higher Anyway
Here’s something many people miss. The federal Energy Bill Relief Fund, which credited households $300 in 2024–25 and up to $150 in the second half of 2025, ended on 31 December 2025. So 2026 bills carry no automatic federal credit.
Does that mean prices jumped? Not by that much. But if you’d grown used to seeing a rebate on your bill, the total you pay now can feel noticeably bigger even when the underlying rates barely moved. State concessions are still available for eligible households, so it’s worth checking whether you qualify.
How to Compare Your Bill With the Benchmark
Take a family of four in Paralowie paying $820 a quarter. Is that too much? At first glance it’s well above the $584 benchmark. But look at their usage: 17 kWh a day, much higher than the 11 kWh the benchmark assumes. Divide their bill by their usage, and the price per kWh is broadly in line with a typical plan. Their problem isn’t a bad deal. It’s how much energy they use, and when.
To do the same check:
- Find your daily average usage on your bill.
- Compare it with about 11 kWh a day, the benchmark assumption.
- Check your supply charge and usage rates against a few current plans on Energy Made Easy.
- Look at when you use power. If most of it lands in the evening peak, that’s where your bill is being built. Peak grid rates can reach up to 56¢ per kWh.
What Pushes Adelaide Bills Up
- Evening cooling and heating, right when prices peak
- Pool pumps running at the wrong time of day
- Standing offers for households that have never switched plans
- Older appliances, especially electric hot water and heaters
- Rising prices over the long run. ABS data shows electricity prices have risen about four times over in 20 years, roughly 7.5% a year.
For practical fixes before the hot months, see our guide to cutting your summer power bill in Adelaide. If you want to shop around, our guide to comparing electricity providers in Adelaide walks through what to check.
How Is Tesseract ZERO Different?
Comparing plans helps you find a better price for grid power. Tesseract ZERO is a third way to energy that reduces how much grid power you need. Tesseract was founded in South Australia in 2018. We install solar and battery technology at your home, own it, operate it and manage it, and you pay a fixed 28¢ per kWh for the clean energy your home uses, fixed for the 10-year agreement term, with $0 upfront.
For eligible households, typical customers may save up to 30% on their energy costs.
Based on the savings of a typical customer. Eligibility criteria apply. Savings vary based on household energy usage and location.
Learn more on the Tesseract ZERO page.
FAQ
What is the average electricity bill in Adelaide?
The AER’s 2026–27 reference bill for a typical South Australian household on a flat-rate plan is $2,334 a year, based on about 4,000 kWh of usage. That’s roughly $584 a quarter or $195 a month.
Why is my Adelaide power bill higher in 2026?
Part of the reason is that the federal Energy Bill Relief Fund ended on 31 December 2025, so bills no longer carry an automatic rebate. SA’s flat-rate benchmark also rose 1.4% from 1 July 2026.
How many kWh does an Adelaide household use per day?
The benchmark assumes about 11 kWh a day, but real usage varies widely. Larger families with cooling, heating or pools often use much more.
Conclusion
The average electricity bill Adelaide households are measured against is about $2,334 a year, but your own bill depends on how much power you use and when. Compare your daily usage with the benchmark, check your plan, and focus on the evening hours where most of the cost sits.
Want to know where your bill stands? Send us one power bill. No cost, no obligation — and if it isn’t a good fit, we’ll tell you. Contact us here.
How is Tesseract ZERO different?
Clean energy made at your home, without buying the system.
Tesseract installs, owns and maintains solar and a battery at your home. You pay only for the clean energy you use, at one fixed rate for 10 years.
