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Did you know?

  • home insulation only became mandatory in 1978 so about 60% of homes have none or poor insulation
  • moisture or dampness can have an impact on your family's health particularly for people with respiratory diseases
  • during winter the temperatures of living areas and bedrooms of many New Zealand houses are well below the World Health Organisation suggested minimum of 18°C.

How we use energy

The average New Zealand household spends about $2000 a year on electricity, with other fuels like gas in addition. That’s a significant chunk out of anyone’s budget. Electricity accounts for the majority (69%) of household energy. Solid fuels (wood, etc) account for 24%, gas 9% and LPG 2%.

Here is what we use electricity for:

Energy Pie Chart


Simple steps to reduce energy use and create a healthier home:

  • turn off lights when you leave the room
  • close windows and curtains at sunset in the winter
  • switch appliances off at the wall when you're not using them
  • check your hot water cylinder to see if it is set at 60 ºC (140 ºF)
  • exclude draughts
  • insulate walls and ceilings to well above Building Code requirements
  • convert to solar hot water heating

For more detailed information on reducing your energy bills, considering energy efficiency in your renovation projects, new lighting, heating or other home improvements visit

Last Reviewed: 07/02/2017

Energy Efficiency and Conservation Authority  (EECA)

EECA's role is to encourage, promote, and support the uptake of energy efficient initiatives and new renewable energy.

You will find useful energy information by visiting the EECA or Energywise websites.



Home Insulation

Warm Up New Zealand: Healthy Homes

This is a three-year programme that began in 2013. It offers free ceiling and underfloor insulation for low-income households, particularly families with children and high health needs. It's expected to insulate around 46,000 additional houses over the next three years.

Find out more about Warm Up New Zealand: Healthy Homes.

Last Reviewed: 08/02/2017