How Long Do Power Outages Last in Australia?
A typical unplanned outage runs about 80 minutes in a city or town and closer to two hours in the country. Most are back on well before that. A handful each year run for a day or more, and those are the ones that cost you a fridge full of food.
The honest version of this answer is that there is no single national number, because where you live changes it by a factor of more than thirty. Here is what the distributors themselves publish.
How long does a power outage usually go for?
Electricity distributors publish two numbers each year. SAIDI is the average total minutes a customer is off supply across a year. SAIFI is the average number of separate interruptions. Divide one by the other and you get the average length of a single outage.
CitiPower and Powercor publish theirs by area type. These are their 2026-27 targets for average minutes off supply, unplanned:
| Where you live | Minutes off supply per year | Interruptions per year | Average length of one outage |
| Melbourne CBD | 6.99 | Not published | Not published |
| Melbourne urban | 23.13 | Not published | Not published |
| Urban | 57.18 | 0.72 | About 79 minutes |
| Rural short | 104.14 | 1.00 | About 104 minutes |
| Rural long | 240.92 | 2.09 | About 115 minutes |
Look at the first column rather than the last. Someone in the Melbourne CBD expects 7 minutes without power across an entire year. Someone at the end of a long rural feeder expects four hours, spread over roughly two separate outages. That is a 34-fold difference between two customers of the same company.
Two caveats worth stating. These are targets the distributor publishes, not measured outcomes for a given year. And they are Victorian figures from one distributor group, so treat them as the shape of the thing rather than the number for your street.
How long does a power outage last in my area?
For a live answer, you want your distributor, not your retailer. Your retailer is whoever sends the bill. Your distributor owns the poles and wires, and it is the one that knows when the power is coming back. It is named separately on your bill.
- NSW: Ausgrid, Endeavour Energy or Essential Energy
- Victoria: CitiPower, Powercor, AusNet, United Energy or Jemena
- Queensland: Energex in the south east, Ergon Energy elsewhere
- South Australia: SA Power Networks
- Western Australia: Western Power in the south west, Horizon Power elsewhere
- Tasmania: TasNetworks
All of them run a live outage map with an estimated restoration time. That estimate is a genuine best guess from crews in the field, and it moves, particularly during storms when they are still finding out how much is down.
What causes the long ones
The averages above are dominated by short faults that clear quickly. The outages people remember are a different animal.
Storms and wind. The single biggest cause of multi-day outages. Trees come down across lines in dozens of places at once, and crews have to work through them one at a time. This is why a bad storm means days rather than hours: the fault is not hard to fix, there are just hundreds of them.
Distance. That rural long figure is not about worse equipment. It is about a fault being 200 kilometres from the depot, on a line that serves forty houses, behind a locked gate.
Planned work. These are scheduled, you get written notice, and they usually run four to eight hours in daylight. They are the ones you can actually prepare for, and the ones most likely to cost you food, because people ignore the letter.
How long is too long without power?
It depends what you are protecting, and there are two clocks running.
Your fridge: about two hours. Australian guidance says food remains safe in your refrigerator for 2 hours, and anything held above 5°C for four hours or more should be thrown out. Your freezer gives you 24 to 48 hours if you leave the door shut.
Your wallet: twelve hours. That is the threshold where compensation schemes start to kick in, and it is not a coincidence. It is the point regulators decided an outage stops being an inconvenience.
So the practical answer is that anything under two hours is a nuisance, anything past four hours costs you the contents of the fridge, and anything past twelve hours may be worth claiming for.
How long does your power need to be off before compensation?
This varies by state and it has changed recently, so advice circulating in Facebook groups is often out of date.
Western Australia. Western Power administers a state government scheme paying $120 as a one-off for any supply interruption lasting longer than 12 consecutive hours. You need your meter number and you have 60 days from the outage to claim.
Victoria. The Essential Services Commission sets Guaranteed Service Level payments, which are automatic rather than claimed. They run from $40 to $380, including $90 for more than 12 hours of unplanned outage on a major event day, and $130 for more than 18 hours across a year.
New South Wales. Ausgrid's current position is that it no longer provides food spoilage payments caused by power outages, and it points customers at home and contents insurance instead.
South Australia. SA Power Networks says for most food spoilage your insurer should be able to help you recover your loss, and that where the cause was outside their control, storms and fallen trees included, they cannot compensate.
Check your own distributor's page before assuming. The schemes get reviewed, and the one that paid your neighbour two years ago may not exist now.
Can I claim spoiled food from a power outage?
Usually through your insurer rather than your distributor, and that surprises people.
Most home and contents policies include cover for food spoilage caused by a power failure. Limits vary and some insurers apply an excess where others do not, so the thing to do is check your product disclosure statement now rather than after a storm. Ausgrid specifically notes that insurance cover for spoilage is often available without an excess.
Practical points if you do claim. Photograph what you are throwing out before it goes in the bin. Note when the power went off and when it came back, because your distributor's outage records will confirm it. And be aware that repeated small claims can affect your premium or your renewal, so a hundred dollars of groceries may not be worth a claim on a policy you want to keep clean.
How to stop caring how long it lasts
If you are in a CBD apartment with seven minutes of outage a year, do nothing. This article does not apply to you and nobody should sell you anything.
If you are on a rural feeder looking at four hours a year across two outages, and storm season reliably takes out your street for a day, the calculation is different.
Free: keep four ice bricks in the freezer permanently and an esky in the shed. Move the meat and dairy across when the power goes and leave the fridge shut. That covers most outages at zero cost.
If you are home: a portable power station will run a domestic fridge for 12 to 19 hours depending on size, and it doubles as camping gear. Someone has to plug it in.
If you are not home: a dedicated fridge battery backup takes over automatically, in milliseconds. We tested one and got about 27 hours on a family fridge. Read the BLUETTI FridgePower review before you buy, because there is a default setting that nearly cost us a fridge full of food.
Not sure which applies to you? The Power Station Finder takes a couple of minutes, or call us on 03 7056 6732. If your outages are seven minutes a year we will tell you to save your money.
Worth reading next: how long food lasts in a fridge without power, whether a UPS will keep your fridge running, or the BLUETTI FridgePower review for the unit that covers a day-long outage without anyone being home.
Reliability figures are CitiPower and Powercor's published 2026-27 targets for average minutes off supply. Average outage length is calculated from those SAIDI and SAIFI figures. Compensation schemes were checked against each distributor's published policy on 1 September 2026 and are reviewed periodically, so confirm with your own distributor and insurer before relying on them. Product photography supplied by Bluetti.
