Simple ways to lower energy bills
Here are some simple things you can do to save money on energy bills while making your home warmer and healthier.
Heat is expensive, so save money by keeping the cold air out and the warm air in.
Windows and doors
- Draw curtains at dusk - to keep the day's heat in. The best curtains are thick and well-fitted, covering the whole window and preferably reaching the floor. A pelmet at the top is even better.
- Consider DIY window-film kits - which can cut heat loss through windows by half and are a fraction of the cost of double-glazing.
- Stop draughts - make sure your windows and doors fit their frames. Use draught stopping tape around windows and doors and draught excluders or door snakes along the bottom of doors.
There are lots of low-cost products at hardware stores for filling gaps and cracks in wooden floors to prevent draughts coming through. Underfloor insulation can also be reduce draughts through floors.
- Turn your heaters off when you don’t need them, rather than leaving them on all day - this includes your heat pump.
- Many heaters are only big enough to heat one room. Close doors and in the evening pull curtains.
Get rid of moisture and dampness in your home, especially when you're cooking and washing.
- Fix any broken or leaking pipes, and clear and fix gutters - leaky pipes and blocked guttering can cause moisture inside your home, which can lead to mould.
- Lay down a ground vapour barrier - this is basically, a giant piece of black plastic sheet that sits on the dirt under your house, keeping dampness away.
- Clear vents - check the outside of the house to make sure all underfloor vents are clear of plants or other blockages. This helps to move damp air out from under your house.
- Cooking, showering and washing - all introduce moisture to your home. The best way to get rid of this moisture is with externally vented extraction fans and vents. If you don't have these, open windows during or after cooking, showering and washing up.
- Dry clothes outside or in a vented clothes dryer - try not to use indoors airing racks. The moisture in the clothes will end up in your home.
- Air your home - open windows and doors at the same time once or twice a day to air the house and let moisture escape, even in winter. Don’t forget to open wardrobe and cupboard doors.
- Ventilate your bedroom - sleeping with your bedroom windows open a crack lets out the moisture that naturally builds up over the night.
- Air your bedding - especially in winter. Duvets, pillows, and other heavy bedding absorbs moisture over time, so air them outdoors when it’s sunny.
Lighting is one of the easiest places you can save energy around your house.
- Turn lights off when you're not using them.
- Replace incandescent light bulbs with energy efficient ones and save $100 or more a year on electricity in your house.
Heating water is expensive, so using less hot water has a big impact on your energy bills.
- Use an efficient showerhead - it still gives you a great shower, but uses much less water. To check the flow rate of your shower, put a 10 litre bucket under the shower - if it fills in less than a minute, your showerhead is wasting water. An efficient showerhead has a flow rate of 9 litres per minute, or less.
- Reduce shower time - a 15 minute shower costs around $1, a 5 minute shower around 33c. A family of 4 could be saving around $18 a week just by taking shorter showers. That’s $900 a year.
- Use cold washes - unless you have an especially dirty load. Modern washing machines and detergents clean well using cold water. A hot water wash uses 90% more electricity than a cold wash.
Appliances left on standby can cost you more than $100 a year on your power bills. Major culprits are home entertainment appliances, like TVs, stereos, game consoles and computer equipment. Plug them all into multi-plug boards so they can all be turned off properly at the same time. Turn off other appliances like whiteware at the wall too.
Heated towel rails
If you have a heated towel rail, only use it when needed. By having it on for 4 hours a day rather than all the time, you could save $130 a year. You can buy timers for towel rails that come on automatically at certain times of the day.
If you have a second fridge only to chill a few drinks, it could cost you $200 a year to run if it’s an old, inefficient model. Consider turning it off or getting rid of it to. Check your fridge door seals - if the door doesn't seal properly, your fridge will use more energy than it needs to.