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Save energy,
save money

There are lots of ways to tackle energy use and there are plenty of changes you can make that won’t cost a cent.

Is your retailer
still right for you?

Find out if you’re paying too much for your power by using a free electricity
comparison website. Sites such as Powerswitch and Switchme let you view and
compare electricity prices from various retailers to help you choose the plan best
suited to you!


Summer tips

Keeping cool

Finding passive ways to beat the heat will keep you comfortable and save you money on your power bill.

Switching off

Follow these tips to make sure your appliances are working at their best and aren’t using power when they’re not needed

Cooler heads

Insulation doesn’t just keep your home warm in winter; it can also keep out the heat. Temperatures in your roof space can hit over 40 degrees in summer. Ceiling insulation creates a heat barrier, protecting your home from the scorching rays from the sun.

Throw some shade

Summer sun shining through the windows can overheat your house. This is worst in the afternoon, due to the sun’s lower angle. West-facing windows let in the most heat. Close the curtains to block out some sun and keep your house cooler.

Happy heat pump

Make sure your air conditioner is working efficiently by giving it a basic check-up — Remove dust build-up by vacuuming air vents, and clean or replace air filters.

Keep your cool

If you’re running an air conditioning or heat pump unit, openings in your home will cause cold air to escape, wasting energy. Keep windows and doors closed while running your A/C.

Find the flow

If you’re not running air conditioning, boost the flow of cool air through your home by opening doors and windows. These openings create breeze channels, allowing cool fresh air to pass through your home.


Did you know that, on average, using a clothes dryer can cost over $1 per load? Save money over summer by making the most of the Sun’s warmth and drying clothes outside for free!

Keep it clear

Clean the outside area around your A/C unit, removing weeds and debris which can grow up in Spring months. This will help keep your A/C running efficiently.

Summer sizzle

The oven uses electricity and generates unwanted heat in your home. Use the barbeque to cook meals outdoors instead. Make the most of the warm evenings, and save money!

Winter tips

Keeping cosy

Staying warm can get expensive. Heating your house the right way at the right times, and keeping the warmth in as much as possible, will help lower your power bill.

Switching off

Follow these tips to make sure your appliances are working at their best and aren’t using power when they’re not needed.

Staying dry

A dry house is more comfortable, healthier, and much easier to heat, meaning you’ll use less power.

Mind the gap

Stop draughts to keep rooms warm. Check door hinges are tight. A rolled-up towel makes a good draught stopper.

Don’t get overcharged

Switch off chargers when you’re not using them, or they’ll keep using electricity.

Here comes the sun

Open the curtains in the morning to let the sun in, and close them at dusk to keep in the day’s warmth.

Window wipers

Wipe down windows with a towel in the morning to remove condensation that builds up while you sleep.

Set that thermostat

Set your heater thermostats to 18-20°C, and keep the door shut in the room you want to heat. Avoid using unflued gas heaters which emit toxic fumes and moisture.

Don’t wait, ventilate

Use your extractor fan or open windows during and after cooking.


When you boil the jug, only boil as much water as you need.

Stay cool

Check your fridge door seals. Shut a piece of paper in the door and pull. If the paper falls out easily the seals may need replacing. If you have a second fridge without much in it, consider turning it off or getting rid of it.

Cold wash only

Always wash full loads, and use cold washes for your laundry unless you have a really dirty load. A hot wash can cost 10 times more in electricity than a cold wash.

Dry outside, dry inside

Dry clothes outside, or in a dryer that vents outside, to avoid dampness from your clothes ending up in your home.

Wrap it up

Ensure your hot water cylinder is insulated and working properly. See energywise.govt.nz/at-home/water for tips.

Towel time

Only use your heated towel rail when needed. You can buy automatic timers to help with this.

Air it out

Use your extractor fan or open windows during and after showering.

Shower power

Showers use less water and energy than baths. Use an efficient showerhead with a flow of 9L per minute or less. Reduce shower time — a 15 minute shower costs around $1!

Lights out

Turn lights off when you’re not using them, and replace old incandescent bulbs with LEDs if you can.

Heat on demand

Turn heaters and heatpumps off when you don’t need them or you’re not home. Make sure your heatpump filters are clean.

Standby standoff

Appliances like TVs, game consoles and computers use power on standby. Turn them off at the wall — plugging them into multiboards can make this easier.

Managing your power costs

Saving energy is important as it saves you money on energy bills, and reduces your carbon footprint.

Save Energy, Save Money Tips

Whatever the weather, keep your home efficient, healthy and dry with our summer and winter tips.

To learn more click the links below:


Gen Less is supported by EECA (the Energy Efficiency and Conservation Authority). It’s a government agency dedicated to mobilising New Zealanders to be world leaders in clean and clever energy use. You can learn more about what we do and why on our website.

For more information visit their website: