Time-of-Use Electricity Tariffs Explained: Are They Worth It?
For the right household, a Time-of-Use (ToU) electricity tariff is absolutely worth it in 2026, offering a clear path to lower energy bills. If you can shift a significant portion of your power consumption to off-peak hours—typically overnight and during the middle of the day—the savings can be substantial. However, for households that use most of their energy during expensive peak periods (usually late afternoon and early evening), a standard flat-rate tariff will likely be the cheaper and safer option. This guide will walk you through the numbers, the peak and off-peak times in your state, and the exact steps to determine if making the switch is the right financial move for you.
What Are Time-of-Use Tariffs?
A Time-of-Use tariff isn’t like a traditional electricity plan where you pay the same price for every kilowatt-hour (kWh) of energy you use. Instead, the price of your electricity changes depending on the time of day.
This pricing structure is designed to reflect the real-time supply and demand on the electricity grid. When demand is high (peak hours), the wholesale cost of electricity is higher, and ToU tariffs pass this cost on to the consumer. Conversely, when demand is low and renewable generation, like solar, is abundant (off-peak hours), the price drops significantly.
A typical ToU tariff is broken down into three main periods:
- Peak: The most expensive period, usually on weekday afternoons and evenings when most people get home from work and school, turn on lights, cook dinner, and use heating or cooling.
- Off-Peak: The cheapest period, typically overnight and sometimes during the “solar sponge” hours in the middle of the day when solar energy floods the grid.
- Shoulder: A moderately priced period that falls between the peak and off-peak times.
To access a ToU tariff, you must have a smart (or interval) meter, which records your electricity usage in 30-minute intervals and communicates this data back to your retailer.
The Australian Energy Regulator (AER) has noted a push towards more cost-reflective tariffs, with the Default Market Offer now including comparisons for ToU rates to help consumers make more informed decisions.
Flat Rate vs. Time-of-Use: A 2026 Cost Comparison
The key to saving money on a ToU tariff is to shift your energy-intensive activities away from the peak period. Let’s look at a hypothetical quarterly bill for a household in NSW using 1,500 kWh, to see how the numbers stack up.
Scenario 1: The 9-to-5 Family (High Peak Usage) This household uses most of its power in the evening after work and school.
- Usage Pattern: 50% Peak (750 kWh), 30% Shoulder (450 kWh), 20% Off-Peak (300 kWh)
| Tariff Type | Rate (c/kWh) | Quarterly Usage Cost | Daily Supply Charge (90 days @ $1.10) | Total Quarterly Bill |
|---|---|---|---|---|
| Flat Rate | 35c | $525.00 | $99.00 | $624.00 |
| Time-of-Use | Peak: 50c, Shoulder: 30c, Off-Peak: 20c | $570.00 | $99.00 | $669.00 |
In this scenario, the family would pay $45 more on a ToU tariff because most of their consumption falls into the expensive peak window.
Scenario 2: The Savvy Energy Shifter This household has adapted its routine to minimise peak usage. They run the dishwasher and washing machine overnight and use timers for their pool pump and hot water system.
- Usage Pattern: 20% Peak (300 kWh), 30% Shoulder (450 kWh), 50% Off-Peak (750 kWh)
| Tariff Type | Rate (c/kWh) | Quarterly Usage Cost | Daily Supply Charge (90 days @ $1.10) | Total Quarterly Bill |
|---|---|---|---|---|
| Flat Rate | 35c | $525.00 | $99.00 | $624.00 |
| Time-of-Use | Peak: 50c, Shoulder: 30c, Off-Peak: 20c | $435.00 | $99.00 | $534.00 |
By shifting their usage, this household would save $90 per quarter, or $360 per year, on a ToU tariff.
