How to Reduce Your Home Energy Bills with Smarter Appliance Use
Appliances account for approximately 30–40% of the average Australian household's electricity bill. Using them more efficiently can make a meaningful difference. This guide shares practical tips that actually work — no major investments required, just smarter habits.
Your Fridge: The Biggest Appliance Power Draw
Your refrigerator runs 24 hours a day, 365 days a year, making it typically the single highest-energy appliance in your home after the air conditioner.
- Temperature settings: Set fridge to 3–5°C and freezer to -18°C. Every degree colder uses more energy. Setting the freezer to -25°C when -18°C is sufficient wastes power.
- Door seals: Check seals annually. A leaking seal forces the compressor to work harder constantly.
- Location: Keep the fridge away from heat sources (oven, direct sun, dishwasher). Every degree of ambient warmth forces the compressor to work harder.
- Coil cleaning: Dust on condenser coils (at the back) reduces efficiency. Vacuum them once a year.
- Fill level: A full fridge is more efficient than an empty one (the food mass retains cold). An overfull fridge restricts airflow and is less efficient. Around 70–75% full is ideal.
Washing Machine Savings
- Cold water washing: Modern detergents are designed for cold water. Switching from 40°C to 20°C washes saves approximately 90% of the wash cycle's energy (heating water is most of the energy cost).
- Full loads: A full load is far more efficient per item than a half load. Wait for a full load where possible.
- Eco programs: Use the eco cycle rather than the quick wash. Eco programs use cooler water and longer cycles but significantly less energy.
- Spin speed: A higher spin speed extracts more water, reducing dryer time. 1200–1400 RPM is a good balance of extraction and fabric wear.
Dryer Efficiency
- Clean the filter every load: A blocked lint filter reduces airflow and significantly increases drying time and energy use.
- Partial dry: Use a medium-heat cycle rather than the highest setting, and don't over-dry — clothes don't need to be bone-dry, just dry enough to wear or fold.
- Drying rack first: Pre-drying even 10–15 minutes on a rack before the dryer cycle reduces dryer time significantly.
- Heat pump dryers: If you use a dryer frequently, upgrading to a heat pump dryer can cut dryer energy use by 50–60%.
Air Conditioner Efficiency
- Temperature settings: Set 24–26°C in summer rather than 18–20°C. Every degree lower in summer increases energy use by approximately 10%.
- Fan mode: At night or in mild weather, fan-only mode circulates air without the compressor running. Much lower energy use.
- Timer: Program the system to turn off after you're asleep (most people sleep fine at a warmer temperature than they're comfortable sitting in).
- Filters: Clean or replace filters monthly during heavy use. Dirty filters restrict airflow and reduce efficiency.
- Seal gaps: Air conditioning a room with open doors to unconditioned spaces wastes energy dramatically.
Dishwasher Savings
- Economy cycle: Use the eco/economy cycle rather than intensive. It's slower but uses significantly less water and energy.
- Full loads: Same as the washing machine — always run a full dishwasher.
- Air dry: Turn off the heated drying element if your dishwasher has one, and open the door slightly after the final rinse to air dry. Saves 20–30% of the dishwasher's energy use.
Upgrade Timing
If your fridge is more than 10–12 years old, it's likely a 2–3 star energy model. Upgrading to a 5-star current model can save 40–60% of your fridge running costs — possibly $80–$150/year. The payback on a good-value replacement fridge may be 4–6 years, after which you're ahead.
Need New Energy-Efficient Appliances?
Oceania Appliances stocks the most energy-efficient appliances available in each category. Our team can advise on the right model for your budget and usage patterns. Contact us at support@oceaniaappliances.com.au or visit our Wetherill Park showroom. Open 7 days 10am–8pm.