What is the cheapest time of day to use electricity in Australia?

The cheapest time to use electricity is during the off-peak period, which is typically late at night (e.g., 10 pm to 7 am) and all day on weekends. Some new plans in 2026 also offer free or very cheap electricity in the middle of the day to absorb excess solar power.

Do I need a smart meter for a time-of-use tariff?

Yes, a smart meter is essential for a time-of-use tariff. It records your electricity usage in short intervals (e.g., every 30 minutes), which allows your retailer to bill you at different rates throughout the day.

What are typical peak electricity hours in Australia?

Peak electricity hours are generally on weekdays in the late afternoon and early evening, for example, from 2 pm to 8 pm or 4 pm to 8 pm. These times can vary depending on your state, distributor, and electricity retailer.

Can I save money with a time-of-use tariff if I don't have solar panels?

Yes, you can still save money without solar panels, but you must be disciplined about shifting your energy usage. By running appliances like your washing machine, dishwasher, and dryer during off-peak hours overnight or on weekends, you can take advantage of the cheaper rates.

Time-of-Use Electricity Tariffs Explained: Are They Worth It?

Time-of-Use Electricity Tariffs: The Verdict for 2026

Yes, a time-of-use electricity tariff is worth it for a growing number of Australian households in 2026, but only if you can be flexible with when you use power. With the rollout of smart meters accelerating and new solar-friendly plans emerging, the potential to significantly cut your energy bills by shifting your consumption to cheaper, off-peak hours is greater than ever. If you’re out for most of the day, have a solar battery, or can run major appliances overnight or in the middle of the day, a time-of-use tariff is likely to be a financially savvy move. Conversely, if your household’s energy consumption is highest during the early evening on weekdays, a traditional flat-rate tariff may still be the safer, more economical option.

This guide will walk you through how these tariffs work, the real-world costs in 2026, and the practical steps to determine if making the switch is right for you.

What is a Time-of-Use Tariff?

A time-of-use (ToU) tariff is a pricing structure where the cost of electricity varies depending on the time of day you use it. Instead of a single flat rate, your day is divided into different blocks with distinct prices:

Peak: The most expensive period, typically in the late afternoon and early evening on weekdays when demand on the grid is highest.
Off-Peak: The cheapest period, usually late at night and in the early hours of the morning when demand is lowest.
Shoulder: A mid-range price that applies between peak and off-peak times.

This contrasts with a flat-rate (or single-rate) tariff, where you pay the same price per kilowatt-hour (kWh) no matter when you use electricity. To access a ToU tariff, you need a smart meter, which records your electricity usage in 30-minute intervals and communicates this data to your retailer.

The Australian Energy Market Commission (AEMC) has mandated the universal adoption of smart meters by 2030, meaning ToU tariffs will become increasingly common.

2026 Price Snapshot: ToU vs. Flat Rate

The price difference between peak and off-peak periods can be substantial. For example, some retailers charge more than double for peak usage compared to off-peak. Let’s look at a practical comparison.

Typical 2026 Tariff Rates (Example for NSW - Ausgrid network):

Flat Rate: Approximately 36.2 c/kWh
Time-of-Use Rates:
- Peak (2pm - 8pm weekdays): Can be as high as 70.65 c/kWh
- Shoulder (7am - 2pm & 8pm - 10pm weekdays): Around 37.33 c/kWh
- Off-Peak (10pm - 7am weekdays & all weekend): Around 29.61 c/kWh

Annual Bill Comparison (Hypothetical Household using 4,000 kWh/year):

Scenario 1: High Peak Usage (Family at home 5pm-9pm)
- Flat Rate Bill: 4,000 kWh * $0.362 = $1,448
- ToU Bill: Could be significantly higher, potentially over $1,800 if the majority of usage falls into the expensive peak window.
Scenario 2: High Off-Peak Usage (Shifted Appliance Use)
- Flat Rate Bill: $1,448
- ToU Bill: Could be lower, potentially under $1,200 if a significant portion of consumption is moved to off-peak and shoulder times.

These figures are illustrative, but they highlight the financial risk and reward. Your savings depend entirely on your ability to change your habits.

The Game Changer: Solar and the ‘Solar Soak’

For households with solar panels, and especially those with a battery, ToU tariffs are almost always beneficial. You can use your own free solar power during the day and avoid drawing from the grid during expensive peak periods.

A significant development in 2026 is the introduction of new tariff structures designed to take advantage of abundant midday solar energy. The Australian Energy Regulator (AER) has introduced a new opt-in ‘Solar Sharer Offer’ for those on the Default Market Offer (DMO) in NSW, South East QLD, and South Australia. This plan includes three hours of free electricity usage during the middle of the day (e.g., 11am - 2pm in NSW). Similarly, Victoria is introducing a cheap “solar soak” tariff period between 11 am and 4 pm.

This is a direct incentive to run high-energy appliances like dishwashers, washing machines, and pool pumps during the day when solar generation is high and wholesale electricity is cheap.

Who Should Switch to a Time-of-Use Tariff?

A ToU tariff is likely a good fit if you:

Have Solar and/or a Battery: You can maximise self-consumption and minimise expensive grid usage.
Work Out of the Home During the Day: Your energy consumption will naturally be lower during peak afternoon hours.
Are a ‘Night Owl’: You tend to do laundry, run the dishwasher, or charge devices late at night.
Own an Electric Vehicle (EV): You can schedule your car to charge overnight during the cheapest off-peak rates.
Are Disciplined: You are willing and able to actively manage when you use your major appliances.

Who Might Be Better Off on a Flat Rate?

You might want to stick with a flat-rate tariff if you:

Work from Home: And use heating or cooling systems extensively during the afternoon peak.
Have a Young Family: With high, unavoidable energy needs in the evening (cooking, bathing, heating).
Value Simplicity: You prefer a predictable bill and don’t want to worry about what time it is when you turn on the dryer.
Don’t have a Smart Meter: Without one, you can’t access a ToU tariff.

How to Make the Switch

Get a Smart Meter: If you don’t have one, contact your electricity retailer. Under the accelerated rollout, installations are becoming more common, and may be free if part of a planned rollout or if your old meter is faulty.
Analyse Your Usage: Look at your electricity bills or use your smart meter data to understand when you use the most power. Many retailers have online portals that show your daily consumption in 30-minute blocks.
Compare Retailer Plans: Don’t just accept the default ToU offer. Use the government’s Energy Made Easy website to compare market offers. Look at the specific rates for peak, off-peak, and shoulder periods, and check the times for each block as they can vary between retailers.
Check the Default Market Offer (DMO): The DMO is a price cap set by the AER that acts as a reference price. For 2026-27, draft determinations suggest DMO prices could fall, providing some relief for consumers. Use this as a benchmark to ensure you’re getting a competitive deal. Victoria has a similar Victorian Default Offer (VDO).

Bottom Line

For the average Australian consumer in 2026, investigating a time-of-use tariff is a worthwhile exercise. The electricity market is actively shifting to reward customers who can be flexible with their energy consumption. The introduction of ‘solar soak’ periods and free daytime electricity offers are powerful incentives. However, the move is not a guaranteed money-saver for everyone.

Before you switch, do your homework. Get a smart meter, understand your household’s unique energy rhythm, and compare the fine print on retailer plans. If you can successfully shift your usage away from the evening peak, you are well-positioned to make significant savings on your annual electricity bill. For those stuck in peak-hour consumption patterns, the familiar predictability of a flat-rate tariff remains the more prudent choice.