Peak and Off-Peak Times Around Australia for 2026
The exact times for peak, shoulder, and off-peak periods vary depending on your state and your electricity distributor. It’s crucial to check the specific times for your area, but here is a general guide for major retailers:
| State | Distributor | Peak Times (Weekdays) | Shoulder Times | Off-Peak Times |
|---|---|---|---|---|
| NSW | Ausgrid | 2pm - 8pm | 7am - 2pm & 8pm - 10pm (Weekdays), 7am - 10pm (Weekends) | 10pm - 7am (Daily) |
| VIC | CitiPower | 3pm - 9pm (Daily) | Varies by retailer | 9pm - 3pm (Daily) |
| QLD | Energex | 4pm - 9pm | Morning and late evening | Middle of the day and overnight |
| SA | SA Power Networks | 6am - 10am & 3pm - 1am | 10am - 3pm | 1am - 6am |
Note: These times are indicative and can vary. Always check the Energy Price Fact Sheet from your retailer for the exact times that apply to your plan.
State-by-State Rebates and Concessions for 2026
To further reduce your energy bills, it’s essential to be aware of the rebates and concessions available in your state or territory.
- New South Wales: The Low Income Household Rebate provides up to $285 per year for eligible concession card holders. The Seniors Energy Rebate offers $200 annually to self-funded retirees with a Commonwealth Seniors Health Card.
- Victoria: The Annual Electricity Concession gives a 17.5% discount on electricity usage and supply charges for eligible cardholders. The Utility Relief Grant Scheme offers up to $650 for households in temporary financial hardship.
- Queensland: The Queensland Electricity Rebate is worth $386.34 per year for eligible concession card holders. The Home Energy Emergency Assistance Scheme provides up to $720 every two years for those in financial crisis.
- South Australia: The state energy bill concession provides significant relief for low-income households. Additionally, Origin Energy offers a 20% discount on electricity usage and supply charges for concession customers under the SACEDO scheme.
- Western Australia: The Energy Assistance Payment provides $326.33 per year to eligible concession card holders. There are also specific rebates for dependent children and for air conditioning use in hotter regions.
- Tasmania: The Annual Electricity Concession provides a daily discount, amounting to approximately $513 per year for eligible card holders. A Heating Allowance of $56 per year is also available.
- Australian Capital Territory: The ACT offers rebates for rooftop solar installations and interest-free loans for other energy-efficient upgrades.
- Northern Territory: The NT Concession Scheme provides a concession of up to $1,200 per year on household electricity costs.
How to Decide if a Time-of-Use Tariff is Right for You
- Analyse Your Usage: The first step is to understand when you use the most electricity. If you have a smart meter, your retailer’s online portal should have a breakdown of your usage by time of day. If not, consider your daily routine. Are you at home during the day, or is your home’s energy consumption concentrated in the evening?
- Assess Your Flexibility: How easily can you change your habits? If you have appliances with timers (like dishwashers, washing machines, or pool pumps) or are willing to run them overnight, you’re a good candidate for a ToU tariff. If your routine is rigid and your peak usage is high, a flat-rate tariff is likely a better fit.
- Consider Your Technology: Households with solar panels and a home battery are perfectly positioned to benefit from ToU tariffs. You can store cheap solar energy generated during the day and use it during the expensive evening peak, or even sell it back to the grid for a higher feed-in tariff.
- Compare Specific Plans: Don’t just look at the peak and off-peak rates in isolation. Compare the daily supply charges and the specific c/kWh rates from different retailers. Use the government’s free Energy Made Easy comparison tool to see how different plans would stack up based on your actual usage.
Bottom Line
For Australian households with the flexibility to shift their energy consumption, a Time-of-Use tariff in 2026 presents a significant opportunity to save money on electricity bills. By running appliances during off-peak hours and minimising usage during the expensive evening peak, the savings can be substantial. This is especially true for those with solar panels and battery storage.
However, ToU tariffs are not a one-size-fits-all solution. If your household’s energy usage is heavily concentrated in the peak evening hours and you have limited flexibility to change your habits, you will likely pay more than you would on a simple flat-rate tariff. The key is to understand your own energy consumption patterns and make an informed decision based on your lifestyle. Before switching, always use the government’s comparison tools and review the specific rates and times offered by your retailer.