Winter savings tips

The cost of energy used for small day-to-day tasks add up, especially over winter. We’ve pulled together a list of easy tweaks to help you stay warm for less.

Get the most out of your heating 

A few little tweaks can help you warm your space without using more energy than you need to, and keep that precious heat inside. 

Stop warmth escaping by sealing gaps 

Save $100 a year  

Precious heat can escape through sneaky gaps. A quick once-over to seal up any draughts around the house can reduce the need for extra heating – saving around $100 for the average NZ home each year.   

  • Seal up sneaky draughts 

    • Use draught stoppers and door snakes. 

    • Add weatherstripping around doors and windows. 

    • Tightenloose hinges, catches and latcheson doors and windows. 

    • Seal gaps around wiring and plumbing. 

    • Check less obvious places like kitchen cabinets, wardrobes and ceiling hatches.  

Heat the rooms you're using

Save $320 a year  

Keep your heating focussed on the rooms you’re using, and close doors to the others. It's a simple way to keep your home cosy and save up to $320 each year. 
 
A heat pump is the best option for heating larger spaces, while portable electric heaters can be great for smaller rooms and offices 

Run your heat pump efficiently 

Heat pumps are the most efficient type of heating for your living area. A few tricks to make your heat pump work smarter, not harder, can save on your energy bills. 

Heat pump checklist

  • Set the temperature between 19-21 degrees

    If you have older people or young babies at home, it might need to be a little warmer. 

  • Use the timer

    This can warm the room just before you get home and switch off when you don't need it.  

  • Set the fan speed to ‘auto’

    This optimises the fan speed. Only set it to 'low' if you really need it to be quiet — this will reduce the efficiency and cost more to run.

  • Only switch it on when you need it

    Heat pumps use more energy overall if you leave them running 24/7, it'll cost you less to only run it when you are at home. 

Clean your heat pump filter 

Save $50 a year  

Clean the removable filter in your heat pump with a vacuum or warm water once a month during winter to ensure it runs efficiently.  

You can always clean them more frequently if they’re particularly dirty.  

Switch off unused appliances

Make sure the energy you're paying for isn't being wasted by unused appliances. 

Power off to avoid energy waste

Save $200 a year  

Switch off appliances that aren’t needed every day - like a second fridge, heated towel rail, or devices on standby. Even when they’re not in use, home appliances can quietly add $200 or more to your yearly power bill. 

  • Let smart plugs do the thinking for you 

    Smart plugs and smart devices can help you save energy and make the most of cheaper off-peak power if you’re on a time of use plan. They can also help you avoid wasting energy from appliances that aren't in use. 

    Starting from around $20, smart plugs let you optimise when your appliances use energy — like automatically switching off heaters, desktop computers and entertainment systems — helping you cut energy waste. 

Check you’re on the right power plan  

Your power usage at home might have changed, and the plan that worked for you a year ago might not be the best one now.    

Compare and switch plans

The right power plan for your house should match how you and your family live  – helping you stay warm without the bill shocks.  
 
Billy is a free tool, powered by the Electricity Authority, to help you take control of your power bills by comparing and switching plans.  

  • Make the most of off-peak power 

    Going off-peak can reward you for shifting when you use energy with cheaper rates. Appliances like dishwashers, washing machines, and dryers can often be shifted to late in the evening, overnight or on weekends, when electricity is cheapest. 

    If it suits you, choosing a 'time of use' plan could help you make the most of off-peak power this winter – but they only work out cheaper if you’re able to shift your energy use to those discounted times.  

    Work out if you're on the right power plan 

Tweak your laundry routine  

Changing up your laundry routine can save on energy use by cutting down on hot water and preventing dampness – which makes it harder to keep your home warm.  

Switch to cold water washes

Save $30 a year  

Save your hot water for when you need it. Most everyday washes are just as effective on a cold cycle. 
 
A cold water wash uses less energy than a warm one, and usually works just as well for most fabrics and detergents. It can also protect your clothing. It's a simple switch that can save up to $30 each year. 

  • Dry clothes outside to keep dampness away 

    Air-drying your clothes outside or in a covered area reduces the amount of moisture released into the air by up to 5l per load*. This prevents dampness and makes it easier to keep your home warm. 

    More on reducing dampness 

Find support options

Digital guide

Stay warm and spend less

Download our digital guide, created in partnership with Consumer NZ, for more simple things you can do to keep in the heat and save on your power bills this year.