How Australian Households Can Shrink Their Monthly Utility Bills

Housing costs in Australia jumped 7.2% year-on-year in the 12 months to February this year, according data from the Australian Bureau of Statistics. Using Australian Energy Regulator benchmark pricing, the median household electricity bill is approximately $165/month or $495/quarter. A typical family of four has approximately $420 per quarter. South Australia and NSW tend to have the highest bills.

According to the Australian Government YourHome resource, this correlation breaks down as roughly 40% heating and cooling, 25-30% water heating and about 25% appliances. Temperature control and hot water account for nearly three-quarters of the average electricity bill. Screens, lights and kitchen gadgets add up to relatively little.

That breakdown tells you where to focus. Turning off lights helps. But the real savings sit in how you heat, cool, and use hot water.

Heating, Cooling, and Hot Water

The Australian Government recommends setting cooling to 24°C in summer and heating to 18-20°C in winter. Each degree beyond those settings adds roughly 10% to running costs.

Close off rooms not in use, shut doors, close vents on ducted systems, only heat or cool spaces where people actually are. Ceiling fans cost about 2 cents per hour to run and make you feel approximately 3°C cooler. Running a fan alongside the aircon, or instead of it on milder days, reduces how hard the system works.

Electric storage hot water systems consume 3,000 to 4,000 kWh annually. Set the thermostat at 60 °C, this is the lowest safe temperature to eradicate bacteria. Shut the system down completely if you’re leaving for more than a week.

A 4-star rated showerhead saves a family of four around $315 a year on combined water and energy bills.

Laundry and Timing

Cold water washing saves up to 10 times the energy of a warm wash. Modern detergent handles everyday loads in cold water without any cleaning difference.

On a time-of-use tariff, running the dishwasher and washing machine during off-peak hours (typically after 10pm) costs significantly less than running them during the peak window of 3pm to 9pm. Victoria has universal smart meters, making this straightforward for most Victorian households.

Clothes dryers use 2 to 6 kWh per load. Heavy dryer users spend up to 10% of their total electricity bill on drying alone.

Draught Sealing and Lighting

Filling gaps around doors and windows to stop heated or cooled air from escaping reduces heating and cooling costs by up to 25%. Draught stoppers are cheap and the installation takes minutes.

LED bulbs use around 80% less energy than old incandescent or halogen bulbs and last considerably longer.

Standby power, the electricity that appliances consume when they are off but still plugged in, makes up as much as 10% of a household’s total electricity use. Smart plugs ($15 to $30 each) allow you to set entertainment systems and home office devices to stop drawing power overnight.

Switching Providers

The AER runs Energy Made Easy (energymadeeasy.gov.au), a free government comparison tool. Input your usage from your latest bill and compare against available plans in your area. Victoria has its own tool through the Essential Services Commission.

For 2025-26, the Default Market Offer (DMO) ranges from $1965 for Ausgrid customers across Sydney to $2741 for Essential Energy customers in region. If you’re on a standing offer near the DMO ceiling and haven’t done comparisons of plans, switching to a market offer could see your bill drop significantly.

Do a comparison reminder every 12 months. If you see a lower price that you want but don’t want to switch providers, call your current one. Referencing a competitor’s bid frequently prompts a retention discount.

Government Rebates and Programmes

The federal Energy Bill Relief Fund ended 31 December 2025. The universal $300 and $150 automatic credits are finished. Concession card holders can still access state-based rebate schemes — check energy.gov.au/rebates for eligibility.

The federal Small-scale Renewable Energy Scheme (SRES) remains active. A 6.6kW rooftop solar system attracts approximately $1,600 in STC subsidies in 2026, applied as an upfront discount by your installer.

The Cheaper Home Batteries Program, expanded in December 2025 to an estimated $7.2 billion over four years, provides around a 30% discount on home battery installation. Before the programme, 1 in 40 solar households had a battery. That figure has shifted to 1 in 24.

State-specific programmes currently active:

• Victoria: Solar Homes program — rebates on solar panels and batteries
• NSW: Peak Demand Reduction Scheme — VPP incentives for battery connection
• WA: $1,300 battery subsidy in the Synergy area (Perth), up to $3,800 in Horizon Power areas
• ACT: Sustainable Household Scheme — loans up to $15,000 at 3% interest for energy-efficient upgrades

Savings at a Glance

Action	Verified Annual Saving	Source
Thermostat adjusted by 1°C	~10% on heating/cooling costs	energy.gov.au
Cold water laundry	Up to 10x less energy per wash	energy.gov.au
Draught sealing	Up to 25% off heating/cooling	energy.gov.au
4-star showerhead	~$315 for a family of four	energy.gov.au
LED lighting	80% less energy than incandescent	energy.gov.au
Eliminating standby power	Up to 10% of electricity bill	YourHome

Common Questions